Switch structure having forcedly opening-and-locking mechanism e

Details Switch structure having forcedly opening-and-locking mechanism e Switch structure having forcedly opening-and-locking mechanism e

1998-11-23

2000-08-08

Luebke, Renee

Electricity: circuit makers and breakers

Snap

Double snap

200558, 200329, 200DIG42, H01H 114

Patent

active

061004839

ABSTRACT:
Disclosed is an improved switch structure having forcedly opening-and-locking mechanism installed therein. It is responsive to the sticking of the movable and stationary contact elements for forcedly breaking an associated heavy-current carrying circuit which otherwise, would remain closed through the stuck contact elements. The forcedly opening-and-locking mechanism comprises an auxiliary contact section spring-biased to retain the stationary contact element in conductive condition to the associated circuit. It is responsive to the sticking-and-rising of the movable and stationary contact elements for allowing the stationary contact element to be apart from the conductive position to the associated circuit by yielding the rising force of the stuck contact elements until the locking position is reached, in which position the stationary contact element is kept in non-conductive position.

REFERENCES:
patent: 3110792 (1963-11-01), Gauthier
patent: 3953697 (1976-04-01), Teichert
patent: 4216358 (1980-08-01), Brozille

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