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. 01, 2000
Filed:
Dec. 07, 1998
Applicant:
Inventors:
Thomas S Katra, Fayetteville, NY (US);
Richard J Wood, North Syracuse, NY (US);
Assignee:
Carrier Corporation, Syracuse, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ;
U.S. Cl.
CPC ...
62175 ; 622284 ; 62296 ;
Abstract
In a refrigeration or air conditioning system employing two positive displacement compressors, one compressor has its speed controlled to exactly match the speed of the other compressor whereby beats between pressure pulsations, structural vibrations and radiated sound are minimized.