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.
Patent No.:
Date of Patent:
May. 06, 2003
Filed:
Dec. 20, 1999
Applicant:
Inventors:
William W. Chen, Marion, IA (US);
Randall L. Siebels, Cedar Rapids, IA (US);
Steven C. Wilgenbusch, Cedar Rapids, IA (US);
Assignee:
Square D Company, Palatine, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 3/00 ; H02H 7/00 ; H02H 9/02 ; H02H 5/04 ;
U.S. Cl.
CPC ...
H02H 3/00 ; H02H 7/00 ; H02H 9/02 ; H02H 5/04 ;
Abstract
An apparatus and method for interrupting the flow of electrical current in a line is disclosed. The invention provides for better limitation of current than can be achieved in the prior art. With effective current limitation, the magnetic force generated by the circuit breaker coil will not be excessive thereby reducing potential damage to the circuit breaker armature, increasing the interruption rating of the circuit breaker and end-use equipment and decreasing the interruption pressure within the circuit breaker.