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. 14, 2014
Filed:
Aug. 25, 2009
Applicant:
Ralf-joachim Gerlach, Krefeld, DE;
Inventor:
Ralf-Joachim Gerlach, Krefeld, DE;
Assignee:
Minelco GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C 9/02 (2006.01); B22C 9/10 (2006.01); B22C 1/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A core or foundry sand that can be used for the production of cores and casting molds for the casting of molten metals includes a basic molding material, a layer of an adhesive agent coating the basic molding material, and a layer of water glass lying over the adhesive agent layer. The core or foundry sand has a water content in the range of ≦ approximately 0.25% by weight to approximately 0.9% by weight in relation to the overall weight of the core or foundry sand.