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:
Feb. 02, 1982
Filed:
Jul. 31, 1980
Applicant:
Inventors:
Raymond F Cardinal, Fremont, CA (US);
Jack M Walker, Portola Valley, CA (US);
Assignee:
Raychem Corporation, Menlo Park, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01C / ;
U.S. Cl.
CPC ...
338314 ; 338 25 ; 338328 ; 338329 ; 338308 ;
Abstract
Electrical devices comprise a conductive polymer element and, in electrical contact therewith, a flame-sprayed layer of a metal or other highly conductive material. Electrical leads can readily be attached to the flame-sprayed layer. Particularly valuable devices are those in which at least part of the conductive polymer element is a PTC or NTC conductive polymer. The flame-sprayed layer can be formed directly by flame-spraying a suitable material onto the device, or by flame-spraying the material onto a carrier and then laminating the layer, on the carrier, to the device.