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:
Oct. 12, 1999
Filed:
Jun. 12, 1997
Applicant:
Inventors:
Jouko Hautala, Tampere, FI;
Olli Tuovinen, Tampere, FI;
Assignee:
Valmet Corporation, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C / ;
U.S. Cl.
CPC ...
241 28 ;
Abstract
A method and an arrangement for treatment of reject material separated at screening of fibre pulp prepared by grinding wood. In the method reject material is fed against the surface of a grindstone (3) of a pressure grinder immediately before a normal grinding zone (6). The arrangement comprises a reject feeding equipment (12) placed immediately before the normal grinding zone (6) through which the reject material is fed to be ground again.