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:
Apr. 12, 2022
Filed:
Sep. 21, 2018
Applicant:
Watlow Electric Manufacturing Company, St. Louis, MO (US);
Inventor:
Martin Wallinger, Abtenau, AT;
Assignee:
Watlow Electric Manufacturing Company, St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 1/02 (2006.01); H05B 3/26 (2006.01);
U.S. Cl.
CPC ...
H05B 1/0294 (2013.01); H05B 3/26 (2013.01);
Abstract
A layered heater is provided that includes a sensor layer formed by a layered process having a plurality of independently controllable zones, and a resistive heating layer disposed adjacent the sensor layer. In one form, the sensor layer is formed of a material having a relatively high temperature coefficient of resistance (TCR) and the resistive heating layer is formed of a material having a relatively low TCR.