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:
Dec. 26, 1989
Filed:
Mar. 16, 1988
Applicant:
Inventors:
Richard W Farkas, Stow, OH (US);
David A Rock, Ravenna, OH (US);
James H Anderson, Massillon, OH (US);
Assignee:
The Fluorocarbon Company, Aurora, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219548 ; 219505 ; 29611 ;
Abstract
A phenomenon sometimes referred to as tracking can occur when the end of an electrical heater, made of two or more metal conductors and a conductive polymer web, comes into contact with water or other electrolytes which allow arcing to take place across the surface of the web. Tracking is stopped by holes in the web which prevent arcing from continuing up the length of the heat tape.