Patents
#1–#50
U.S. Patent
0,334,823 - Commutator for Dynamo Electric Machines - 1886 January
26 - Elements to prevent sparking on dynamo-electric machines;
Drum-style with brushes.
U.S. Patent
0,335,786 - Electric Arc lamp - 1886 February 9 - Arc lamp with
carbon electrodes controlled by electromagnets or solenoids and a
clutch mechanism; Corrects earlier design flaws common to the
industry.
U.S. Patent
0,335,787 - Electric arc lamp - 1886 February 9 - Arc lamp's
automatic fail switch when arc possesses abnormal behavior;
Automatic reactivation.
U.S. Patent
0,336,961 - Regulator for dynamo electric machines - 1886 March 2 -
Two main brushes connected to helices coil ends; Intermediate point
branch shunt connection for third brush.
U.S. Patent
0,336,962 - Regulator for Dynamo Electric Machines - 1886 March 2 -
Auxiliary brush[es] shunting a portion or whole of the field
helices coil; Regulates energy flow; Adjustable level of
current.
U.S. Patent
0,350,954 - Regulator for Dynamo Electric Machines - 1886 October
19 - Automatic regulation of energy levels; Mechanical device to
shift brushes.
U.S. Patent
0,359,748 - Dynamo electric machine - 1887 March 22 - Improve
construction; Facilitate easier construction; Reduce the cost;
Magnetic frame; Armature; Alternating current synchronous
motor.
381968 -
Electro magnetic motor
U.S. Patent
0,381,968 - Electro magnetic motor - 1888 May 1 - Mode and plan of
operating electric motors by progressive shifting; Field Magnet;
Armature; Electrical conversion; Economical; Transmission of
energy; Simple construction; Easier construction; Rotating magnetic
field principles.
U.S. Patent
0,381,969 - Electro Magnetic Motor - 1888 May 1 - Novel form and
operating mode; Coils forming independent energizing circuits;
Connected to an alternating current generator; Synchronous
motor.
U.S. Patent
0,381,970 - System of Electrical Distribution - 1888 May 1 -
Current from a single source of supply in the main or transmitting
circuit induce by induction apparatus; Independent circuit(s);
Electric distributor.
U.S. Patent
0,382,279 - Electro Magnetic Motor - 1888 May 1 - Rotation is
produced and maintained by direct attraction; Utilizes shifting
poles; Induction magnetic motor.
U.S. Patent
0,382,280 - Electrical Transmission of Power - 1888 May 1 - New
method or mode of transmission; Dynamo motor conversion with two
independent circuits for long distance transmission; Alternating
current transmission; Includes a disclaimer; Economic;
Efficient.
U.S. Patent
0,382,281 - Electrical Transmission of Power - 1888 May 1 -
Improvements in electromagnetic motors and their mode or methods of
their operations; Motor is wound with coils forming independent
circuits on the armature; Armature is mounted to rotate between two
different poles; Armature will eventually synchronize with that of
the generator; Windcoils or coils on the field magnets; Expose to
continuous current to maintain a permanent field.
U.S. Patent
0,382,282 - Method of Converting and Distributing Electric Currents
- 1888 May 1 - Related to electric distribution systems; Current is
from a single main source or suitable transmitting circuit;
Induction into an independent circuit; Divide the current from a
single source; Transformations; Discovery of method to avoid prior
liable and dangerous methods; True Dynamic induction.
U.S. Patent
0,382,845 - Commutator for dynamo electric machines - 1888 May 15 -
Relates to dynamo-electric machines or motors; Improvements on
devices to collect or communicate currents; Avoids destruction and
wear of machine; Avoid adjustments due to destruction and wear;
Enable practical construction of very large dynamo electric
machines or motors with the minimum number of communicator
segments; Increases safety and efficiency.
U.S. Patent
0,390,413 - System of electrical distribution - 1888 October 2 -
Related to previous electric distribution systems developed by
Tesla; Examples of systems in operation with motors or converters,
or both, in parallel; Examples of systems in parallel; Examples of
systems in series.
U.S. Patent
0,390,414 - Dynamo Electric Machine - 1888 October 2 - Related to
the patents of Tesla and Charles F. Peck, numbers: US381968 and
US382280; Ordinary forms of continuous and alternate current
systems may be adapted to Tesla's system, with slight changes to
the systems; Effects their forms; Only the best and most practical
solutions are presented to the three most common forms of the
devices applicable; Illustrated are the continuous (or closed)
circuit machines, machines possessing armatures with coils
connected diametrically (known as "open-circuits"), and machines
with armature-coils of which have a common joint.
U.S. Patent
0,390,415 - Dynamo Electric Machine or Motor - 1888 October 2 -
Improvement in the construction of dynamo or magneto electric
machines; Novel form of frame and field magnets that renders the
machine more sturdy and compact as a structure; Requires fewer
parts; Less difficulty in construction; Lower expense; Useful to
alternating and continuous current machines.
U.S. Patent
0,390,721 - Dynamo Electric Machine - 1888 October 9 - Relates
chiefly to the alternate current machine invented by Mr. Tesla;
Related to patents numbered US381968 and US382280; Seeks to avoid
mechanical drawback of running high frequency machines; Efficient
at low speeds; Producing rotating magnetic poles in one element of
the machine and drive the other at a different speed.
U.S. Patent
0,390,820 - Regulator for Alternate Current Motors - 1888 October 9
- Improvement in the electrical transmission systems; Means of
regulating and power of the motor or motors; Used with system of
multiple motors primarily (or systems with motors and transformers)
that have independent energizing circuits which act to set up
progressive or shifting magnetic poles (i.e. the rotating magnetic
field); Controls the speed of the motor.
U.S. Patent
0,396,121 - Thermo Magnetic Motor - 1888 January 15 - Widely known
that heat applied to a magnetic body will lessen its magnetizing
ability; High enough temperatures will destroy the magnetic field;
Mechanical power by a reciprocating action obtained from the joint
action of heat, magnetism, and a spring or weight (or other force);
In this patent, the application of heat to a body that is
magnetized by induction or otherwise to the action of heat until
the magnetism is neutralized to allow a weight or a spring to give
action and lessen the action of the heat to restore the magnetic
effect to move the body in the opposite direction.
Tesla's
US390721 Patent for a "Dynamo Electric Machine"
U.S. Patent
0,401,520 - Method of Operating Electro Magnetic Motors - 1889
April 16 - Improvements to previous instances of synchronous
motors; Previous instances of synchronous motors have not been
started by the alternating current generators; New discovery of
simple method or plan of operating such motors; Requires no other
device other than the motor itself; Conversion from a double
circuit motor and which will start under the actions of an
alternate current into a synchronizing-motor; synchronous motor
definition.
U.S. Patent
0,405,858 - Electro Magnetic Motor - 1889 June 25 - Torque, instead
of being the result in the difference in the magnetic periods or
phases of the poles or to the attractive parts to whatever due, is
produce to the angular displacement of the parts which, though
movable with the respect to one another, are magnetized
simultaneously, or approximately so, by the same currents; Concerns
the armature and the field laminations of the magnetic core for the
greatest magnetic attractions; Best means to achieve these
results.
U.S. Patent
0,405,859 - Method of Electrical Power Transmission - 1889 June 25
- New and useful method of bringing up the motor to a desirable
speed; Forms of alternating current machines, connected to
alternating current generators, can be run as synchronous motor;
Prior, alternating current will not start it; Construct a generator
with two coils or sets of coils and connect them with a motor of
corresponding coils or sets of coils; By means of two line wires,
the motor and generator in like fashion; Related to US 390413 (for
means of starting); Will operate as a single-circuit synchronizing
system.
U.S. Patent
0,406,968 - Dynamo Electric Machine - 1889 July 16 - Relates to
class of machines referred to as "Unipolar" machine (i.e., a disk
or cylindrical conductor is mounted in between magnetic poles
adapted to produce a uniform magnetic field); Construction of a
machine with two fields, each having a rotary conductor mounted
between its poles; Discussed the disk form primarily; The direction
of the magnetism or order of the poles in one field of force is
opposite to that of the other, so the rotation of the disk in the
same direction forms a field from the center to the circumference
and another from the circumference to the center; Contacts applied
to the shafts form terminals of a circuit to produce a sum of
electromotive forces of the two disks; If direction of the fields
are the same, driving the disks in the opposite direction will
obtain the same results.
U.S. Patent
0,413,353 - Method of Obtaining Direct current from Alternating
Currents - 1889 October 22 - Superiority of alternating currents
discussed; Delineates machines to convert alternating currents to
direct (or continuous) currents at will at one or more points;
Obtain direct currents from alternating currents; Active
resistances to opposite electrical character, whereby the currents
or current-waves of opposite character will be diverted through
different circuits.
U.S. Patent
0,416,191 - Electro-Magnetic Motor - 1889 December 3 - Induction
motor with two or more energizing circuits; alternating currents of
differing phases are passed to produce rotation or operation of the
motor; simple way consists of two circuits; alternate way consists
of one line that divides the alternating current in the motor
circuit and effects an artificial lag in one of the circuit of
branches (such as by a different induction capacity).
U.S. Patent
0,416,192 - Method of Operating Electro-Magnetic Motors - 1889
December 3 - Related to US401520; Alternative improvements to
synchronous motors; Torque and synchronous actions in motors;
different field circuit of differing induction; Windings and
shunts; Increases tendency to synchronize.
U.S. Patent
0,416,193 - Electro-Magnetic Motor - 1889 December 3 - Induction
motor operation with two or more windings; securing differing phase
differences; Phase proportional to the induction and inverse to the
resistance encountered by the current; one circuit (the energizing
circuit) should have high induction and low resistance (along with
possessing the greater length or number of turns) and the converse
in the other (which has few turns of finer wire or wire that has
higher resistance); magnetic quantities of the poles should be
approximately equal; Self-induction cores are much longer.
U.S. Patent
0,416,194 - Electric Motor - 1889 December 3 - Drawings include the
motor seen in many of Tesla's photos; Classic alternating current
electro-magnetic motor; Induction motor operation; Field and
armature of equal strengths or magnetic quality; field and armature
cores of equal amounts; Coils containing equal amount of
copper.
U.S. Patent
0,416,195 - Electro-Magnetic Motor - 1889 December 3 - Induction
motor operation with two or more windings; Differing phases;
Structural and operational conditions; Armature operation
conditions and the obedience to the energizing circuit and stator;
Construction and organization principles.
U.S. Patent
0,417,794 - Armature for Electric Machines - 1889 December 24 -
Construction principles of the armature for electrical generators
and motors; Simple and economical; Coils of insulated conducting
wire (or ribbon) may be wound or formed into bobbins; Position of
the bobbins dictate the windings; Armature has polar projections
and maximum core-surface exposure to the field magnetic poles;
Related to other applicant patents, numbers US327797, US292077,
GB9013.
U.S. Patent
0,418,248 - Electro-Magnetic Motor - 1889 December 31 - Electric
generator; Employment of an artificial cooling device; Enclosing
the source of heat and that portion of the magnetic circuit exposed
to the heat and artificially cooling the said heated part;
Combination of an enclosed source of heat applied to a portion of
said core; Magnetized core or body and a conductor within the field
of force; Artificial cooling device for reducing the temperature of
the heated portion thereof; Means for bringing a cooling gas or
fluid in contact with the heated portion of the core, and means for
controlling the admission of the same; The combination and coils
wound thereon and a connection with a boiler for admitting steam
into the channels, as set forth; Magnetized core containing
passages or channels; Means for applying heat to a portion of the
core.
U.S. Patent
0,424,036 - Electro-Magnetic Motor - 1890 March 25 - Cites then
common language of his motors referred to as the "magnetic lag"
motors; Another form of the induction motor with two or more
energizing circuits with differing phase differences are passed to
produce rotation or operation of the motor; Magnetism lags
electrical parts of energizing effects; Manifests these effect
simultaneously and not successively; Related to US405858; Torque is
produced to the angular displacement of parts; Best means to
achieve these results; prefer the use of alternating currents.
Tesla working
in his laboratory
U.S. Patent
0,428,057 - Pyromagneto Electric Generator - 1890 May 13 - Electric
generator; Employment of an artificial cooling device; Enclosing
the source of heat and that portion of the magnetic circuit exposed
to the heat and artificially cooling the said heated part;
Combination of an enclosed source of heat applied to a portion of
said core; Magnetized core or body and a conductor within the field
of force; Artificial cooling device for reducing the temperature of
the heated portion thereof; Means for bringing a cooling gas or
fluid in contact with the heated portion of the core, and means for
controlling the admission of the same; The combination and coils
wound thereon and a connection with a boiler for admitting steam
into the channels, as set forth; Magnetized core containing
passages or channels; Means for applying heat to a portion of the
core.
U.S. Patent
0,433,700 - Alternating-Current Electro-Magnetic Motor - 1890
August 5 - Rotation of an electromagnetic motor is produced by the
magnetic movements or the maximum of the pole's (or point's)
magnetic effects from the conjoined actions (or the two energizing
circuits) through which alternating currents (or similar
rapidly-varying currents) are passed through; Multiple magnets are
powered by artificial currents; Inverse strength of magnetism on
stator for best rotation; Creates multiple phases through one
circuit from one power source.
U.S. Patent
0,433,701 - Alternating-Current Motor - 1890 August 5 - Two sets of
field-pole pieces of energized independently by the same source;
Closed magnetic iron shunts or bridges in sets or series.
U.S. Patent
0,433,702 - Electrical Transformer Or Induction Device - 1890
August 5 - Main magnetic core and the primary and secondary coils
interposed by a magnetic shield or screen between the coils or
around one of the coils; Coils can be wound upon or built up around
the magnetic shield; Adapted to or capable of being magnetically
saturated by a predetermined current strength below the maximum in
the primary.
U.S. Patent
0,433,703 - Electro-Magnetic Motor - 1890 August 5 - Describes the
combination, in an alternating current motor, of an energizing coil
and a core composed of two parts (one being protected from
magnetization from the other one interposed between it and the
coil); A rotating armature is motivated by the induced fields;
Alternatively, a field magnet composed of a coil and core (with two
sections in proximity of the coil and an inner section between the
same); Also, a field magnet each composed of a coil and core (with
two sections in proximity of the coil and an inner section between
the same).
U.S. Patent
0,445,207 - Electro-Magnetic Motor - 1891 January 27 - Describes
the combination, in a motor, of a primary energizing circuit
(connected to a generator) and a secondary circuit in inductive
relation to the primary; Each circuit has a different electrical
character, resistance, induction capability, or number and type of
windings.
U.S. Patent
0,447,920 - Method of Operating Arc-Lamps - 1891 March 10 - Abate
or render inaudible sound emitted by arc lamps that are powered by
(or supplied with) alternating currents by increasing the frequency
of alternations (or pulsations) above the auditory level.
U.S. Patent
0,447,921 - Alternating Electric Current Generator - 1891 March 10
- A generator that produces alternations of 15000 per second or
more.
454622 -
System of Electric Lighting: Apparatus devised for the purpose of
converting and supplying electrical energy in a form suited for the
production of certain novel electrical phenomena; Used later as a
practical RF power supply.
U.S. Patent
0,454,622 - System of Electric Lighting - 1891 June 23 - Apparatus
devised for the purpose of converting and supplying electrical
energy in a form suited for the production of certain novel
electrical phenomena, which require currents of higher frequency
and potential. It specifies an energy storage capacitor and
discharger mechanism on the primary side of a radio-frequency
transformer. This is the first-ever disclosure of a practical RF
power supply capable of exciting an antenna to emit powerful
electromagnetic radiation.
U.S. Patent
0,455,067 - Electro-Magnetic Motor - 1891 June 30 - Alternating
current motor, with field magnets and energizing circuit
armature-circuit and a core adapted to be energized by currents
induced in its circuit by the currents in the field circuit;
Condenser connected with or bridging the armature-circuit (e.g.,
the rotating element of the motor); Energizing circuit formed by
coils wound thereon in a different inductive relations to the field
and joined in a continuous or closed series; Combination of a
condenser, the plates of which are connected, respectively, to the
junctions of the circuits or coils.
U.S. Patent
0,455,068 - Electrical Meter - 1891 June 30 - Method of computing
the amount of electrical energy expended in a given time in an
electrical circuit; Operates by maintaining by the current a
potential difference between two conductors in an electrolytic
solution (or cell) uniform throughout the whole extent of such
conductors exposed to the solution; Measurement of the variation of
the resistance in one or both conductors dues to the gain or loss
of metal by electro-deposition; Electrolytic cell and conductors
passing through the cell and connected in series with a translating
device; One or more resistances connected with the conductors and
cell for establishing a potential difference between the two
conductors through the solution of the cell; Tubular cell contains
electrolytic solution and closed at each end.
U.S. Patent
0,455,069 - Electric Incandescent Lamp - 1891 June 30 -
Incandescent lamp consisting of two isolated refractory conductors
contained in a non-striking vacuum and adapted to produce light by
incandescence; Globe or receiver exhausted to the non-striking
point with two mounted isolated bodies (or metal wires) of
refractory conducting material to emit light and sealed in;
Terminal to connect with an electrical energy source; Refractory
conducting material not to be rendered incandescent coated or
covered with insulation.
U.S. Patent
0,459,772 - Electro-Magnetic Motor - 1891 September 22 -
Alternating current non-synchronizing electric motor coupled with a
synchronizing alternating current motor whereby the former starts
the latter and throws it into synchronism with its actuating
current; Switch mechanism for directing the current through either
or both of the motors; Combination of two motors (one an
alternating current torque motor [e.g., shifting poles via the
energizing circuit] and the other a synchronizing alternating
current motor) the armatures of which are mounted upon the same
shaft; Switching circuit directing the alternating current or
currents through the several circuits of one motor or the single
circuit of the other.
U.S. Patent
0,462,418 - Method of and Apparatus for Electrical Conversion and
Distribution - 1891 November 3 - Apparatus devised for the purpose
of converting and supplying electrical energy in a form suited for
the production of certain novel electrical phenomena which require
currents of higher frequency and potential.
U.S. Patent
0,464,666 - Electro-Magnetic Motor - 1891 December 8 - Alternating
current motor provided with two or more energizing or field
circuits; One circuit connected to current source and the other (or
others) in inductive relation thereto; One circuit connected to
alternating currents and the other constituting high potential
secondary circuit; Condenser interposed in the inductive
circuit.
U.S. Patent
0,464,667 - Electrical Condenser - 1891 December 8 - Electrical
condenser composed of plates or armatures immersed in oil; Plates
or armatures can be adjustable.
[edit]Patents
#51–#100
U.S. Patent
0,487,796 - System of Electrical Transmission of Power - 1892
December 13 - Alternating current generator consisting of
independent armature-circuits formed by conductors alternately
disposed; Currents developed differ in phase and the field magnet
poles in excess of the number of armature-circuits; Motor having
independent energizing circuits connected to the armature-circuit
of the alternating current generator; Rotating magneto-electric
machine yielding a given number of current impulses or alterations
for each turn or revolution; Poles which in number are less than
the number of current impulses produced in each motor-circuit by
one turn or revolution; Multipolar alternating-current machine.
U.S. Patent
0,511,559 - Electrical Transmission of Power - 1893 December 26 -
Method of operating motors having independent energizing circuits;
Passing alternating currents through circuits and retarding the
phases of the current in one circuit to a greater extent; Directing
alternating currents from a single source through both circuits of
a motor and varying or modifying the relative resistance or
self-induction of motor circuits, producing in currents differences
in phases.
U.S. Patent
0,511,560 - System of Electrical Power Transmission - 1893 December
26 - Motor having independent energizing circuits connected with a
source of alternating currents; Means of rendering the magnetic
effects to said energizing circuit of difference phase; Armature
within the influence of the energizing circuit; Energizing circuits
connected in derivation or multiple arc and of different active or
variable resistance (or self-inductance); Pairs of mains connected
and a multiple circuit differential phase; Change of time-period of
currents passing through an electro-motive phase-changing device
interposed between the mains and the destination; Includes a
correction.
U.S. Patent
0,511,915 - Electrical Transmission of Power - 1894 January 2 -
Method of operating electro-magnetic motors; Passing alternating
currents through one of the energizing circuits and inducing by
such current in the other energizing circuit or circuits of the
motor.
U.S. Patent
0,511,916 - Electric Generator - 1893 August 19 - Combination with
the piston or equivalent element of an engine which is free to
reciprocate under the action thereon of steam or a gas under
pressure, of the moving conductor or element of an electric
generator in direct mechanical connection; Engine and generator
being adjusted by their relative adjustment with respect to period
to produce currents of constant period; Electric generator having
inducing or induced elements one of which is capable of oscillation
in the field of force, the movable element being carried by the
piston rod of the engine; Relation as to respect of period of
electrical vibration will not disturb the period of the engine;
Cylinder and piston reciprocating by steam or gas under pressure of
a spring maintained in vibration by the movement of the piston, and
the electric generator, the movable conductor or element of which
is connected with the piston; Method of constructing and adapting
elements; Imparting the oscillation of an engine to the moving
element of an electric generator and regulating the period of
mechanical oscillation by adjustment of the reaction of the
electric generator.
512340: Coil
for Electro-Magnets; Example of one of the first bifilar coils.
Electrical
conductor, 514167; Early example of coaxial cable.
U.S. Patent
0,512,340 - Coil for Electro-Magnets - 1893 July 7 - Effect of
mutual relation self-induction exploited; Adjacent coil
convolutions formed parts exists so that the potential difference
is sufficient to neutralize negative effects; Object to avoid
expensive, cumbersome, and difficult condensers; Bifilar coil
winding technique.
U.S. Patent
0,514,167 - Electrical Conductor - 1894 February 6 - Prevent loss
in line conductors; Insulate and encase conductors with a sheathing
which is connected to the ground; Sheath or screen; Coaxial
cabling.
U.S. Patent
0,514,168 - Means for Generating Electric Currents - 1894 February
6 - Generating and utilizing electrical energy discovered by Mr.
Tesla; related to US454622 and US462418; Maintenance of
intermittent or oscillatory discharges of a condenser of suitable
circuit containing translating devices; Discharges take place in
insulating liquids (such as oil); Varying spark gap distances; Keep
circulating flow in liquid; Illustrates preferred manner.
U.S. Patent
0,514,169 - Reciprocating Engine - 1893 August 19 - Provide a means
of engines, which under the applied forces such as elastic tension
of steam or gas under pressure, that will yield constant
oscillatory movements (in wide limits); Function is constant
irrespective of the loads, frictional losses, or other factors
(which degrade other engines); Convert pressure into mechanical
power; Better at higher temperatures and pressures than previous
engines; Same principles of this engine appear later in the modern
gasoline motors of automobiles; often cited by enthusiasts as a
version of the "earthquake machine."
U.S. Patent
0,514,170 - Incandescent Electric Light - 1894 February 6 - Related
to US454622; Incandescent electric lamps; Particular forms of the
lamp in which a light giving small body or button of refractory
material is supported by a conductor entering a very highly
exhausted globe or receiver; Conducting screen surrounds the
supporting conductor; Single node vacuum tube.
U.S. Patent
0,514,972 - Electric Railway System - 1894 February 20 - Utilizes
high potentials and high frequencies; Insulated and screened supply
conductor along the line of travel; Induction bar or plate in
inductive relation to the screened conductor and an electrical
connection to the motor.
U.S. Patent
0,514,973 - Electrical Meter - 1894 February 20 - Method of
measuring the amount of electrical energy expended in a given time
in an electric circuit of alternating currents; High tension
discharge through a rarefied gas between two conductors; Computing
from the amount of the particles thrown off from the conductors or
one of the same by action of the discharge of the energy expended;
Primary coil in series with a translating device; High tension
secondary; Two carbon conductors sealed in an exhausted receiver
and coated with an insulating material on three sides, one terminal
of each conductor being connected to a terminal of a secondary.
U.S. Patent
0,517,900 - Steam Engine - 1893 December 29 - Cylinder and
reciprocating piston (with a spring) and controlling slide valve of
an engine adapted to be operated by steam or a gas system under
pressure of an independently controlled engine of constant period
operating the said valve.
U.S. Patent
0,524,426 - Electromagnetic Motor - 1894 August 14 - Alternating
current motor with energizing coils adapted to be connected with an
external circuit of cores of different magnetic susceptibility so
as to exhibit differences of magnetic phase under the influence of
an energizing current; Rotary armature of magnetic poles and coils
adapted to be connected with the external circuit surrounding the
same; Cores constructed of different size, length, mass, or
material whereby their magnetic phase will differ in time.
U.S. Patent
0,555,190 - Alternating Motor - 1896 February 25 - Related to
US381968 and US382280; Mode and plan of operating electric dynamic
motor generators by progressive shifting; Magneto-electric machine;
Dynamo motor conversion with two independent alternating current
circuits; Transmission of energy; Rotating magnetic field
principles.
567818:
Electrical Condenser; Examples of improved capacitors.
U.S. Patent
0,567,818 - Electrical Condenser - 1896 September 15 - Condenser
constructed or provided with means for exclusion of air or gas;
Armature composed of a conducting liquid; Armatures in two separate
bodies of conducting liquid insulated electrically and contained in
a receptacle; Insulating liquid seal on the surface of the
conductive liquids.
U.S. Patent
0,568,176 - Apparatus for Producing Electrical Currents of High
Frequency and Potential - 1896 September 22 - Conversion of direct
current into currents of high frequency. Combination of high
self-inductance circuit, choking coil circuit controllers adapted
to make and break the circuit, a condenser into which the back-emf
discharges when interrupted, and a transformer through the primary
of which the condenser discharges; Motor for driving the
controller; 'Current of high electromotive force (voltage) which is
induced at each break of the main circuit (back-emf) furnishes the
proper current for charging the condenser (capacitor).'
U.S. Patent
0,568,177 - Apparatus for Producing Ozone - 1896 September 22 -
Primarily provides a simple, cheap, and effective apparatus for the
production of ozone (or such gases); Obtained by the action of
high-tension electrical discharges; Related to US462418 (November
3, 1891) and US454622 (June 23, 1891); In combination with a low
self-induction and resistance circuit of direct currents, of a
controller for making and breaking the same, a series-wound motor
included in or connected with the charging-circuit and driving the
controller; A condenser around the point of interruption in a
circuit around the controller, and a transformer through the
primary of which the condenser discharges (producing the potential
necessary for such primary discharge and the coil raises the
potential of such discharge) and which is in the discharge-circuit
of the condenser; Device for maintaining a current of air between
the discharge-surface; A fan-motor (maintaining a current of air
between the discharge-surfaces) is connected with the
charging-circuit.
U.S. Patent
0,568,178 - Method of Regulating Apparatus for Producing Electric
Currents of High Frequency - 1896 September 22 - Cited by Tesla in
"the True Wireless" (illustrated in that article as Fig. 10) in the
wireless field for the concatenated tuned circuits; regulates the
energy delivered by a system for the production of high-frequency
currents. It consists of a supply-side circuit whose current is
diverted into a charging circuit of high self-induction, a
condenser (charged by the supply circuit), another circuit (with
low self-induction) which the same discharges through (and raises
the potential of the condenser), and means for controlling the
charging and the discharging of same, the said method consisting in
varying the relation of the varying frequencies of the impulses in
the circuit comprise the system.
U.S. Patent
0,568,179 - Method of and Apparatus for Producing Currents of High
Frequency - 1896 September 22 - used in the laboratory at New York,
35 South Fifth Avenue lab for employing currents of different
phase; method for producing electric currents of high frequency,
which consists in generating an alternating current, charging a
condenser thereby during determinate intervals of each wave of said
current, and discharging the condenser through a circuit of low
self-induction; the combination with a source of alternating
current, a condenser, a circuit-controller adapted to direct the
current during determinate intervals of each wave into the
condenser for charging the same, and a circuit of low
self-induction into which the condenser discharges; the combination
with a source of alternating current, a synchronous motor operated
thereby, a charging-circuit in which the energy of said current is
stored, a circuit-controller operated by the motor and adapted to
interrupt the charging-circuit through the motor at determinate
points in each wave, a condenser connected with the motor-circuit
and adapted on the interruption of the same to receive the
accumulated energy stored therein, and a circuit into which the
condenser discharges.
U.S. Patent
0,568,180 - Apparatus for Producing Electrical Currents of High
Frequency - 1896 September 22 - an isochronous mechanical break
used in the laboratory at New York, 35 South Fifth Avenue lab for
employing currents of different; patent covers possible variations
within Tesla's wireless systems; a combination with a source of
alternating current, of a condenser adapted to be charged thereby,
a circuit into which the condenser discharges in a series of rapid
impulses and in synchronism with the source, and a
circuit-controller for effecting the charge and discharge of said
condenser, composed of a set of sub-divided conductors (a pair of
angularly-adjustable terminal and two or more rotating conductors)
moveable into and out of proximity with (e.g., passing by) each
other, whereby a spark may be maintained between them and the
circuit closed thereby during determined intervals.
U.S. Patent
0,577,670 - Apparatus for Producing Electric Currents of High
Frequency - 1897 February 23. Two input circuits are each pulsed
with a 25% duty cycle. Additionally, the brushes are phased so that
the on states (discharges) never overlap. The output circuit has a
toggled 50% output duty cycle, double the duration of the input
pulse. Resultant back-emf is rectified to capacitors, and fed
through a Tesla coil to a load.
U.S. Patent
0,577,671 - Manufacture of Electrical Condensers, Coils and Similar
Devices - 1897 February 23 - Improvements of condensers,
transformers, self-induction coils, rheostats, and other similar
devices; Used in areas where currents of high potentials are
brought into close proximity; Method of excluding gas or air from
the dielectric environment of such devices; Insulated material
rendered fluid by heat; Material permeated the interstices of
device and held under pressure; Material cooled and solidified
under pressure.
U.S. Patent
0,583,953 - Apparatus for Producing Currents of High Frequency -
1897 June 8 - Related to US568176; Conversion of electrical current
of ordinary character into high frequency and high potential; Can
use either continuous (i.e., direct) or alternating currents.
U.S. Patent
0,593,138 - Electrical Transformer - 1897 November 2 - Novel form
of transformer or induction-coil and a system for the transmission
of electrical energy by means of the same; Improvement of
electrical transformers; Develops electrical currents of high
potential; Corrects construction principles heretofore
manufactured; Higher potential for transmission than has ever been
practically employed heretofore; Free from the danger of injury
from the destruction of insulation; Safe to handle; High-frequency
power supply for lighting and other applications.
U.S. Patent
0,609,245 - Electrical Circuit Controller - 1898 August 16 - A
circuit controller (see also 609245, 609246, 609247, 609250,
609251, 611719); Conductive fluid make and break circuit; Nozzle
and conductor construction and their relative method of operation;
Single source of power for operation; Nozzle and receptacle
interaction; Combination of rotating receptacle and motor, a
magnetic body in receptacle, and an exterior mounted magnetic
body.
U.S. Patent
0,609,246 - Electric Circuit Controller - 1898 August 16 - A
circuit controller (see also 609245, 609246, 609247, 609250,
609251, 611719); Conductive fluid make and break circuit;
Conductive liquid forming terminals; Two orifices with relative
movement that can direct jets or streams; Two insulated
compartments; Jets or streams are brought into intermittent
contact.
U.S. Patent
0,609,247 - Electric Circuit Controller - 1898 August 16 - A
"circuit controller in which an independently-mounted terminal
operated in a similar manner by a rotating body of conducting fluid
may be enclosed within a gas-tight receptacle"; Conductive fluid
make and break circuit; A combination of a closed receptacle
containing a fluid, a method to rotate said receptacle, a mounted
support, means for opposing or preventing the mount's movement in
the same direction of the receptacle, and a terminal conductor in
the support; Terminal capable of rotating about its axis or
provided with rotating contacts; Fluid comprises the opposite
terminal; Eccentric weight to a spindle; Rotating terminal
connected with spindle; Receptacle mounted to rotate about an axis
inclined to the vertical; Spindle inside receptacle; Weighted
armature; Fluid is displace by centrifugal force.
U.S. Patent
0,609,248 - Electric Circuit Controller - 1898 August 16 - A
circuit controller (see also 609245, 609246, 609247, 609250,
609251, 611719) in which one terminal body moves through jets or
streams intermittently and intercepts jets or streams; Conductive
fluid make and break circuit; Rotary conductor; One terminal body
moves through jets or stream intermittently and intercepts jets or
streams; One rigid terminal receives directed jets or streams;
Combination in a receptacle of a conducting disk and an insulated
disk; Stationary tube or duct to direct jets or streams toward the
conductor across the path of intermittent projections.
U.S. Patent
0,609,249 - Electric Circuit Controller - 1898 August 16 - A
circuit controller (see also 609245, 609246, 609247, 609250,
609251, 611719); Conductive fluid make and break circuit;
Combination in a circuit controller with a closed rotary
receptacle, of a rigid conductor mounted in the same and through
which the circuit is intermittently established, and means for
directing a jet of stream of a fluid which is contained in the
receptacle, against the said body so as to affect its rotation
independently of the receptacle; Rotary receptacle of a body or
part mounted within the receptacle and concentrically mounted
therewith, a conducting-terminal supported by said body and capable
of rotation of the receptacle so as to oppose, by gyroscopic
action, the rotation of the support, and means for directing a jet
of conducting fluid against said terminal; A rotary receptacle of a
support for a conductor mounted thereon concentrically with the
receptacle and a gyrostatic disk carried by the support and
adapted, when rotating, to oppose its movement in the direction of
the rotation of the receptacle.
U.S. Patent
0,609,250 - Electrical Igniter for Gas Engines - 1898 August 16 -
Ignition system principles used today in automobiles; Operation of
a machine that requires a spark, flame, or any other similar
effect; More certain and satisfactory for use of and control by the
machine or apparatus; Charging and discharging a condenser through
switch or commutator.
U.S. Patent
0,609,251 - Electric Circuit Controller - 1898 August 16 - A
circuit controller (see also 609245, 609246, 609247, 609250,
609251, 611719). Circuit comprising, in combination, a receptacle
containing fluid, means for rotating the receptacle, and a terminal
supported independently of the receptacle and adapted to make and
break electric connections; Receptacle contains a conductive and
non-conductive fluid; Means of rotating the receptacle; Terminal
adapted to make and break electrical connection with the conductive
fluid within or under the non-conductive fluid.
U.S. Patent
0,611,719 - Electrical Circuit Controller - 1898 October 4 - A
circuit controller (see also 609245, 609246, 609247, 609250,
609251, 611719). Conductive fluid make and break circuit; The
combination of a closed receptacle, of a circuit controller
contained therein, and surrounded by an inert medium under
pressure; Method of maintaining an inert atmosphere under pressure;
Vessel containing a liquefied inert gas and method of communicating
with the interior of the receptacle; One terminal is of a
conductive fluid (such as mercury); Combination of conductors of
series of conductors constituting one terminal of a circuit
controller, means of maintaining a stream or jet of conductive
fluid as the other terminal with which the conductor makes
intermittent contact; Close receptacle containing terminal; Method
of excluding oxygen from terminals; Motive device for rotating
conductors; Force-pump in direct connection with conductor for
maintaining a circulation of conducting fluid contained in the
receptacle through the nozzle or nozzles; Rotating screw with
conductor and extending into a well in which the fluid collects;
Duct or ducts leading from the well to points from which the fluid
will be direct against the rotating conductor; Magnetic core
mounted on spindle.
U.S. Patent
0,613,735 - Electric Circuit Controller - 1898 November 8 - A
circuit controller (see also 609245, 609246, 609247, 609250,
609251, 611719). Conductive fluid make and break circuit;
Combination with rigid and fluid conductors adapted to be brought
intermittently into contact with each other; Means for imparting
rotary motion to rigid and fluid conductors; Means to rotate by the
movement of a fluid conductor.
U.S. Patent
0,613,809 - Method of and Apparatus for Controlling Mechanism of
Moving Vehicle or Vehicles - 1898 July 1 - Tesla "Boat" patent;
First logic gate; Art of controlling the movements and operation of
a vessel or vehicle at a distance; Electromagnetic waves conveyed
to vessel by the natural media and rendering by their means the
controlling-circuit active or inactive; New and useful improvements
in methods of and apparatus for controlling from a distance;
Solution for controlling from a given point the operation of
mechanisms; No intermediate wires, cables, or other form of
electrical or mechanical connection with the object save the
natural media in space; explanation of most practical and effectual
method and apparatus; Remote control.
System of
Transmission of Electrical Energy
U.S. Patent
0,645,576[4] - System of Transmission of Electrical Energy - 1900
March 20 - Commonly referred to as the radio patent; Related to
wireless telegraphy; Wireless transmission of electric power
through the natural media; Cites well known radiant energy
phenomena and the experiments of William Crooke; Corrects previous
errors in theory of behavior when used by the methods and means of
Mr. Tesla; Discovery of highly important and useful facts which
heretofore have been unknown; Deprive dialectic of air when
impressing electromotive forces of a certain character and
magnitude unto it; Conductivity of the air increases with the
augmentation of the pressure and the rarefaction; Law of
conductivity of the air is quite different from heretofore
established; Illustrations of the facts.
U.S. Patent
0,649,621[5] - Apparatus for Transmission of Electrical Energy -
1900 May 15 - Related to US645576; New and useful combinations
employed; Transmitting coil or conductor arranged and excited to
cause currents or oscillation to propagate through conduction
through the natural medium from one point to another remote point
therefrom and a receiver coil or conductor of the transmitted
signals; Production of currents of very high potential;
Transmitting station and receiving station.
U.S. Patent
0,655,838 - Method of Insulating Electric Conductors - 1900 October
23 - Method and practical application of insulation by freezing and
solidification; Expounding on Faraday's hypothesis of freezing
substances make them possess a higher dielectric level to insulate
transmission conductors; Improvements in the method set out by
Faraday; Method of insulating electrical conductors which consist
in surrounding or supporting said conductors by a material which
acquires insulating properties when frozen or solidified; Method of
maintaining a conductor within a gaseous cooling agent by the
continuous application of said agent; Trough or conduit with
circulating cooling agents; Reissued as U.S. Patent RE11,865.
U.S. Patent
0,685,012 - Means for Increasing the Intensity of Electrical
Oscillations - 1900 March 21 - A method for producing a "great
increase in the intensity and duration of the (electrical)
oscillations excited in a freely-vibrating or resonating circuit by
maintaining the same at a low temperature". Producing increase
intensity and duration of electric oscillations; Combination of a
circuit to possess freely-vibrating excitations and of means for
artificially cooling the circuit to a low temperature; Low
temperature resonating circuit; Uses of electrical impulse
oscillations; A circuit upon which oscillations are impressed, and
which is adapted to vibrate freely, in combination with a
receptacle containing an artificial refrigerant in which the
circuit is immersed; Low resistance oscillators in a series of
transmitting and receiving circuits in a system for the
transmission of energy.[6]
U.S. Patent
0,685,953 - Apparatus for Utilizing Effects Transmitted from a
Distance to a Receiving Device through Natural Media - 1899 June 24
- Heinriech Hertz methods cited; Induction method cited; Ground
conduction method cited; Previous methods had limitations that
result in great disadvantages for utilization; Wireless
transmission developed by Tesla cited; Transmitting station coil
arranged and excited to cause arbitrary or intermitted oscillation
propagation to another remote point receiver station coil; Air is
an excellent insulator; Air strata used for means of conduction for
production of generating actions at a distance; Use of metallic
conductor; Transmitting apparatus of signals or intelligence should
produce effect as strong as possible; Charge a condenser or
capacitor to utilize the potential energy.
U.S. Patent
0,685,954 - Method of Utilizing Effects Transmitted through Natural
Media - 1899 August 1 -Utilizing effects or disturbances
transmitted through the natural media, which consists on charging a
storage device with energy from an independent source, controlling
the charging of said device by the actions of the effects or
disturbances (during succeeding intervals of time determined by
means of such effects and disturbances corresponding in succession
and duration of the effects and disturbances), and coincidentally
using the stored energy for the operating a receiving device;
Independent source may be at a distant transmitting electrical
energy; Receiving device circuit discharges the accumulated stored
energy (which may be potential energy) and causing variations in
resistance in a circuit including an independent source of
electricity and a storage device; Effecting the storage (such as,
in a condenser) during any desired time interval and under control
of such effects of disturbances; Accumulated energy may operate a
transformer (by discharging through a primary circuit at
predetermined times) which, from the secondary currents, operate
the receiving device.
U.S. Patent
0,685,955 - Apparatus for Utilizing Effects Transmitted From A
Distance To A Receiving Device Through Natural Media - 1899 June 24
- An apparatus for transmitting signals or intelligence through the
natural media from a sending station to a distant point the
combination of a generator or transmitter adapted to produce
arbitrarily varied or intermitted electrical disturbances or
effects in the natural media, and for utilizing electrical effects
or disturbances transmitted through the natural media, the
combination with a source of such effects of disturbances of a
charging-circuit adapted to be energized by the action of such
effects or disturbances, between which a difference of potential is
created by such effects or disturbances, a storage device included
in the charging-circuit and adapted to be charged thereby, a
receiver, a means for commutating, directing, or selecting the
current impulses in the charging circuit so as to render them
suitable for charging the storage device, a device for closing the
receiving-circuit, means for causing the receiver to be operated by
the energy accumulated in the storage device at arbitrary intervals
of time when connecting the receiving-circuit with the storage
device for periods of time predetermined as to succession and
duration, and means for discharging the storage device through the
receiving-circuit at arbitrary intervals of time.
U.S. Patent
0,685,956 - Apparatus for Utilizing Effects Transmitted through
Natural Media - 1899 August 1 - Related to his Magnifying
Transmitter; Used as part of Tesla's Colorado Spring receivers that
posed a distributed high-Q helical resonators, radio frequency
feedback, crude heterodyne effects, and regeneration techniques; an
apparatus for transmitting signals or intelligence through the
natural media from a sending station to a distant point the
combination of a generator or transmitter adapted to produce
arbitrarily varied or intermitted electrical disturbances or
effects in the natural media; combination of a source of
electricity, a transformer, a device normally of high resistance
but adapted to have its resistance reduced when acted upon by the
effects or disturbances, with a receiving circuit connected with a
condenser and a deceived adapted to open and close the receiving
circuit at predetermined intervals of time.
US685957 :
Utilization of Radiant Energy
U.S. Patent
0,685,957 - Apparatus for the Utilization of Radiant Energy - 1901
November 5 - 4 illustrations; Radiation charging and discharging
conductors; Radiations considered vibrations of ether of small
wavelengths and ionize the atmosphere; Radiant energy throws off
with great velocity minute particles which are strongly
electrified; Rays or radiation falling on insulated-conductor
connected to a condenser (i.e., a capacitor), the condenser
indefinitely charges electrically; Radiation (or radiant energy)
include many different forms; Related to US577671; Transmitted or
natural energy can be used; Photoelectric stepping alternating
current motors.[7]
U.S. Patent
0,685,958 - Method of Utilizing of Radiant Energy - 1901 November 5
- 2 illustrations; Ways of using radiation charging and discharging
conductors; Rays or radiation falling on insulated-conductor
connected to a condenser (i.e., a capacitor), the condenser
indefinitely charges electrically; Radiation (or radiant energy)
include many different forms; Related to US577671; Photoelectric
stepping alternating current motors.
U.S. Patent
0,723,188 - Method of Signaling - 1900 July 16 - Elevated
transmitter capacitance; Coil; Earth electrode; Signal generator;
Partial basis of radio design.
U.S. Patent
0,725,605 - System of Signaling - 1900 July 16 - Elevated
transmitter capacitance; Coil; Earth electrode; Signal generator;
Apparatus of and method for electrical disturbance or impulses;
Transmission of intelligent messages; Govern the movement of
distant automata; Radio transmissions; Partial basis of radio
design.
U.S. Patent
0,787,412 - Art of Transmitting Electrical Energy through the
Natural Mediums - 1900 May 16 - Elevated transmitter capacitance;
Coil; Earth electrode; Signal generator; Apparatus for generating
and receiving electrical signals; Tuned resonant circuits; Physics
of propagation; Non-Hertzian notes; Globe as conductor; Low
frequency oscillations; Basis of radio.
U.S. Patent
1,061,142 - Fluid Propulsion - 1909 October 21 - Transmission and
transformation of mechanical power through the agency of fluid;
Propelled fluid moves in a natural path; Avoids losses; Easy;
Simple.
The
"Bladeless" turbine design, Tesla's 100th American patent.
U.S. Patent
1,061,206 - Turbine - 1909 October 21 - Improvements in rotary
engines and turbines; Mechanical power based on the vehicle of
fluid for power; Known as the Tesla turbine; Bladeless turbine
design; Utilizes boundary layer effect; Fluid does not impact the
blades as in a conventional turbine.
Patents
#101–#111
U.S. Patent
1,113,716 - Fountain - 1914 October 13 - Improvement in the
construction of fountains and aquarium displays; Large mass of
fluid in motion; Display of great power; Large displacement of
fluid with little expense of energy.
View in
elevation
Free terminal
and circuit of large surface with supporting structure and
generating apparatus
U.S. Patent
1,119,732 - Apparatus for Transmitting Electrical Energy - 1902
January 18 - High-voltage, air-core, self-regenerative resonant
transformer; Oscillator for wireless transmission of
electromagnetic energy; Tesla coil.
U.S. Patent
1,209,359 - Speed-Indicator - 1916 December 19 - Improvement that
uses the adhesion and viscosity of a gaseous medium [preferably
air] to measure speed [or measure the torque-transmission] between
indicator and driver; Durable; Simple; Inexpensive; Reliable.
U.S. Patent
1,266,175 - Lightning-Protector - 1918 May 14 - Novel and
advantageous construction of a protector in accord with the true
character of the phenomena; Corrects Benjamin Franklin's
hypothesis, and subsequent construction, for lightning
protectors.
U.S. Patent
1,274,816 - Speed Indicator - 1918 August 6 - Speedometer that
possesses the feature of: Linearly proportional torque readings;
Strong low speed torsional effects; not affected by atmospheric
density, temperature, nor magnetic influences; Rugged; Simple;
Economical.
U.S. Patent
1,314,718 - Ship's Log - 1919 September 2 - Novel and advantageous
construction of a ship's log; Instantaneous reading of knots or
miles-per-hour.
U.S. Patent
1,329,559 - Valvular Conduit - 1920 February 3 - Improvement by
means of a conduit or channel characterized by valvular action;
Conduit has baffles, recesses, projections, enlargements, or
buckets that channels the flow's movement one way more efficiently;
Mechanical diode; One-way valve with no moving parts. Now known as
a Tesla valve.
U.S. Patent
1,365,547 - Flow-Meter - 1921 January 11 - Related to the meter of
measurement for velocity and quantity of fluid flow.
U.S. Patent
1,402,025 - Frequency-Meter - 1922 January 3 - Ascertain the
periodic electric frequency and electric oscillation by the
rotation or reciprocation of an electromechanical device.
U.S. Patent
1,655,113 - Method of Aerial Transportation - 1928 January 3 - VTOL
aeroplane; Describes a method of achieved vertical take-off,
transition to and from horizontal flight, and vertical landing,
with a tilting rotor. Including transportation which consists in
developing by the propelling device a vertical thrust in excess of
the normal, causing thereby the machine to rise in an approximately
vertical direction, tilting it and simultaneously increasing the
power of the motor and thereby the propeller thrust, then gradually
reducing the propeller thrust as forward speed is gained and the
plane takes up the load, thus maintaining the lifting force
sensibly constant during flight, tilting the machine back to its
original position and at the same time increasing the power if the
motor and thrust of the propeller and effecting a landing under the
restraining action of the same.
U.S. Patent
1,655,114 - Apparatus for Aerial Transportation - 1928 January 3 -
VTOL aircraft; Includes a correction.
U.S. Patent
RE11,865 - Method of Insulating Electric Conductors - 1900 October
23 - Expounding on Faraday's hypothesis of freezing substances make
them possess a higher dielectric level to insulate transmission
conductors; Improvements in the method set out by Faraday; Method
of insulating electrical conductors which consist in surrounding or
supporting said conductors by a material which acquires insulating
properties when frozen or solidified; Method of maintaining a
conductor within gaseous cooling agent by the continuous
application of said agent; Trough or conduit with circulating
cooling agents.
AnomaliesIn
the book Tesla: Man Out of Time, there are references to missing
patents.[8] Some patents of his experiments are lost to history, as
well as some of the scientific notes and records pertaining to
Tesla's patents. These, though, are alluded to in the redacted FBI
files. The missing patents may be among effects seized by
government agents and military intelligence officers following
Tesla's death in 1943. In various patent logs, it is recorded Tesla
received U.S. Patent 613,819 for "Filings Tube" (such as Charles
Henry Sewall's "Wireless Telegraphy" (New York, 1904)).[9][10] This
number does not match the U. S. Patent office records (that patent
is issued to G. Kelly for an "Illuminating torch").
British
patent number
- name of patent - date of application - notes on patent
GB1877 -
Improvements in Electric Lamps - 1886 February 9
GB2801 -
Improvements in Reciprocating Engines and Means for Regulating the
Period of the same - 1894 February 8
GB2812 -
Improvements in Methods of and Apparatus for the Generation of
Electric Currents of Defined Period - 1894 February 8
GB2975 -
Improvements in Dynamo Electric Machines - 1886 March 2
GB6481 -
Improvements relating to the Electrical Transmission of Power and
to Apparatus therefor - 1888 May 1
GB6502 -
Improvements relating to the Generation and Distribution of
Electric Currents and to Apparatus therefor - 1888 May 1
GB6527 -
Improvements relating to Electro-motors - 1889 April 16
GB8200 -
Improvements relating to the Transmission of Electrical Energy -
1905 April 17
GB8575 -
Improved Methods of and Apparatus for Generating and Utilizing
Electric Energy for Lighting Purposes - 1891 May 19
GB11293 -
Improvements relating to the Utilization of Electromagnetic, Light,
or other like Radiations Effects or Disturbances transmitted
through the Natural Media and to Apparatus therefor - 1901 June
1
GB11473 -
Improvements in Alternating Current Electro-magnetic Motors - 1891
July 6
GB12866 -
Improvements in Electrical Circuit Controllers - 1898 June 8
GB13563 -
Improvements in, and relating to, the Transmission of Electrical
Energy - 1901 July 3
GB14550 -
Improvements relating to the Insulation of Electric Conductors -
1900 August 14
GB14579 -
Improvements in and relating to the Transmission of Electrical
Energy - 1901 July 17
GB16709 -
Improvements relating to the Conversion of Alternating into Direct
Electric Currents - 1889 October 22
GB19420 -
Improvements in Alternating Current Electro-magnetic Motors - 1889
December 3
GB19426 -
Improvements in the Construction and Mode of Operating Alternating
Current Motors - 1889 December 3
GB20981 -
Improvements relating to the Production, Regulation, and
Utilization of Electric Currents of High Frequency, and to
Apparatus therefor - 1896 September 22
GB24001 -
Improved Method of Imparting Energy to or Deriving Energy from a
Fluid and Apparatus for use therein - 1910 October 17 - Bladeless
turbine having disc rotors; Openings in the central portions and
separating star-washers; Riveted into single, solid structure;
Keyed to the shaft; Turbine or rotary engine.
GB24421 -
Improvements in Systems for the Transmission of Electrical Energy
and Apparatus for use therein - 1897 October 21
GB26371 -
Improvements in the Method of and Apparatus for Controlling the
Mechanism of Floating Vessels or Moving Vehicles - 1898 December
13
GB174544 -
Improvements in Methods of and Apparatus for the Generation of
Power by Elastic Fluid Turbines - 1921 April 1
GB179043 -
Improved Process of and Apparatus for Production of High Vacua -
1921 March 24
GB185446 -
Method of and Apparatus for Aerial Transportation - 1921 April
4
GB186082 -
Improvements in the Construction of Steam and Gas Turbines - 1921
March 24 - Two heavier end-plate; Tapered toward the periphery;
Reduces maximum centrifugal stress; Turbine.
GB186083 -
Improved Method of and Apparatus for the Economic Transformation of
the Energy of Steam by Turbines - 1921 March 24 - Improvements to
increase efficiency of steam power plants and thermo-dynamic
transformers; Producing motive power; Economical; Operable at very
high temperature; Operable with cheap fuel; Avoids deteriorating
actions previously common; System is related to the Tesla
turbine.
GB186084 -
Improved Process of and Apparatus for Deriving Motive Power from
Steam - 1921 March 24
GB186799 -
Process of and Apparatus for Balancing Rotating Machine Parts -
1921 September 2
Canadian
patent number
- name of patent - date filed - notes on patent
CA24033 -
Improvements in Dynamo Electric Machines - 1886 April 24
CA24338 -
Electric Arc Lamp - 1886 June 18
CA29537 -
Improvements in Methods of and Apparatus for the Electrical
Transmission of Power - 1888 May 1
CA30172 -
Improvements in Methods of and Apparatus for Converting and
Distributing Electric Currents - 1888 May 1
CA33317 -
Improvements in Methods and Apparatus for Converting Alternating
into Direct Currents - 1889 December 19
CA135174 -
Improvements in Fluid Propulsion - 1910 November 24 - Tesla
Pump
CA142352 -
Improvement in the Art of Transmitting Electrical Energy Through
the Natural Media - 1906 April 17
patent number
- name of patent - date of application - notes on patent
ES23742 -
Mejoras en el sistema de gobierno del mecanismo de recipientes o
barcos flotantes o vehículos móviles por medio de los aparatos que
se describen - 1899 January 31
ES26430 -
Mejoras en el aislamiento de conductores eléctricos - 1900 August
14
ES26801 -
Mejoras en el aislamiento de conductores eléctricos - 1900 November
6
ES49122 -
Mejoras introducidas en los motores actuados por fluidos - 1910
October 21
ES81244 - Un
procedimiento, con su aparato correspondiente para la obtención de
fuerza motriz por medio de turbinas de fluidos elásticos. - 1922
March 31
ES81253 - Un
método, con su aparato correspondiente para transportes aéreos -
1922 April 3
Other
countries
The following
is a list of other countries that hold known patents by Tesla. The
number following the country is the number of known patents in
their records. This is not an exhaustive list. The total number may
be incomplete and additional countries still may hold patents
unknown.
The Tesla
effect.[11][12][13] A "world system" for "the transmission of
electrical energy without wires" that depends upon electrical
conductivity was proposed by Tesla.[14] An operator uses the Tesla
effect, wirelessly transferring electrical energy to a receiving
device.
Theoretical
and claimed inventions
Tesla
theorized about, planned to build, or claimed to have invented the
following inventions.
Wireless
Transmission of Electricity: transmitted from power stations and
received by antennae on houses and electric cars
Electric
Submarine
Teleforce
Death ray:
destructive energy transmitter he claimed to have built - "when
unavoidable... may be used to destroy property and life." ---
Tesla, 1915
Mechanical
Oscillator: compresses air until the air is a liquid
Free Energy:
Renewable electricity and heat tapped from the natural energy
sources (not energy created from nothing)
Earthquake
Machine: a pocket-sized device that could shake a house apart with
building waves of energy.
Force Field:
a Scalar field dome made of energy that will eventually be built
big enough to protect a city from attack during wars
Tesla's
Flying Machine: Another of Tesla's theorized inventions is commonly
referred to as Tesla's Flying Machine, which appears to resemble an
ion-propelled aircraft. Tesla claimed that one of his life goals
was to create a flying machine that would run without the use of an
airplane engine, wings, ailerons, propellers, or an onboard fuel
source. Initially, Tesla pondered about the idea of a flying craft
that would fly using an electric motor powered by grounded base
stations. As time progressed, Tesla suggested that perhaps such an
aircraft could be run entirely electro-mechanically. The theorized
appearance would typically take the form of a cigar or saucer.
Newspaper
representation of Tesla's theoretical invention, the thought
camera. Circa 1933.
Thought
Camera: In 1933, Tesla theorized about a device that could
photograph thoughts. "I expect to photograph thoughts... In 1893,
while engaged in certain investigations, I became convinced that a
definite image formed in thought, must by reflex action, produce a
corresponding image on the retina, which might be read by a
suitable apparatus. This brought me to my system of television
which I announced at that time..."