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:
Jul. 20, 1993
Filed:
Apr. 24, 1991
Applicant:
Inventors:
Bernard Gurstein, Hayden Lake, ID (US);
Russell Gurstein, Hayden, ID (US);
Assignee:
U.S. Products, Inc., Hayden Lake, ID (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H / ; H02H / ; H02H / ;
U.S. Cl.
CPC ...
361 85 ; 307511 ; 307 39 ; 307 11 ;
Abstract
A sensor connected to two different phases of an electrical wiring system provides positive protection against overloading of any single phase by preventing operation of one circuit load when there is no phase difference between the wiring circuits.