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.

Date of Patent:
Mar. 20, 2012

Filed:

Nov. 21, 2008
Applicants:

Raymond Surace, Newington, CT (US);

Justin D. Piggush, Hartford, CT (US);

Tracy A. Propheter-hinckley, Manchester, CT (US);

Amarnath Ramlogan, Glastonbury, CT (US);

Yongxiang D. Xue, Glastonbury, CT (US);

Anthony P. Cherolis, East Hartford, CT (US);

Matthew A. Devore, Manchester, CT (US);

Eric P. Letizia, East Hartford, CT (US);

Inventors:

Raymond Surace, Newington, CT (US);

Justin D. Piggush, Hartford, CT (US);

Tracy A. Propheter-Hinckley, Manchester, CT (US);

Amarnath Ramlogan, Glastonbury, CT (US);

Yongxiang D. Xue, Glastonbury, CT (US);

Anthony P. Cherolis, East Hartford, CT (US);

Matthew A. Devore, Manchester, CT (US);

Eric P. Letizia, East Hartford, CT (US);

Assignee:

United Technologies Corporation, Hartford, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 5/18 (2006.01);
U.S. Cl.
CPC ...
Abstract

The pattern has a pattern material and a casting core combination. The pattern material has an airfoil. The casting core combination is at least partially embedded in the pattern material. The casting core combination comprises a plurality of metallic casting cores. Each metallic casting core has opposite first and second faces and a respective portion along the trailing edge of the airfoil. At least two of the metallic cores have sections offset between the pressure side and the suction side.


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