Patent · US Active

Flat heating element

US8288693B2 · kind B2 · utility

40Cited by

55References

20Claims

0Family size

Assignee

W.E.T. Automotive Systems AG · DE

Inventors

Michael Weiss · Dittelbrunn, DE
Simone Kohler · Esslingen am Neckar, DE
Peter Tremmel · Chicago, US

Key dates

Filing date	Mar 4, 2005
Grant date	Oct 16, 2012
Priority date	—
Expiry date	Nov 28, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH05B2203/033
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a heating element (20), in particular for heating user contact surfaces of a passenger compartment of a vehicle, comprising a) at least one heating zone in which at least one first electrical conductor strand is disposed for heating a passenger of the automotive vehicle; b) at least one additional second conductor strand for supplying electrical energy into the at least one first conductor strand for heating the heating zone; c) a contact area in which the at least one additional second conductor strand is connected, in an electrically conductive manner, to the at least one first conductor strand for heating the heating zone; and wherein at least one of the first or second conductor strands includes at least one filament-like inner strand core comprising a polyamide, a carbon fiber, a polypropylene, or a polyester and at least one jacket layer that includes silver, copper, gold, nickel, or an alloy thereof.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.