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, 2009
Filed:
Nov. 08, 2004
Applicants:
Douglas Allan Roberts, Cambridge, CA;
André Denis Leblanc, St-Bruno, CA;
Suresh Chandra Kacker, Oakville, CA;
Peter Ralph Townsend, Mississauga, CA;
Ioan Sasu, Brossard, CA;
Inventors:
Douglas Allan Roberts, Cambridge, CA;
André Denis LeBlanc, St-Bruno, CA;
Suresh Chandra Kacker, Oakville, CA;
Peter Ralph Townsend, Mississauga, CA;
Ioan Sasu, Brossard, CA;
Assignee:
Pratt & Whitney Canada Corp., Longueuill, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 9/04 (2006.01); F04D 29/44 (2006.01);
U.S. Cl.
CPC ...
Abstract
A centrifugal compressor includes an impeller and a diffuser, the diffuser having a plurality of descrete D-shaped passages intersecting each other.