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. 24, 2015
Filed:
Oct. 07, 2013
Applicant:
Sikorsky Aircraft, Stratford, CT (US);
Inventors:
Jonathan Bremmer, Glastonbury, CT (US);
Shihong G. Song, Cheshire, CT (US);
Jeffrey G. Sauer, Woodbury, CT (US);
James S. Giampapa, Oxford, CT (US);
Assignee:
SIKORSKY AIRCRAFT CORPORATION, Stratford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C 9/10 (2006.01); B22C 9/24 (2006.01); B22D 29/00 (2006.01); B22D 25/02 (2006.01);
U.S. Cl.
CPC ...
B22C 9/10 (2013.01); B22C 9/103 (2013.01); B22C 9/24 (2013.01); B22D 25/02 (2013.01); B22D 29/001 (2013.01);
Abstract
A composite core for forming a passage in an investment casting mold is provided including a core element. A generally hollow structural element is positioned about an exterior of the core element. The structural element is configured to deform when a force is applied to the structural element. A rigid shell element is integrally formed about the structural element. The shell element is configured to break when the structural element deforms.