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:
Jan. 29, 1991
Filed:
Feb. 08, 1990
Applicant:
Inventor:
Jaroslav Blass, Sidney, OH (US);
Assignee:
Copeland Corporation, Sidney, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417312 ; 417542 ; 417902 ; 181403 ;
Abstract
A hermetic motor-compresosr having separate discharge cavities in the compressor body for each pumping cylinder, a common discharge gas plenum for the entire compressor, and an impedance tube between each cavity and said plenum, thereby signficantly improving the sound attentuation of discharge gas pulses.