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. 14, 1989
Filed:
Apr. 29, 1988
Applicant:
Inventor:
Noriyuki Motomura, Zama, JP;
Assignee:
Toshiba Kikai Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22D / ; B22D / ;
U.S. Cl.
CPC ...
1641471 ; 164305 ;
Abstract
In a casting apparatus, an electromagnetic pump is installed above a mold cavity. A molten metal contained in a crucible is forced into the mold cavity. The electromagnetic pump acts not only to exhaust gas or air in the mold cavity but also applies a downward force to the molten metal rising above the upper surface of the mold cavity.