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. 03, 2009
Filed:
Mar. 21, 2007
Brian Peter Arness, Simpsonville, SC (US);
Graham David Sherlock, Greenville, SC (US);
Joseph Leonard Moroso, Greenville, SC (US);
Stewart William Beitz, Greenville, SC (US);
Graydon Wayne Peters, Humble, TX (US);
Brian Peter Arness, Simpsonville, SC (US);
Graham David Sherlock, Greenville, SC (US);
Joseph Leonard Moroso, Greenville, SC (US);
Stewart William Beitz, Greenville, SC (US);
Graydon Wayne Peters, Humble, TX (US);
General Electric Company, Schenectady, NY (US);
Abstract
A trailing edge coupon for the trailing edge of a airfoil of a turbine nozzle segment is welded to an airfoil section of the nozzle segment having a damaged trailing edge portion removed. The coupon includes film cooling holes spaced one from the other along a pressure side wall portion of the coupon and a plurality of radially spaced openings along the trailing edge. By welding the pressure and suction side edges of the coupon to the pressure and side edges of the remaining portion of the airfoil, the operating life of the nozzle is extended.