US PATENT SUBCLASS 218 / 81
.~.~ Arc chute

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}
81.~.~ Arc chute

DEFINITION

Classification: 218/81

Arc chute:

(under subclass 43) Subject matter including a structure affording a confined space or passageway, usually lined with arc-resisting material, into or through which an arc is directed for extinction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

15, for auxiliary shunt circuit interrupter.

34+, for magnetic blowout.

149+, for general arc preventing device.