Patent · US Expired

Graphite holding elements for heating bars in industrial furnaces

US4870256A · kind A · utility

4Cited by

3References

4Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Wolfgang Heise · Holzminden, DE
Georg Kell · Frankfurt am Main, DE
Rolf Schuster

Key dates

Filing date	Jun 3, 1988
Grant date	Sep 26, 1989
Priority date	—
Expiry date	Jun 3, 2008

Classification

Technology area (CPC H)Electricity
CPC primaryH05B3/66
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A holding element for heating bars in industrial furnaces must be as flexible as possible so that it can accommodate the thermal expansion of the heating bars. Circular rings or circular-ring sectors provided with bores and made from a flexible graphite laminate plate are used for this purpose.

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