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. 11, 1986
Filed:
Sep. 09, 1983
Applicant:
Inventors:
Lionel J Melanson, Cumberland, ME (US);
Frank Bucherati, Cumberland, ME (US);
Assignee:
GTE Products Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01C / ; H01C / ;
U.S. Cl.
CPC ...
219 68 ; 2940221 ; 29575 ; 2961 / ; 219381 ; 219505 ; 3382 / ; 338 25 ;
Abstract
A PTC heater has passages therethrough through which a fluid can flow to be heated. The passages are separated from each other by thin walls of PTC material. Electrical current flow is in a direction normal to the thin walls. A short duration pulse of high electric current is applied to the heater in order to eliminate any electrical shorts between passages.