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:
Dec. 22, 2015

Filed:

Nov. 24, 2014
Applicant:

Mikro Systems, Inc., Charlottesville, VA (US);

Inventors:

Ching-Pang Lee, Cincinnati, OH (US);

Gary B. Merrill, Orlando, FL (US);

Andrew J. Burns, Longwood, FL (US);

Assignees:

Mikro Systems, Inc., Charlottesville, VA (US);

Siemens Energy, Inc., Orlando, FL (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B22C 7/02 (2006.01); B22C 9/04 (2006.01); B22C 9/10 (2006.01); B22C 9/22 (2006.01); B22D 17/00 (2006.01); B22D 29/00 (2006.01);
U.S. Cl.
CPC ...
B22C 9/043 (2013.01); B22C 7/02 (2013.01); B22C 7/026 (2013.01); B22C 9/04 (2013.01); B22C 9/22 (2013.01); B22D 17/00 (2013.01); B22D 29/00 (2013.01); Y10T 428/12361 (2015.01);
Abstract

A method of casting a component () having convoluted interior passageways (). A desired three dimensional structure corresponding to a later-formed metal alloy component is formed by stacking a plurality of sheets () of a fugitive material. The sheets contain void areas () corresponding to a desired interior passageway in the metal alloy component. A ceramic slurry material is cast into the three dimensional structure to form either a ceramic core () or a complete ceramic casting vessel (). If just a ceramic core is formed, a wax pattern is formed around the ceramic core and an exterior ceramic shell () is formed around the wax pattern by a dipping process prior to the removal of the fugitive material and wax. An alloy component having the desired interior passageway is cast into the casting vessel after the fugitive material is removed.


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