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:
Sep. 11, 2001
Filed:
Nov. 03, 1999
Applicant:
Inventors:
Chester L. Sandberg, Palo Alto, CA (US);
Albert J. Highe, Redwood City, CA (US);
Jose Gamarra, Union City, CA (US);
Lawrence J. White, Newark, CA (US);
Frank Orecchia, Redwood City, CA (US);
Ted M. Aune, Boulder Creek, CA (US);
Assignee:
Tyco Electronics Corporation, Middletown, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 3/44 ;
U.S. Cl.
CPC ...
H05B 3/44 ;
Abstract
An electrical cable device such as a heating cable includes a braidless ground return layer surrounding an inner jacket. The ground return layer is formed by a conductive polymer and a ground return wire connected to the conductive polymer. The polymer may be made suitably conductive for ground fault detection by addition of a particulate conductive filler such as carbon black, carbon fibers, or a blend thereof.