Electrical switching apparatus, and latch assembly and latch...

Details Electrical switching apparatus, and latch assembly and latch... Electrical switching apparatus, and latch assembly and latch...

2007-04-19

2008-12-02

Leon, Edwin A. (Department: 2833)

Electricity: circuit makers and breakers

Contact moved by sudden release of stored energy,

Reexamination Certificate

active

07459650

ABSTRACT:
A latch engagement control mechanism is provided for a latch assembly of a circuit breaker including a housing, separable contacts, and an operating mechanism having a pole shaft, and at least one link coupled to the pole shaft. The latch assembly includes a pivot member cooperable with such link. The latch engagement control mechanism includes a latch pin having a cut-out portion and pivoting among a first position in which the latch pin prevents the pivot member from pivoting, and a second position in which the cut-out portion provides a clearance for the pivot member to pivot. A latch member coupled to the latch pin at or about the cut-out portion, includes at least a first protrusion engageable by the pivot member to establish the first position of the latch pin.

REFERENCES:
patent: 3002068 (1961-09-01), Maier
patent: 6066821 (2000-05-01), Wehrli, III et al.
patent: 6437269 (2002-08-01), Rakus
patent: 6870112 (2005-03-01), Bresciani et al.
patent: 7115830 (2006-10-01), Weister et al.

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