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:
Apr. 24, 2018
Filed:
Nov. 19, 2015
Applicant:
General Electric Company, Schenectady, NY (US);
Inventors:
Xi Yang, Mason, OH (US);
John Thomas Leman, Schenectady, NY (US);
Anthony Yu-Chung Ku, Rexford, NY (US);
Tao Li, Blue Ash, OH (US);
John Pollinger, Niskayuna, NY (US);
Assignee:
GENERAL ELECTRIC COMPANY, Schenectady, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C 9/10 (2006.01); C04B 35/10 (2006.01);
U.S. Cl.
CPC ...
B22C 9/10 (2013.01); C04B 35/10 (2013.01);
Abstract
The present disclosure generally relates to a ceramic core comprising predominantly mullite, which is derived from a precursor comprising alumina particles and siloxane binders. Free silica is present in the ceramic body, but is largely unavailable for reaction with metal alloys used in investment casting. Methods of making cast metal articles are also disclosed.