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:
Mar. 27, 1979
Filed:
Jul. 28, 1977
Applicant:
Inventor:
Donald H Regelin, Pittsburgh, PA (US);
Assignee:
Zimmermann & Jansen, Duren, DE;
Primary Examiner:
Int. Cl.
CPC ...
C21B / ;
U.S. Cl.
CPC ...
266197 ;
Abstract
Summarizing, the present invention provides a hot blast or hot gas valve, particularly for a blast furnace, comprising a liquid or water cooled valve disc adapted to be moved axially for adjustment, wherein said valve disc is formed to be arched unilaterally towards the side of said valve to be shut off, said valve disc including around the sealing edge thereof a hollow section through which coolant flows, and the concave side of said valve disc opposite from the closure side of said valve being covered by a layer or lining of a refractory material, particularly by a ceramic brickwork, within the area enclosed, for instance, by said water cooled hollow section.