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:
Sep. 07, 1999
Filed:
Mar. 23, 1998
Applicant:
Inventors:
Shigeo Oda, Toyokawa, JP;
Kimikazu Kaneto, Toyohashi, JP;
Ryoji Kanayama, Toyohashi, JP;
Kuniyasu Mori, Toyokawa, JP;
Kazuo Sugimoto, Toyokawa, JP;
Assignee:
Sintokogio, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D / ; B22C / ;
U.S. Cl.
CPC ...
164456 ; 164 37 ; 164172 ; 164169 ;
Abstract
Molding sand filled in a space defined by a pattern plate and a flask is pre-compacted before the molding sand is completely pressed. A pre-compacting member is inserted into the molding sand toward the pattern plate, and then is stopped based on a predetermined depth of the pre-compacting member in the molding sand or a predetermined pressure caused by the pre-compacting member in the molding sand.