The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 04, 2003

Filed:

Oct. 29, 2001
Applicant:
Inventors:

Christian V. Pellon, Norton, MA (US);

Peter G. Berg, Attleboro Falls, MA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 3/752 ; H01H 3/770 ; H02H 3/08 ;
U.S. Cl.
CPC ...
H01H 3/752 ; H01H 3/770 ; H02H 3/08 ;
Abstract

A circuit breaker ( ) has a current carrying bimetallic element ( ) which bends upon self-heating and upon being subjected to a selected overload current transfers motion to a connecting plate ( ) which displaces a latch surface ( ) from a catch ( ) of a bell crank mechanism ( ) allowing a spring biased operating member ( ) to move movable contact means ( ) out of contact engagement with stationary contact means ( ) thereby tripping the circuit breaker. An arc sensing circuit ( ) is coupled to the load circuit and upon sensing selected arcs causes an arc responsive actuator ( ) to be energized to transfer motion to the latch ( ) to trip the circuit breaker.


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