US PATENT SUBCLASS 218 / 67
.~.~.~ Disconnect 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}
57  DF  .~.~ Puffer piston {6}
67.~.~.~ Disconnect switch

DEFINITION

Classification: 218/67

Disconnect switch:

(under subclass 57) Subject matter including a mechanical switch that is intended to disconnect the air-current blowout circuit breaker from the electric power source for maintenance, changing connections, and opening and closing circuits.

SEE OR SEARCH THIS CLASS, SUBCLASS:

12, for auxiliary shunt circuit interrupter.

45, for air-current blowout circuit interrupter.

80, for sealed chamber circuit interrupter.

100, for liquid circuit interrupter.

SEE OR SEARCH CLASS 200, Electricity: Circuit Makers and Breakers,

48+, for details of a high potential type disconnect switch.