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.

Date of Patent:
Jun. 18, 2013

Filed:

May. 17, 2007
Applicant:

Jason Daniel Harold O'connor, Derbyshire, GB;

Inventor:
Assignee:

Heat Trace Limited, Frodsham, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 3/10 (2006.01); H05B 3/34 (2006.01);
U.S. Cl.
CPC ...
Abstract

A material comprises: a first component having a first positive temperature coefficient of resistance characteristic; and a second component having a second positive temperature coefficient of resistance characteristic, the second positive temperature coefficient of resistance characteristic being different from the first positive temperature coefficient of resistance characteristic, the proportions of the two components being such that the material has a positive temperature coefficient of resistance characteristic which is a combination of the first and second positive temperature coefficient of resistance characteristics of the first and second components.


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