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:
Dec. 22, 1992
Filed:
Jul. 18, 1991
Applicant:
Inventors:
Bruce A Weigand, Canton, OH (US);
John E Ericson, Jr, Chagrin Falls, OH (US);
Frank N Carbone, S. Euclid, OH (US);
Assignee:
Ericson Manufacturing Company, Willoughby, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
335 18 ; 361 42 ;
Abstract
A resettable switching apparatus for selectively interrupting a circuit connecting power from a first terminal to a second terminal when a ground fault occurs. The apparatus may be manually or electrically set. However, the contacts are held by a permanent magnet in the closed position such that no current is required. When a ground fault is detected, a current is generated to force the contacts to the open position.