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. 11, 1989
Filed:
Dec. 07, 1987
Applicant:
Inventor:
Paul-Wilhelm Sepke, Ravensburg-Weissenau, DE;
Assignee:
Sulzer-Escher Wyss GmbH, Ravensburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C / ;
U.S. Cl.
CPC ...
241 881 ; 241 891 ; 241 894 ; 241146 ; 241163 ; 2412612 ; 241297 ;
Abstract
The refiner for processing a fiber stock suspension for paper fabrication comprises at least one substantially planar grinding disc equipped with a conventional set of grinding tools. This substantially planar grinding disc coacts with a perforated plate. The perforations or holes of the perforated plate are provided at a side of the perforations or holes which confronts the grinding disc with grinding edges suitable for achieving a desired refinement processing or treatment of the fiber stock suspension. These perforations or holes experience a force flow of the fiber stock suspension through such perforations or holes.