Handle attachment, assist mechanism therefor, and electrical...

Details Handle attachment, assist mechanism therefor, and electrical... Handle attachment, assist mechanism therefor, and electrical...

2007-03-06

2007-03-06

Enad, Elvin (Department: 2832)

Electricity: circuit makers and breakers

Interlocking

Drawout-type switchgear

C200S050260

Reexamination Certificate

active

11127721

ABSTRACT:
An assist mechanism is for a handle attachment of a circuit breaker having a housing with an operating member operable among a plurality of positions. The handle attachment includes a casing coupled to the circuit breaker housing and enclosing an actuating assembly which interconnects the circuit breaker operating member with a handle that is operable from the exterior of the casing. The assist mechanism is a wave spring having a first end coupled to the casing, and a second end having a wave bend that divides the second end into three sections having three corresponding tangential vector forces. The tangential vector forces provide a bias to the actuating assembly of the handle attachment that differs depending on the position of the circuit breaker operating member. In this manner, the assist mechanism augments energy generated by movement of the operating member and translates it into a corresponding handle attachment movement.

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patent: 6803536 (2004-10-01), Slepian

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