The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2003
Filed:
Dec. 31, 2002
Applicant:
Inventors:
Erwin Wachter, Zürich, CH;
Klaus Zoss, Uster, CH;
Bruno Andreoli, Uerikon, CH;
Werner Seglias, Uerikon, CH;
Assignee:
Von Roll Umwelttechnik AG, Zürich, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27D 1/02 ;
U.S. Cl.
CPC ...
F27D 1/02 ;
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.