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:
Apr. 04, 1989
Filed:
Aug. 22, 1986
Applicant:
Inventors:
Norbert Damm, Karlsdorf-Neuthard, DE;
Thomas Parr, Karlsruhe, DE;
Assignee:
BMD Badische Maschinenfabrik Durlach GmbH, Karlsruhe, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B28C / ;
U.S. Cl.
CPC ...
366-2 ; 366348 ;
Abstract
In a process for mixing wet molding materials, particularly wet molding sands used for foundry purposes, the dry components of the molding materials are premixed in a container and, following the premixing of the moist components of the molding materials, are added and then homogenized with the dry components by further mixing. To reduce the mixing time, improve the mixing result and prevent contamination of mixer parts above free surface level of the dry components, the moist components are added under an overpressure to the premixed dry components below the surface level of the premixed dry components.