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:
Aug. 29, 2006
Filed:
Feb. 26, 2004
Franz Bohlender, Kandel, DE;
Maurice Clauss, Nordhause/Frankreich, FR;
Michael Niederer, Kapellen-Drusweiler, DE;
Franz Bohlender, Kandel, DE;
Maurice Clauss, Nordhause/Frankreich, FR;
Michael Niederer, Kapellen-Drusweiler, DE;
Catern GmbH & Co. KG, Herxheim Bei Landau, DE;
Abstract
An electric heating device is adapted to be used in particular as an auxiliary electric heating for motor vehicles. The heating device comprises a plurality of PTC heating elements arranged in a plane of said heating device. The PTC heating elements are in electric contact with contact sheets for supplying current thereto and in thermal contact with radiator elements for transferring the heat produced to an air current to be heated. According to the present invention, the PTC heating elements arranged in this plane are adapted to be controlled separately in at least two groups.