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. 29, 1992
Filed:
May. 30, 1991
Applicant:
Inventors:
Donald P Flading, Manor Boro, PA (US);
Robert S Mavretish, New Stanton, PA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27B / ; F16J / ;
U.S. Cl.
CPC ...
432115 ; 432117 ; 432118 ; 110246 ;
Abstract
A circumferential seal system wherein both low differential pressure circumferential seals and high differential pressure circumferential seals are utilized to provide the proper sealing for various wind box plenum zones supplying combustion air to a rotary combustor utilized to effectively burn solid municipal waste and maintain acceptable levels of CO even when there are large swings in the moisture content and heating value of the solid municipal waste.