List of transformer patents
A transformer is the means interposed between the electrical source and the electrical load circuit for controlling the voltage, current magnitude, or phase. More specifically, a transformer is an electrical device that transfers energy from one circuit to another by magnetic coupling with no moving parts. A transformer comprises two or more coupled windings, or a single tapped winding and, in most cases, a magnetic core to concentrate magnetic flux. This listing also includes generic transformer systems, that is, systems in which a transformer supplies an output circuit. Transformers here are used to convert between high and low voltages, to change impedance, and to provide electrical isolation between circuits. Below is a list of transformer patents.
American
- Numbered
- ‘, Improvements in induction coils, Daniel McFarland Cook
- ‘, Induction coil, William Stanley, Jr.
- ‘, Method of converting and distributing Electric Currents, Nikola Tesla
- ‘, System of electrical distribution, William Stanley, Jr.
- ‘, Means for distributing electrical energy, Sebastian Ziani de Ferranti
- ‘, System of electrical distribution, Nikola Tesla
- ‘, Electromagnet, F. J. Patten
- ‘, Electrical transformer Or induction device, Nikola Tesla
- ‘, Electrical transformer, Nikola Tesla
- ‘, System of electrical distribution, W. B. and L. C. Reed
- ‘, Electric spark coil, S. B. Morss
- ‘, Telephone transformer, H. Liebreich
- ‘, Electric circuit, G. A. Campbell
- ‘, Electric circuit, G. A. Campbell
- ‘, Electrical transformer, Jozef Murgaš
- ‘, Apparatus for transmitting electrical energy, Nikola Tesla
- ‘, Induction coil
- ‘, Variable magnetic opposed coil electric circuit, I. E. Aske
- ‘, Ventilating means for reactance coils, L. W. Chubb
- ‘, Means for controlling alternate currents, E. F. W. Alexanderson
Non-American
- GB186,083, Economic Transformation of the Energy of Steam by Turbines, Nikola Tesla
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