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:
Sep. 13, 1983
Filed:
Dec. 17, 1981
Bernd Eder, Wuppertal, DE;
Eckehard Wosthoff, Wermelskirchen, DE;
Kabelwerke Reinshagen GmbH, Wuppertal, DE;
Abstract
An electrical heating device is disclosed for heating a plate which, for example, is used for heating the outside rear view mirror of a vehicle. The heating device includes a positive temperature coefficient resistor constructed as a resistive body in the form of a flat cylindrical ring. One flat surface of the ring is seated upon the plate to be heated which is used as one electrical terminal of the resistor. Another metal plate is seated against the other flat surface of the ring and serves as the second electrical terminal and also as a heat distributing plate for the resistive body. A two part fastening means comprising a headed shank and a press-on nut is provided, with the shank extending through the plates and the resistive body to press them against one another to obtain good electrical and thermal conduction.