US PATENT SUBCLASS 363 / 3
.~.~ Phase 1 to phase 2 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.~.~ Phase 1 to phase 2 to D.C. {3}
4  DF  .~.~.~> Single phase to polyphase to D.C.
5  DF  .~.~.~> With interphase transformer {1}
7  DF  .~.~.~> With dynamic rectifier in phase 2 to D.C. stage (e.g., commutator type)

DEFINITION

Classification: 363/3

Phase 1 to phase 2 to D.C.:

(under subclass 2) Subject matter wherein A. C. of one phase is converted to A.C. of another phase which is then converted

to D.C.