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:
Nov. 12, 2024

Filed:

Oct. 12, 2022
Applicant:

Lg Electronics Inc., Seoul, KR;

Inventor:

Misun Song, Seoul, KR;

Assignee:

LG Electronics Inc., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 3/10 (2006.01); A47J 36/24 (2006.01); F24C 7/06 (2006.01); F24C 7/08 (2006.01); H05B 3/03 (2006.01); H05B 3/16 (2006.01); H05B 3/20 (2006.01); H05B 3/26 (2006.01); H05B 3/68 (2006.01); H05B 3/74 (2006.01); H05B 3/76 (2006.01);
U.S. Cl.
CPC ...
H05B 3/76 (2013.01); A47J 36/2483 (2013.01); F24C 7/062 (2013.01); F24C 7/088 (2013.01); H05B 3/03 (2013.01); H05B 3/20 (2013.01); H05B 3/26 (2013.01); H05B 3/265 (2013.01); H05B 3/68 (2013.01); H05B 3/748 (2013.01); H05B 2203/007 (2013.01); H05B 2203/016 (2013.01); H05B 2203/017 (2013.01); H05B 2203/028 (2013.01); H05B 2203/03 (2013.01);
Abstract

An electric heater includes a substrate and an inner plane heating element formed on one surface of the substrate. The inner plane heating element includes an inner pattern portion connecting a start point with an end point. The inner pattern portion includes a first track, a second track located outside the first track and spaced part from the first track, a first bridge connecting the first track with one end of the second track, a third track located outside the second track and spaced apart from the second track, and a second bridge connecting the other end of the second track with the third track. A first gap G1 between the first and second tracks is shorter than a second gap G2 between the second and third tracks along a virtual line crossing the first, second and third tracks and closer to the first bridge than the second bridge.


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