US PATENT SUBCLASS 200 / 50.21
.~ Drawout-type switchgear

Current as of: June, 1999
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200 /   HD   ELECTRICITY: CIRCUIT MAKERS AND BREAKERS

50.01  DF  INTERLOCKING {4}
50.21.~ Drawout-type switchgear {5}
50.22  DF  .~.~> Shutter over contacts
50.23  DF  .~.~> Truck type
50.24  DF  .~.~> With racking mechanism {1}
50.26  DF  .~.~> With position indicating means (i.e., connect, disconnect, or test)
50.27  DF  .~.~> Contact or contact mounting structure

DEFINITION

Classification: 200/50.21

Drawout-type switchgear:

(under subclass 50.01) Subject matter comprising an aggregate of switching facilities having components on a sliding box or receptacle that is opened by pulling out and closed by pushing in, combined with an enclosure for a power station or transforming station.

SEE OR SEARCH THIS CLASS, SUBCLASS:

50.17, for dual interlocked between door and switch.