US PATENT SUBCLASS 318 / 790
.~.~.~.~.~.~ With relay coil in series with main winding

Current as of: June, 1999
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318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

727  DF  INDUCTION MOTOR SYSTEMS {12}
767  DF  .~ Primary circuit control {9}
778  DF  .~.~ Starting control {3}
781  DF  .~.~.~ Operating from a single phase source {6}
785  DF  .~.~.~.~ Start winding removed during running operation {4}
789  DF  .~.~.~.~.~ By electromagnetic switch {1}
790.~.~.~.~.~.~ With relay coil in series with main winding

DEFINITION

Classification: 318/790

With relay coil in series with main winding:

(under subclass 789) Subject matter wherein the switch includes an operating coil for the electromagnetic switch in series with the main primary winding.