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:
Jul. 10, 2018
Filed:
Nov. 25, 2014
Applicant:
Kobe Steel, Ltd., Hyogo, JP;
Inventors:
Kazuyuki Tsutsumi, Kobe, JP;
Yusaku Takagawa, Kobe, JP;
Assignee:
Kobe Steel, Ltd., Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C 9/10 (2006.01); B22C 13/04 (2006.01); B22C 13/14 (2006.01); B22C 7/06 (2006.01); B22C 1/22 (2006.01); B22C 9/02 (2006.01); B22C 1/10 (2006.01); B22C 9/12 (2006.01);
U.S. Cl.
CPC ...
B22C 9/10 (2013.01); B22C 1/10 (2013.01); B22C 1/22 (2013.01); B22C 7/06 (2013.01); B22C 9/02 (2013.01); B22C 9/12 (2013.01); B22C 13/04 (2013.01); B22C 13/14 (2013.01);
Abstract
When a core die is being removed from a core while being rotated around its axis, the hardening time of self-hardening sand, the frictional forces generated between the core and the core die during die removal, and the strength of the core during die removal are optimized.