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:
Feb. 28, 2012
Filed:
Mar. 11, 2009
Mark Joseph Mielke, Blanchester, OH (US);
Andrew Breeze-stringfellow, Cincinnati, OH (US);
David Scott Clark, Liberty Township, OH (US);
James Edwin Rhoda, Mason, OH (US);
Gary Robert Peters, Cincinnati, OH (US);
Mark Joseph Mielke, Blanchester, OH (US);
Andrew Breeze-Stringfellow, Cincinnati, OH (US);
David Scott Clark, Liberty Township, OH (US);
James Edwin Rhoda, Mason, OH (US);
Gary Robert Peters, Cincinnati, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
A variable stator vane airfoil is mounted on a button centered about a rotational axis and includes circular leading and trailing edges circumscribed about the rotational axis at a button radius. Contoured pressure and suction sides extend from the circular leading edge to the circular trailing edge and are recessed inwardly from a perimeter circumscribed about the rotational axis at the button radius. One of upstream and downstream pressure side portions of the contoured pressure side is straight and another of the upstream and downstream pressure side portions is convexly curved. One of the upstream and downstream suction side portions is straight and another of the upstream and downstream suction side portions is convexly curved. One of the upstream pressure side portion and upstream suction side portion is straight and another of the upstream pressure side portion and upstream suction side portion is convexly curved.