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:
Nov. 29, 2011
Filed:
Jun. 07, 2007
Michael F. Blair, Manchester, CT (US);
Michael F. Blair, Manchester, CT (US);
United Technologies Corporation, Harford, CT (US);
Abstract
A casting includes a wall thickness check feature for measuring thickness of a wall second aside an in-wall cooling passageway. The thickness is determined by observing the existence and/or size of an opening formed by the feature. The casting is cast from a pattern including portions forming the feature. To manufacture the pattern, a pattern-forming die is assembled with a ceramic feedcore and a refractory metal core (RMC). The assembling leaves an inlet portion of the RMC engaged to the ceramic feedcore and leaves an outlet portion of the RMC engaged to the die. A pattern-forming material is molded in the die at least partially over the ceramic feedcore and RMC. The die is disengaged from the pattern-forming material. The assembling engages a stepped projection of the RMC with a mating surface of the die.