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:
Jul. 31, 2007
Filed:
Aug. 31, 2005
Nicholas Charles Palmer, Loveland, OH (US);
Kevin Lee Kirkeng, Milford, OH (US);
Ching-pang Lee, Cincinnati, OH (US);
Nicholas Charles Palmer, Loveland, OH (US);
Kevin Lee Kirkeng, Milford, OH (US);
Ching-Pang Lee, Cincinnati, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
A hollow turbine airfoil includes pressure and suction sidewalls extending in span between a root and tip and extending in chord between opposite leading and trailing edges. The pressure sidewall includes a first pattern of first holes distributed in span and chord over a majority thereof, and a second pattern of different second holes also distributed in span and chord over a minority of the pressure sidewall between the tip and the midspan of the airfoil.