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. 20, 1992
Filed:
Feb. 24, 1992
Applicant:
Inventors:
Gary J Anderson, Sidney, OH (US);
James W Bush, Skaneateles, NY (US);
Assignee:
Copeland Corporation, Sidney, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01C / ; F01C / ; F16J / ;
U.S. Cl.
CPC ...
418 554 ; 418 555 ; 418 57 ; 277 37 ; 277 38 ; 277 47 ; 277 / ;
Abstract
A scroll machine utilizing working fluid under pressure to enhance axial sealing, including several embodiments of a multi-function floating seal to isolate the axial biasing fluid, and provide vacuum protection and a degree of high pressure ratio protection.