US PATENT SUBCLASS 315 / 141
.~ Transformer in the supply circuit

Current as of: June, 1999
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315 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS

137  DF  POLYPHASE A.C. SUPPLY {4}
141.~ Transformer in the supply circuit {4}
142  DF  .~.~> With interphase transformer in the supply circuit
143  DF  .~.~> Convertible transformer connections
144  DF  .~.~> Plural load devices
145  DF  .~.~> Plural cathode and/or anode load device

DEFINITION

Classification: 315/141

(under subclass 137) Systems provided with transformer means connected between the source of supply and the load device for supplying electric current to the load device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

140, for this subject matter where the system includes phase

multiplying means.

276, and indented subclasses, and the subclasses specified in the notes thereto for other systems in this class provided with a transformer in the supply circuit.

SEE OR SEARCH CLASS

323, Electricity: Power Supply or Regulation Systems, 361, for miscellaneous polyphase transformer systems.

336, Inductor Devices,

5+, for the structure of polyphase transformers and inductive reactors.