Patent · US Expired

Coolable arched roof

US6655955B2 · kind B2 · utility

3Cited by

10References

21Claims

0Family size

Assignee

Von Roll Umwelttechnik AG · DE

Inventors

Erwin Wachter · Ellingen, DE
Klaus Zoss · Uster, CH
Bruno Andreoli · Pfäffikon, CH
Werner Seglias · Pfäffikon, CH

Key dates

Filing date	Dec 31, 2002
Grant date	Dec 2, 2003
Priority date	—
Expiry date	Dec 31, 2022

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF23M5/08
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A coolable arched roof for a high-temperature melting furnace having a furnace interior. At least the following layers are present on that side of a layer of refractory bricks, which is remote from the furnace interior: a sealing layer, which is used to seal the furnace interior against the leakage or penetration of gas; an insulation layer having a thermally insulating action; and a cooling layer, which is designed to carry a cooling fluid. The arrangement of layers results in an increased gastightness and prevents premature aging of the refractory bricks.

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