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. 18, 2001
Filed:
Oct. 13, 1999
Anders Bergdahl, Sundsbruk, SE;
Kjell Forslund, Sundsbruk, SE;
Lennart Svensson, Sundsvall, SE;
Björn Wikström, Sundsvall, SE;
Valmet Fibertech Aktiebolag, , SE;
Abstract
Screening apparatus is disclosed for separating fiber suspensions comprising a housing having an inlet for the fiber suspension, a stationary tubular screen dividing the interior of the housing into a central chamber for receiving the fiber suspension from the inlet and an outer accept chamber for receiving an accept portion of the fiber suspension which has passed through the stationary tubular screen, a rotor journalled on the housing for rotation within the central chamber coaxially with the stationary tubular screen, the rotor including a rotationally symmetrical element, a reject chamber for receiving a reject portion of the fiber suspension at one end of the stationary tubular screen, and an annular passage for dilution liquid including a stationary annular wall portion juxtaposed with the rotationally symmetrical element of the rotor.