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:
May. 03, 1994
Filed:
Sep. 23, 1992
Applicant:
Inventors:
Daniel R Higgins, Tigard, OR (US);
Robert B Hill, Beaverton, OR (US);
Kenneth A Pingel, Hillsboro, OR (US);
Assignee:
Anthony-Ross Company, Beaverton, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F23L / ;
U.S. Cl.
CPC ...
1101825 ; 15246 ; 422185 ;
Abstract
Damper apparatus for air ports of a chemical recovery furnace is mounted on a removable windbox faceplate. Damper blades extend from a cantilevered arm pivoted at the forward side of the faceplate, with the damper blades being otherwise unsupported, i.e., they are not confined to travel in tracks within the windbox. Rather, a counterweight urges the damper blades against the air port opening whereby the whole mechanism is free for removal as a unit with the faceplate. Cooperatively operable air port cleaning apparatus is also mounted on the faceplate.