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Nikola Tesla Patents

Tesla was granted nearly 200 patents worldwide
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Nikola Tesla Motors & Generators Patents

U.S. Patent 514,168 - Means for Generating Electric Currents

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The invention, subject of my present application, is an improvement applicable more especially to the method or system of generating and utilizing electrical energy, heretofore discovered by me, and more fully set forth in Letters Patent No. 454,622, of June 23, 1891, and No. 462,418, of November 3, 1891, and which...
Type: patent - Added: 3/1/2015

U.S. Patent 464,666 - Electro-Magnetic Motor

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The general object of my present invention is to secure artificially a difference of a quarter of a phase between the currents in the two energizing-circuits of an alternating-current electro-magnetic motor of that general class invented by me, in which the action or operation is dependent upon the inductive...
Type: patent - Added: 3/1/2015

U.S. Patent 455,067 - Electro-Magnetic Motor

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The subject of my present invention is an improvement primarily designed for application to alternating-current motors of the special type invented by me, and of which the operation is due to the action of alternating currents differing in phase and directed through or developed in independent energizing-circuits in...
Type: patent - Added: 3/1/2015

U.S. Patent 447,921 - Alternating Electric Current Generator

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In the systems of distribution of electrical energy from alternating-current generators in present use the generators give ordinarily from one to three hundred alternations of current per second. I have recognized and demonstrated in practice that it is of great advantage, on many accounts, to employ in such systems...
Type: patent - Added: 3/1/2015

U.S. Patent 433,703 - Electro-Magnetic Motor

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This invention is an improvement in alternating-current motors, and has for its general object to produce a single-circuit alternating current torque-motor of economical and simple construction. The nature of the invention will be understood from the following statement. It is well known that if a magnetic core,...
Type: patent - Added: 3/1/2015

U.S. Patent 433,701 - Alternating-Current Motor

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This invention relates to that class of alternating-current motors in which the field-magnets are energized by coils connected up in two circuits derived from the same source and having different degrees of self-induction, whereby the currents in one circuit or branch are retarded more than in the other, with the...
Type: patent - Added: 3/1/2015

U.S. Patent 433,700 - Alternating-Current Electro-Magnetic Motor

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This invention is an improvement in that class of electro-magnetic motors in which the rotation is produced by the progressive movement or effect of the maximum magnetic points or poles produced by the conjoint action or effect of two energizing-circuits through which are passed alternating currents, or currents of...
Type: patent - Added: 3/1/2015

U.S. Patent 417,794 - Armature for Electric Machines

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The invention relates to the construction of armatures for electric generators and motors, and the object is to provide an electrically efficient armature, the construction of which is simple and economical, and in which the coils of insulated conducting wire or ribbon may be conveniently wound or formed into...
Type: patent - Added: 3/1/2015

U.S. Patent 445,207 - Electro-Magnetic Motor

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Among the various forms of alternating-current motors invented by me is one which I have described in other applications, and which is constructed as follows: I build a field-core with, say, four poles, between which is mounted an armature that is generally wound with closed coils. On two of the opposite poles of...
Type: patent - Added: 3/1/2015

U.S. Patent 424,036 - Electro-Magnetic Motor

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I have invented and elsewhere described an electro-magnetic motor operated or adapted to be operated by an alternating electric current, and which is now commonly designated, whether correctly or not, a "magnetic-lag" motor. The main distinguishing features of this motor are the following: An armature is mounted...
Type: patent - Added: 3/1/2015

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