Patent · US Expired

Electric heating apparatus with housing

US7012225B2 · kind B2 · utility

11Cited by

4References

50Claims

0Family size

Assignee

Catem GmbH & Co. KG · DE

Inventors

Franz Bohlender · Kandel, DE
Kurt Walz · Hagenbach, DE

Key dates

Filing date	Apr 30, 2004
Grant date	Mar 14, 2006
Priority date	—
Expiry date	Apr 30, 2024

Classification

Technology area (CPC H)Electricity
CPC primaryH05B2203/02
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Electric heating apparatus and manufacturing method for an electric heating apparatus, wherein prefabricated constructional units are used. The prefabricated constructional units consist of PTC heating elements fastened to contact sheets by means of a lacquer. This simplifies production and enhances protection against corrosion.

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