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:
Jun. 27, 2017
Filed:
May. 09, 2016
Applicant:
Borgwarner Ludwigsburg Gmbh, Ludwigsburg, DE;
Inventors:
Assignee:
BorgWarner Ludwigsburg GmbH, Ludwigsburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 1/02 (2006.01); H05B 3/50 (2006.01); F24H 9/18 (2006.01); F24H 3/04 (2006.01); H05B 3/14 (2006.01);
U.S. Cl.
CPC ...
H05B 3/50 (2013.01); F24H 3/0405 (2013.01); F24H 9/1872 (2013.01); H05B 3/141 (2013.01); H05B 2203/019 (2013.01); H05B 2203/02 (2013.01); H05B 2203/023 (2013.01);
Abstract
Disclosed is an electrical heating device for heating the interior of a vehicle, comprising a plurality of PTC heating rods each comprising ceramic PTC heating resistors, heat sinks for transferring heat from the PTC heating rods to an air flow, and a holder holding the PTC heating rods. The PTC heating rods are connected in series to an NTC heating rod comprising at least one NTC resistor, wherein the NTC heating rod is held by the holder.