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:
Nov. 11, 2008
Filed:
Feb. 21, 2007
Applicants:
Ronald Trumper, St. Bruno, CA;
Stephan Arthur Anderson, Verdun, CA;
Kevin Allan Dooley, Mississauga, CA;
Joseph Horace Brand, Mississauga, CA;
Inventors:
Ronald Trumper, St. Bruno, CA;
Stephan Arthur Anderson, Verdun, CA;
Kevin Allan Dooley, Mississauga, CA;
Joseph Horace Brand, Mississauga, CA;
Assignee:
Pratt & Whitney Canada Corp., Longueuil, Quebec, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 6/08 (2006.01); F02K 3/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A device is provided which can serve one or more of the multiple functions of impeding rotation of a shaft de-coupled turbine rotor, selectively impeding rotation of a first spool of the engine, for example to permit a second spool to generate power for use in ground operation, and facilitating reduced aircraft ground speed.