Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1976-12-30
1980-08-26
Marcus, Stephen
Electricity: circuit makers and breakers
Liquid contact
Time delay
200153SC, 200322, H01H 346
Patent
active
042197139
ABSTRACT:
A circuit breaker having stationary and movable contacts operable between open and closed positions with the movable contact being biased in an open position. An operating mechanism, for effecting movement of the contacts between the open and closed positions includes a toggle having first and second links and a toggle lever. Also included is a releasable toggle latch for holding the toggle in a toggle position. The toggle latch includes a rod having a flat surface which is adjacent to and contacts, the toggle lever. The rod is rotatable between first and second positions with the rod flat surface, when in the first position, preventing movement of the toggle lever and when in the second position permits movement of the toggle lever such that the toggle can be released from toggle position. A latch catch is fixedly secured to, and rotatable with, the rod, with movement of a latch catch causing movement of the rod. The latch catch is biased in the rod second position where the toggle lever can be released, and a releasable lever system holds for the latch catch in the rod first position.
REFERENCES:
patent: 1431288 (1922-10-01), Corder
patent: 3604875 (1971-09-01), Walters
patent: 4064595 (1977-12-01), Learer
Maier Alfred E.
Ricci Louis N.
Marcus Stephen
Westinghouse Electric Corp.
Yatsko M. S.
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