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:
Sep. 19, 1995
Filed:
May. 03, 1994
Applicant:
Inventors:
Ferdinand Proksa, Leverkusen, DE;
Hans-Michael Sulzbach, Konigswinter, DE;
Ferdinand Althausen, Neunkirchen, DE;
Jurgen Wirth, Koln, DE;
Reiner Raffel, Siegburg, DE;
Assignee:
Maschinenfabrik Hennecke GmbH, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; B01J / ; B28B / ; B02C / ;
U.S. Cl.
CPC ...
422131 ; 422133 ; 422230 ; 422234 ; 425 / ; 4258 / ; 241 97 ; 2411018 ; 2411522 ;
Abstract
In a fine comminution apparatus arranged downstream of a coarse comminution apparatus, polyurethane foam wastes can be comminuted to the desired particle size for recycling as an additive in the production of polyurethane, in a low-dust and energy-saving manner, by carrying out the fine comminution preferably by repeatedly forcing a mixture of the coarsely comminuted material and one of the reaction components through a nozzle or through a plurality of nozzles.