US PATENT SUBCLASS 218 / 55
.~.~ Grounding switch

Current as of: June, 1999
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218 /   HD   HIGH-VOLTAGE SWITCHES WITH ARC PREVENTING OR EXTINGUISHING DEVICES

1  DF  ARC PREVENTING OR EXTINGUISHING DEVICES {14}
43  DF  .~ Air-current blowout {18}
55.~.~ Grounding switch

DEFINITION

Classification: 218/55

Grounding switch:

(under subclass 43) Subject matter including a mechanical switching device by means of which the air-current blowout circuit breaker is electrically connected to earth.

SEE OR SEARCH THIS CLASS, SUBCLASS:

79, for sealed chamber circuit interrupter.