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:
May. 08, 2012
Filed:
Nov. 26, 2008
Rafal Piotr Pieczka, Wodzislaw Slaski, PL;
Craig William Higgins, Liberty Township, OH (US);
Piotr Edward Kobek, Warsaw, PL;
Jan Franciszek Sikorski, Warsaw, PL;
Edward Donald Michaels, Mason, OH (US);
Rafal Piotr Pieczka, Wodzislaw Slaski, PL;
Craig William Higgins, Liberty Township, OH (US);
Piotr Edward Kobek, Warsaw, PL;
Jan Franciszek Sikorski, Warsaw, PL;
Edward Donald Michaels, Mason, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
A method and system for a rotatable member of a turbine engine are provided. The rotatable member includes a substantially cylindrical shaft rotatable about a longitudinal axis, and a hub coupled to the cylindrical shaft through a conical shaft portion wherein the conical shaft portion includes a plurality of circumferentially-spaced air passages and wherein at least one of the plurality of air passages includes a non-circular cross section.