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. 09, 1989
Filed:
Oct. 05, 1987
Applicant:
Inventor:
Kurt Fischer, Schaffhausen, CH;
Assignee:
Georg Fischer AG, Schaffhausen, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C / ;
U.S. Cl.
CPC ...
164169 ; 164200 ; 164239 ;
Abstract
A molding appartus for use in the production of a casting mold from a granular molding material wherein the space between the pattern and the mold frame is provided with a plurality of orifices such that the sum of the area of the orifices is at least 1% the area of pattern plate between the pattern and the mold frame so as to allow for a flow through rate of air through the orifices of at least 0.005 kg/sec.