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. 28, 1989
Filed:
Oct. 27, 1987
Applicant:
Inventors:
Hans-Peter Sattler, Bad Homburg, DE;
Bernd Nichtweiss, Frankfurt am Main, DE;
Assignee:
Metallgesellschaft AG, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B03C / ;
U.S. Cl.
CPC ...
209 38 ; 209214 ; 209219 ; 209229 ; 209231 ;
Abstract
A process for separating special steel components from lump shredder scrap includes first removing the ferromagnetic content from the shredder scrap and thereafter dividing the shredder scrap into a normal size fraction and an undersize fraction. The undersize fraction is then treated by separating the special steel content from the undersize fraction by a magnetic drum having a field strength above 0.2 tesla.