US PATENT SUBCLASS 218 / 2
.~ Multiple break

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}
2.~ Multiple break {5}
3  DF  .~.~> Hybrid-type
4  DF  .~.~> Series connected break
5  DF  .~.~> Simultaneous break
6  DF  .~.~> Sequential break
7  DF  .~.~> Operating mechanism structure or arrangement

DEFINITION

Classification: 218/2

Multiple break:

(under subclass 1) Subject matter wherein the means for preventing or extinguishing electric arc comprises two or more circuit breakers arranged to break at plural points of the circuit.