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:
Nov. 17, 1992
Filed:
Nov. 25, 1991
Applicant:
Inventors:
Ludwig Wilhelm, Engen, DE;
Peter Rossmanith, Rielasingen, DE;
Assignee:
Georg Fischer AG, Schaffhausen, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B03B / ; B07B / ;
U.S. Cl.
CPC ...
209-2 ; 209 10 ; 209 12 ; 209144 ; 241 24 ; 241D / ; 164-5 ;
Abstract
A process for separating bentonite and carbon carrier particles from an air-dust mixture generated from a mechanical used-sand reclamation unit and, more particularly, a process as aforesaid wherein the bentonite and carbon carrier particles are recycled to a foundry sand preparation unit.