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:
Mar. 01, 2016
Filed:
Dec. 07, 2010
Gary B. Merrill, Orlando, FL (US);
Andrew J. Burns, Longwood, FL (US);
Michael P. Appleby, Crozet, VA (US);
Iain A. Fraser, Ruckersville, VA (US);
John R. Paulus, Afton, VA (US);
Gary B. Merrill, Orlando, FL (US);
Andrew J. Burns, Longwood, FL (US);
Michael P. Appleby, Crozet, VA (US);
Iain A. Fraser, Ruckersville, VA (US);
John R. Paulus, Afton, VA (US);
Siemens Energy, Inc., Orlando, FL (US);
Mikro Systems, Inc., Charlottesville, VA (US);
Abstract
An investment casting process for a hollow component such as a gas turbine blade utilizing a ceramic core () that is cast in a flexible mold () using a low pressure, vibration assisted casting process. The flexible mold is cast from a master tool () machined from soft metal using a relatively low precision machining process, with relatively higher precision surfaces being defined by a precision formed insert () incorporated into the master tool. A plurality of identical flexible molds may be formed from a single master tool in order to permit the production of ceramic cores at a desired rate with a desired degree of part-to-part precision.