Patent · US Expired

Vitrification furnace with a gas light seal

US5809056A · kind A · utility

0Cited by

8References

4Claims

0Family size

Assignee

ABB K.K. · JP

Inventors

Helge Jansen · Friedland, DE
Ludwig Weiler · Heidelberg, DE
Christian Wieckert · Seon, CH

Key dates

Filing date	Dec 26, 1995
Grant date	Sep 15, 1998
Priority date	—
Expiry date	Dec 26, 2015

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF27D11/02
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A Deglor furnace includes heating elements each having a heater rod being surrounded by a protective tube. The protective tube is mounted on a ceiling of the Deglor furnace and is run through an opening in the ceiling into the interior of the Deglor furnace. Heat insulation of the ceiling which borders the opening is protected against corrosive gases from the interior by a shield.

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