US 2014/0151206 A1 · ELECTRICAL SWITCHING APPARATUS AND MOVABLE CONTACT ARM ASSEMBLY THEREFOR

Abstract

A movable contact arm assembly is provided for an electrical switching apparatus, such as a circuit breaker. The movable contact arm assembly includes a first member, and a second member attached to the first member. The first member is made from a first material, such as steel, and the second member is made from a second different material, such as copper. The first and second members each include first and second ends. The first end of the first member cooperates with the operating mechanism of the circuit breaker. The first end of the second member is attached to the second end of the first member. A movable contact is disposed on the second end of the second member.

Claims20

Dependent claims

A movable contact arm assembly for an electrical switching apparatus, said electrical switching apparatus including a housing, separable contacts enclosed by the housing, and an operating mechanism for opening and closing said separable contacts, said movable contact arm assembly comprising:

a first member;
and
a second member attached to said first member,
wherein said first member is made from a first material and said second member is made from a second different material.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

13/692,053Filed 3 Dec 2012

Published

5 Jun 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

H01H 3/02
Mechanisms for operating contacts: operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
H01H 1/02
Contacts: characterised by the material thereof
H01H 1/22
By abutting: with rigid pivoted member carrying the moving contact
H01H
Electric switches

Electrical switching apparatus and movable contact arm assembly therefor

Life of this patent

Electrical switching apparatus and movable contact arm assembly therefor

Life of this patent

Abstract

Claims20