US PATENT SUBCLASS 218 / 69
.~.~.~ Plural switch connected in series

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}
68  DF  .~.~ Sealed chamber {10}
69.~.~.~ Plural switch connected in series {1}
70  DF  .~.~.~.~> Hybrid-type

DEFINITION

Classification: 218/69

Plural switch connected in series:

(under subclass 68) Subject matter including two or more circuit interrupting breakers are connected in succession; that is, the same current passes through each breaker in completing its path to the source of supply.

SEE OR SEARCH THIS CLASS, SUBCLASS:

4, for series connected multiple break circuit interrupter.