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:
Nov. 16, 1993
Filed:
Mar. 16, 1992
Applicant:
Inventor:
Robert Z Kopelman, Rockville Centre, NY (US);
Assignee:
Opti-Lume Industries, Inc., Bayside, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01H / ; H01H / ;
U.S. Cl.
CPC ...
337103 ; 337113 ;
Abstract
An electrical safety device is provided with a heat responsive relay adapted to be interposed between a load and a power source. The relay is adapted to open circuit in response to a predetermined temperature. A heater element responsive to the opening of the relay is shunted across the relay. When the relay opens, power is shunted to the heater for maintaining the relay at least at the predetermined temperature thereby holding the relay open while the load remains connected to said power source.