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. 05, 2015
Filed:
Jul. 09, 2012
Glenn Levasseur, Colchester, CT (US);
Edward F. Pietraszkiewicz, Southington, CT (US);
Mark F. Zelesky, Bolton, CT (US);
Dominic J. Mongillo, Jr., West Hartford, CT (US);
Kevin J. Klinefelter, Uncasville, CT (US);
Stephen D. Doll, Portland, CT (US);
Markus W. Fritch, Manchester, CT (US);
Glenn Levasseur, Colchester, CT (US);
Edward F. Pietraszkiewicz, Southington, CT (US);
Mark F. Zelesky, Bolton, CT (US);
Dominic J. Mongillo, Jr., West Hartford, CT (US);
Kevin J. Klinefelter, Uncasville, CT (US);
Stephen D. Doll, Portland, CT (US);
Markus W. Fritch, Manchester, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
A method for forming a cooling hole extending from an inlet on a first surface of a wall to an outlet on a second surface of the wall includes forming a diffusing section of the cooling hole, and a trailing edge on the outlet by electrical discharge machining, and forming longitudinal lobes in the diffusing section. The metering section extends from the inlet on a first surface of the wall towards the second surface of the wall. The diffusing section extends from the outlet to one end of a metering section located between the inlet and the outlet. The outlet is substantially linear or convex at the trailing edge and the lobes are separated by longitudinal ridges.