US PATENT SUBCLASS 315 / 276
.~ Transformer in the supply circuit

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

246  DF  PULSATING OR A.C. SUPPLY {10}
276.~ Transformer in the supply circuit {6}
277  DF  .~.~> Plural transformers in the supply circuit
278  DF  .~.~> Three or more coil-type transformers
279  DF  .~.~> Current regulator in the primary circuit
280  DF  .~.~> Convertible to inductance
281  DF  .~.~> Relatively movable core and coil-type transformer
282  DF  .~.~> Regulating transformer

DEFINITION

Classification: 315/276

(under subclass 246) Systems provided with a transformer connected between the source of supply and the load device for supplying electric current and/or potential to the load device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

57, for discharge devices combined with a transformer, the discharge device and transformer being structurally combined in a single unitary device.

70, for miscellaneous load devices which are structurally combined with a transformer so as to form a unitary device.

141, and indented subclasses, for this subject matter where the supply system is a polyphase alternating current system.

177, for this subject matter where there is a load device in both the primary and secondary circuits of the transformer.

206, for this subject matter where there is a rectifier and/or discharge device in the primary circuit of the transformer. 212, and indented subclasses, for plural load device systems

having a transformer and a distributor type periodic switch means in the supply circuit.

219, and indented subclasses, for systems having a transformer in the supply circuit of the load device and a periodic switch in the primary circuit of the transformer.

239, where there is a condenser and transformer in the supply circuit.

254, and indented subclasses, for this subject matter where there are a plurality of load devices in the system.

262, for this subject matter where the discharge device is an auxiliary starting electrode discharge device, and there is a transformer in the auxiliary starting electrode circuit.

266, for this subject matter where the load device is a plural cathode and/or anode discharge device, and the system is a full wave system.

SEE OR SEARCH CLASS

314, Electric Lamp and Discharge Devices: Consumable Electrodes,

32, for systems for supplying current to discharge devices of the consumable electrode type in which a transformer is used to supply the current to the discharge device.

323, Electricity: Power Supply or Regulation Systems,

355, 363, and the subclasses specified in the notes to the definitions of those subclasses for miscellaneous transformer systems and for miscellaneous systems having a transformer for controlling the magnitude of the current and/or voltage in a single circuit.