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. 08, 1983
Filed:
Dec. 23, 1981
Applicant:
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; H01C / ; H05B / ;
U.S. Cl.
CPC ...
1562737 ; 29611 ; 156252 ; 1562739 ; 1562748 ; 1562755 ; 1562757 ; 156295 ; 1563073 ; 1563077 ; 165185 ; 219505 ; 219540 ; 219553 ; 338 / ;
Abstract
A positive-temperature-coefficient (PTC) thermistor heating element in which joints between metal heat radiating means and the electrodes on a positive-temperature-coefficient thermistor element are attained only with an electrically insulative adhesive in such a way that prior to and during the curing step, the heat radiating means are pressed against the electrodes to establish thereby electrical contacts at least partially between them. The heat radiating means also function as current paths to and out, respectively, of the thermistor element. The PTC thermistor heating device is simple in construction and easy to fabricate at less cost yet has a high and stable thermal output.