Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – With latch- or trip-reset means
Patent
1980-06-23
1981-11-17
Broome, Harold
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
With latch- or trip-reset means
200153SC, 200320, 335 26, H01H 920, H01H 7312
Patent
active
043014364
ABSTRACT:
Compound hook apparatus for intercepting and holding circuit breaker contacts in a hooked open position against the closing force of charged operating mechanism springs includes a primary hook releasably latching an intermediate hook in a hooking position to fixedly dispose a pin in intercepting relation with a hook cam carried by a breaker movable contact assembly. The primary hook is articulated to unlatch the intermediate hook, freeing the latter to thereby release the movable contacts from their hooked open position.
REFERENCES:
patent: 4211989 (1980-07-01), Acampora
patent: 4220936 (1980-09-01), Powell
patent: 4245140 (1981-01-01), Jencks et al.
patent: 4251702 (1981-02-01), Castonguay et al.
Castonguay Roger N.
Jencks Charles L.
Bernkopf Walter C.
Broome Harold
General Electric Company
Menelly Richard A.
Schlamp Philip L.
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