Patent · US Active

Heat-generating element of a heating device

US7576305B2 · kind B2 · utility

3Cited by

9References

7Claims

0Family size

Assignee

Catem GmbH & Co. KG · DE

Inventors

Michael Zeyen · Herxheim, DE
Kurt Walz · Hagenbach, DE
Michael Niederer · Bad Bergzabern, DE
Franz Bohlender · Kandel, DE

Key dates

Filing date	Mar 7, 2007
Grant date	Aug 18, 2009
Priority date	—
Expiry date	Apr 10, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH05B2203/023
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A heat-generating element of a heating device for heating air including at least one PTC element, electric strip conductors lying on the PTC elements and a longish positioning frame that forms at least one frame opening for holding the minimum of one PTC element. A heat-generating element that is improved with a view to safety from electric flashovers and leakage currents is created with the invention under consideration by providing at least one insulating layer, which covers the strip conductor on its exterior side that is turned away from the positioning frame. The insulating layer in any case is sealed against the long sides of the positioning frame by a compressible sealing bead. A heating device for heating air with multiple heat-generating elements is also disclosed.

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