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:
Feb. 19, 2019
Filed:
Jan. 27, 2014
Applicant:
United Technologies Corporation, Hartford, CT (US);
Inventors:
Mario Bochiechio, Vernon, CT (US);
Charles R. Watson, Windsor, CT (US);
Assignee:
UNITED TECHNOLOGIES CORPORATION, Hartford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22C 1/08 (2006.01); B22C 1/02 (2006.01); B22C 9/04 (2006.01); B22C 9/02 (2006.01); B22C 9/22 (2006.01);
U.S. Cl.
CPC ...
B22C 1/08 (2013.01); B22C 1/02 (2013.01); B22C 9/02 (2013.01); B22C 9/04 (2013.01); B22C 9/22 (2013.01);
Abstract
An investment mold includes a mold cavity and a refractory investment wall that bounds at least a portion of the mold cavity. At least a portion of the refractory investment wall includes a plurality of fugitive beads. The fugitive beads can be sacrificed to provide voids that control the strength of the refractory investment wall such that the wall fractures at the voids during investment casting to alleviate stress on a solidified metal cast in the mold cavity.