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:
Jan. 25, 2005
Filed:
Nov. 13, 2003
Applicants:
Xi Yang, Muskegon, MI (US);
Boyd A. Mueller, Whitehall, MI (US);
Inventors:
Xi Yang, Muskegon, MI (US);
Boyd A. Mueller, Whitehall, MI (US);
Assignee:
Howmet Research Corporation, Whitehall, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C 102 ; B22C 904 ;
U.S. Cl.
CPC ...
Abstract
A method of making a ceramic shell mold comprises repeatedly coating a fugitive pattern of an article to be cast with a ceramic slurry layer and applying on the ceramic slurry layer a refractory stucco to form a plurality of ceramic slurry layers and stucco layers on the pattern wherein at least one of the stucco layers is formed by applying discontinuous stucco fiber bundles held together in the bundles by a fugitive binder, which is removed during subsequent firing of the shell mold at elevated temperature.