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. 28, 1989
Filed:
Dec. 05, 1988
Applicant:
Inventors:
Kunio Matsui, Yokohama, JP;
Hisahiko Fukase, Tokyo, JP;
Atsushi Hirata, Hiratsuka, JP;
Akihiro Nomura, Yokohama, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D / ;
U.S. Cl.
CPC ...
164428 ; 164477 ; 164438 ; 164400 ;
Abstract
The flow rate of melt flowing through each end face of a core toward the inner surface of a side dam in opposed relationship with each end face is variable by a side-dam-wise flow passage defined within the core, whereby various problems caused at the so-called triple-point zones can be substantially solved.