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:
Jan. 24, 2012
Filed:
Dec. 22, 2008
Applicant:
Jerzy Makuszewski, Mississauga, CA;
Inventor:
Jerzy Makuszewski, Mississauga, CA;
Assignee:
Pratt & Whitney Canada Corp., Longueuil, QC, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 25/00 (2006.01); F02C 7/00 (2006.01); B23P 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A rotor for a gas turbine engine having a stub shaft and an axis of rotation, the rotor including a turbine hub clamped to a coaxial tie shaft with a tie shaft nut, the stub shaft comprising: a hollow stub shaft body extending rearwardly axially of the turbine; a forward portion of the stub shaft body disposed radially outwardly of the tie shaft nut and removably mounted to a rearward portion of the turbine; and a rearward portion of the stub shaft body including an inner bearing race mounting surface.