Patent · US Expired

Heating element combined glass/enamel overcoat

US4713530A · kind A · utility

16Cited by

7References

7Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Hans-Joachim Schittenhelm · Neunburg vorm Wald, DE
Werner Joseph · Cologne, DE
Gerhard Trogel · Leverkusen, DE

Key dates

Filing date	Sep 26, 1986
Grant date	Dec 15, 1987
Priority date	—
Expiry date	Sep 26, 2006

Classification

Technology area (CPC H)Electricity
CPC primaryH05B3/18
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A panel heating element comprising (a) a metal substrate, (b) an aluminum boron-silicate insulating glass which forms a coating on the metal substrate, (c) one or more metallic resistance tracks applied to the substrate and (d) a mixture of a zirconium phosphate glass and a boron-titanium enamel which is applied as a layer over the metallic resistance tracks.

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