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:
Dec. 08, 1998
Filed:
Sep. 26, 1997
Applicant:
Inventors:
David N Shaw, New Britain, CT (US);
Giridhari L Agrawal, Simsbury, CT (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ; F04B / ;
U.S. Cl.
CPC ...
62175 ; 62201 ; 622284 ; 417-5 ;
Abstract
A plurality of variable speed centrifugal compressors operated in parallel form an HVAC or refrigeration system. The compressors are operated at proportionally synchronized speeds throughout their range of operation.
Shaw, David. (1998). Variable speed parallel centrifugal compressors for hvac and (U.S. Patent No. 5845509). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5845509
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile