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:
Sep. 28, 1999
Filed:
Nov. 08, 1996
Applicant:
Inventors:
Jack Lewis Stolz, Allentown, PA (US);
Mark Allen Story, Kutztown, PA (US);
Assignee:
Air Products and Chemicals, Inc., Allentown, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417 53 ; 417312 ; 417313 ; 417540 ; 417542 ;
Abstract
A gas pulsation and noise reduction system for positive displacement blowers and compressors. A resonator is placed in one or both of the inlet and outlet conduits of the blower or compressor. The resonator is sized to damp out gas pulsations by providing a reflected wave 180.degree. out of phase with the gas pulsation in the associated conduit. Multiple resonators can be used in one or both conduits to dampen gas pulsations of different frequencies.