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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.:

US 11491847 B1

PDFFull Text
Date of Patent:
Nov. 08, 2022

Filed:

Feb. 27, 2019

Positive temperature coefficient heaters and radiant applications thereof

Applicant:

GM Global Technology Operations Llc, Detroit, MI (US);

Inventors:

Chih-hung Yen, Bloomfield Hills, MI (US);

Taeyoung Han, Bloomfield Hills, MI (US);

Bahram Khalighi, Birmingham, MI (US);

Kuo-huey Chen, Troy, MI (US);

Shailendra Kaushik, Novi, MI (US);

Assignee:

GM Global Technology Operations LLC, Detroit, MI (US);

Attorney:

Quinn IP Law

Primary Examiner:

Shawntina T Fuqua

Int. Cl.
CPC ...
B60H 1/22 (2006.01); H05B 3/34 (2006.01); H05B 1/02 (2006.01);
U.S. Cl.
CPC ...
B60H 1/2218 (2013.01); B60H 1/2225 (2013.01); H05B 1/0238 (2013.01); H05B 3/34 (2013.01); B60H 2001/2293 (2013.01); H05B 2203/02 (2013.01);
Abstract

A heating apparatus is provided. The heating apparatus includes a positive temperature coefficient (PTC) heating element and a power controller configured to generate and apply a pulse width modified signal to the PTC heating element. The power controller is configured to vary a current of the pulse width modified signal linearly with respect to a temperature of a space being heated by the PTC heating element.

Find Patent Forward Citations

Yen, Chih-hung. (2022). Positive temperature coefficient heaters and radiant applications thereof (U.S. Patent No. 11491847). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11491847

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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