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:
Aug. 22, 2006
Filed:
Jan. 31, 2003
Gayle M. Bowles, Madisonville, KY (US);
Gary E. Wheat, Madisonville, KY (US);
William L. Sheyer, Madisonville, KY (US);
Gayle M. Bowles, Madisonville, KY (US);
Gary E. Wheat, Madisonville, KY (US);
William L. Sheyer, Madisonville, KY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A system and method are provided for inspecting cooling holes of a completed, lasered, and deburred turbine airfoil. The cooling holes are covered with a very porous tape before placing the turbine airfoil into an air fixture that has a metered amount of fluorescent liquid dripped into the airline. The atomized fluorescent liquid flows through the turbine airfoil internal cavities, exiting through the open cooling holes, where it is absorbed by the porous tape. A pattern will appear on the tape surface, in the area of the open holes, indicative of the presence of not-through or plugged cooling holes.