US PATENT SUBCLASS 363 / 4
.~.~.~ Single phase to polyphase to D.C.

Current as of: June, 1999
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363 /   HD   ELECTRIC POWER CONVERSION SYSTEMS

1  DF  CASCADED OR COMBINED, DIVERSE CONVERSIONS IN WHICH THE FREQUENCY OR PHASE OR COMBINED CONVERSION IS WITHOUT INTERMEDIATE CONVERSION TO D.C. {3}
2  DF  .~ Current and phase (e.g., D.C.-Ph1-Ph2) {1}
3  DF  .~.~ Phase 1 to phase 2 to D.C. {3}
4.~.~.~ Single phase to polyphase to D.C.

DEFINITION

Classification: 363/4

Single phase to polyphase to D.C.:

(under subclass 3) Subject matter wherein single phase A.C. is converted to polyphase A.C. which is then converted to D.C.