Latch for contact operating mechanism

Details Latch for contact operating mechanism Latch for contact operating mechanism

1976-07-06

1978-06-27

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335170, 335202, H01H 7302, H01H 7500, H01H 7700

Patent

active

040978303

ABSTRACT:
A single pole molded case circuit breaker is constructed with an internal metal frame to which the contact operating mechanism is mounted. This mechanism includes a releaseable latch for maintaining the mechanism cradle in its reset position wherein the circuit breaker contacts may be closed. The latch is a plate-like element having an integrally formed ear that directly engages the cradle for latching thereof. A socket rivet provides a cantilevered support for the latch on the frame. This rivet is keyed to the latch so that operation of the latter may be coordinated with operation of an external device.

REFERENCES:
patent: 3329913 (1967-07-01), Camp
patent: 3388357 (1968-06-01), Lawson et al.
patent: 3477044 (1969-11-01), Gryctko
patent: 3970976 (1976-07-01), Nicol

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