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. 26, 1991
Filed:
Aug. 13, 1990
Applicant:
Inventors:
Evert Heeren, Weener, DE;
Hans Gotthelf, Schwerte, DE;
Assignee:
Hoesch Werke AG, Dortmund, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B02C / ;
U.S. Cl.
CPC ...
241 19 ; 241 24 ; 241 23 ; 241 27 ; 241 29 ; 241D / ;
Abstract
Refuse scrap from incinerated refuse or nonincinerated refuse is dried and precleaned to a metal content in excess of 70% and is then comminuted and abraded in a hammer shredder with the comminuted material being subjected to air separation and magnetic separation to yield a metal product containing at least 90% metal and with a density of at least 1 ton per m.sup.3 for direct use as any other iron scrap in a steel-making plant.