Patent Number: 6,310,307

Title: Circuit breaker rotary contact arm arrangement

Abstract: A rotary contact arrangement for circuit breakers of the type including a pair of movable contacts (30,36), one arranged on each end of the rotary contact arm (32), utilizes a single pair of contact springs (38), one spring on each side of the rotary contact arm (32). The springs (38) are aligned to intersect the axis of rotation of the rotary contact arm (32) for automatic uniform contact force adjustment throughout the operating life of the circuit breaker.

Inventors: Ciarcia; Ronald (Bristol, CT), Schlitz; Lei Zhang (Burlington, CT)

Assignee: General Electric Company

International Classification: H01H 73/00 (20060101); H01H 73/04 (20060101); H01H 1/32 (20060101); H01H 1/12 (20060101); H01H 77/00 (20060101); H01H 77/10 (20060101); H01H 003/00 (); H01H 009/20 ()

Expiration Date: 10/30/2018