Electricity: circuit makers and breakers – Electric switch details – Contact
Reexamination Certificate
2011-08-30
2011-08-30
Leon, Edwin A. (Department: 2833)
Electricity: circuit makers and breakers
Electric switch details
Contact
Reexamination Certificate
active
08008587
ABSTRACT:
A spring guide is provided for a carrier assembly of an electrical switching apparatus such as, for example, a circuit breaker. The carrier assembly includes a carrier body, a plurality of movable contact arms pivotably coupled to the carrier body, and a plurality of contact springs. Each of the contact springs is disposed between a portion of the carrier body and a corresponding number of the movable contact arms. Each spring guide includes a guide member disposed between a corresponding one of the contact springs and the corresponding number of movable contact arms to maintains alignment therebetween. The guide member preferably includes a planar portion including a first side, which spans a pair of adjacent movable contact arms, and a second side, which includes a projection. The projection is disposed within the coils of the corresponding one of the contact springs.
REFERENCES:
patent: 5566818 (1996-10-01), Kuboyama et al.
patent: 5694098 (1997-12-01), Mody et al.
patent: 6005206 (1999-12-01), Rakus et al.
patent: 2010/0258416 (2010-10-01), Kapples et al.
Kapples Lawrence Joseph
McAfee Mark Allen
Turner David Curtis
Eaton Corporation
Girardi Vanessa
Leon Edwin A.
Moran Martin J.
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