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:
Oct. 17, 1989
Filed:
Sep. 26, 1988
Applicant:
Inventor:
Ronald L Schwenninger, Ridgeley, WV (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27D / ;
U.S. Cl.
CPC ...
432247 ; 432252 ; 110180 ;
Abstract
A refractory clad lid for heating vessel is disclosed. The lid includes a plurality of refractory blocks supported from a hollow metal paney by an interlocking dovetailed joint configuration at the panel/block interface. Coolant is circulated through the panel to control lid temperature and reduce block water.