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:
Jan. 19, 1993
Filed:
Apr. 15, 1991
Walter C Lovell, Wilbraham, MA (US);
Tapeswitch Corporation of America, Farmingdale, NY (US);
Abstract
An electrical resistance heating element includes a pair of spaced apart electrical conductors, and a strip of resistive material disposed between the conductors and extending along their lengths. A strip of heat-sensitive, electrically conductive material is also disposed between the conductors and also extends along their lengths. The strips of resistive material and heat-sensitive, electrically conductive material together provide an electrical path between the conductors widthwise along their lengths. The heat-sensitive strip interrupts an electrical path between the conductors and widthwise through the resistive material strip only over portions of the resistive material strip which attain a predetermined temperature.