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. 12, 1977
Filed:
Mar. 25, 1976
Applicant:
Inventor:
Josef Tra, Heidenheim, DT;
Assignee:
J. M. Voith GmbH, Heidenheim (Brenz), DT;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B02C / ;
U.S. Cl.
CPC ...
241 28 ; 241 29 ; 241 45 ; 162-4 ; 162-8 ;
Abstract
Disclosure is made of improved apparatus for continuously processing waste papers, contaminated with inks, adhesives, resins, groundwood, foreign objects, paper fasteners and the like, into usable grades of cellulosic fiber pulps. The disclosure is also of a method for the continuous processing of contaminated waste papers into nearly quantitative yields of usable cellulosic fiber pulps.