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. 01, 2019
Filed:
May. 28, 2014
Applicant:
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Inventors:
Hidetaka Oguma, Tokyo, JP;
Kazutaka Mori, Tokyo, JP;
Ikuo Okada, Tokyo, JP;
Sachio Shimohata, Tokyo, JP;
Assignee:
MITSUBISH HEAVY INDUSTRIES, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C 9/10 (2006.01); B22C 3/00 (2006.01); B22C 9/02 (2006.01); B22C 9/04 (2006.01); B22C 9/12 (2006.01); B22C 9/24 (2006.01);
U.S. Cl.
CPC ...
B22C 9/10 (2013.01); B22C 3/00 (2013.01); B22C 9/02 (2013.01); B22C 9/04 (2013.01); B22C 9/12 (2013.01); B22C 9/24 (2013.01);
Abstract
A coating layer including solely silicon alkoxide or mixed alkoxide of silicon alkoxide and aluminum alkoxide is formed on a surface of a sintered precision-casting core body mainly including silica particles so as to seal holes formed in the surface. As a result, it is possible to prevent the breakage of the core during casting.