US PATENT SUBCLASS 315 / 277
.~.~ Plural transformers 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  DF  .~ Transformer in the supply circuit {6}
277.~.~ Plural transformers in the supply circuit

DEFINITION

Classification: 315/277

(under subclass 276) Systems provided with two or more transformers in the supply circuit of the load device.

(1) Note. The transformers may have their primaries and/or secondaries connected in electrical series or shunt relation, or the transformers may be connected in cascade, that is, with the primary of one transformer connected to the secondary of another transformer.

SEE OR SEARCH THIS CLASS, SUBCLASS:

220, for systems having a plurality of transformers in the supply circuit of the load device and having a periodic

switch in the primary circuit of at least one of the transformers.

255, and indented subclass, for plural load device systems under subclass 246 having a plurality of transformers in the supply circuit of the load devices.

278, where the transformer is provided with only one primary winding or only one secondary winding, and there are a plurality of cooperating windings.