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:
May. 29, 1990
Filed:
Jun. 21, 1988
Applicant:
Inventors:
Fritz-Peter Pleschiutschnigg, Duisburg, DE;
Gerd Moellers, Oberhausen, DE;
Hans-Georg Eberhardt, Duisburg, DE;
Werner Rahmfeld, Muelheim, DE;
Lothar Parschat, Ratingen, DE;
Hans-Juergen Ehrenberg, Duesseldorf, DE;
Assignee:
Mannesmann AG, Duesseldorf, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D / ;
U.S. Cl.
CPC ...
164418 ; 164459 ;
Abstract
Seen against the direction of casting, the narrow width dimension of a mold is widened through appropriate surface contour, at least in the mold center, to facilitate charging of the mold whereby the lower portions of the longitudinal walls of the mold are essentially parallely curved while in the upper portion at least one of the walls tangentially merges into the pour-in portion of the mold.