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:
Feb. 27, 1990
Filed:
Aug. 02, 1988
Applicant:
Inventors:
Howard H Fraser, Jr, Lafayette, NY (US);
William R Lane, Dewitt, NY (US);
Shahrokh Etemad, East Syracuse, NY (US);
Assignee:
Carrier Corporation, Syracuse, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417312 ; 418 55 ;
Abstract
A multi-functional, single member serves as a muffler to attenuate noise, as a separator plate between the suction and discharge gases/pressures, and to carry check valve structure to avoid reverse rotation and for efficiency enhancement at off-design conditions.