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. 20, 2007
Filed:
Dec. 22, 2004
Bernard Patrick Bewlay, Schenectady, NY (US);
Laurent Cretegny, Niskayuna, NY (US);
Michael Francis Xavier Gigliotti, Jr., Scotia, NY (US);
Roger John Petterson, Guilderland, NY (US);
Ann Melinda Ritter, Niskayuna, NY (US);
Stephen Francis Rutkowski, Duanesburg, NY (US);
Bernard Patrick Bewlay, Schenectady, NY (US);
Laurent Cretegny, Niskayuna, NY (US);
Michael Francis Xavier Gigliotti, Jr., Scotia, NY (US);
Roger John Petterson, Guilderland, NY (US);
Ann Melinda Ritter, Niskayuna, NY (US);
Stephen Francis Rutkowski, Duanesburg, NY (US);
General Electric Company, Niskayuna, NY (US);
Abstract
A shell mold for casting molten material to form an article is described. The mold includes a shell for containing the molten material, formed from at least one of yttrium silicates, zirconium silicates, hafnium silicates, and rare earth silicates. The mold also includes a facecoat disposed on an inner surface of the shell that contacts the molten material. The facecoat can be made from the materials described above. A method of casting a niobium-silicide article is also described, using the shell mold described herein. A method of making the ceramic shell mold is described as well, along with a slurry composition used in the manufacture of the shell mold.