Patent ID: 6262642
Filing Date: 2001-07-17
Classification: H01H

Abstract:
A circuit breaker rotary contact arrangement comprising:a pair of opposing circular rotor plates, each of said rotor plates defining a carrier slot on a perimeter thereof;a movable contact arm intermediate said rotor plates, said contact arm defining a first movable contact at one end arranged opposite an opposing first fixed contact and a second movable contact at an end opposite said one end arranged proximate a second fixed contact;a pivot pin extending through said rotor plates and said movable contact arm, whereby said rotor plates and said movable contact arm rotate in unison;a pair of first contact springs, one of said first contact springs arranged on one side of said movable contact arm and another of said first contact springs arranged on an opposite side thereof; anda U-shaped lever intermediate said rotor plates, said U-shaped lever defining a pair of sidearms joined at one end by a bight, said bight arranged proximate a first shaped surface formed on said contact arm for providing a constant spring force between said first and second fixed and movable contacts.