Electricity: circuit makers and breakers – Electric switch details – Contact
Patent
1991-11-06
1993-03-09
Recla, Henry L.
Electricity: circuit makers and breakers
Electric switch details
Contact
335 46, 335193, H01H 360
Patent
active
051928418
ABSTRACT:
A circuit breaker having a chassis, an electrical contact structure, and a shock absorber mechanism. The contact structure includes a movable first electrical contact and a second electrical contact. The first contact has a first movement range. The shock absorbing mechanism, which absorbs energy from the movement of the first contact, includes a metallic bar pivotally mounted on the chassis, and first and second limit members fixed to the chassis. The first and second limit members define a second movement range which overlaps the first movement range. A spring weakly biases the metallic bar towards the second limit member. The first contact, during movement thereof to an open position, strikes the metallic bar. Kinetic energy is removed from the first electrical contact by the metallic bar without bounce of the electrical contact, and the metallic bar pivots against the first limit member, transferring the shock of stopping the first contact to the chassis.
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Klimek Edward J.
Krevokuch Robert N.
Milianowicz Stanislaw A.
Barrett Glenn T.
Moran M. J.
Recla Henry L.
Westinghouse Electric Corp.
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