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:
Apr. 07, 1992
Filed:
May. 23, 1990
Applicant:
Inventors:
Jaroslav Blass, Sidney, OH (US);
Hubert Bukac, Sidney, OH (US);
Assignee:
Copeland Corporation, Sidney, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
181240 ; 181403 ;
Abstract
A compressor discharge gas muffler comprising a single expansion chamber and an impedence tube for attenuation the fundamental low frequency discharge gas pulses, and a side outlet positioned to attenuate higher frequencies. A method of attenuation is also disclosed.