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:
Jan. 08, 1991
Filed:
Sep. 01, 1989
Applicant:
Inventor:
Wendelin Weimann, Klettgau, DE;
Assignee:
Georg Fischer AG, Schaffhausen, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D / ; B22D / ; B22C / ;
U.S. Cl.
CPC ...
164130 ; 164131 ; 164324 ;
Abstract
A molding process and an apparatus wherein the molds produced in a molding machine are sent past a casting apparatus where casting takes place. Thereafter, the molds with the molding boxes surrounding them, pass through a primary cooling line, at the end of which molds and molding boxes are separated. The molding boxes are returned to the molding machine, while the sand molds with the castings pass through a secondary cooling zone for further cooling. The process allows for a substantially smaller number of molding boxes than previously known molding processes.