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:
Nov. 06, 2012
Filed:
Oct. 23, 2008
Jonas Orgård, Stöde, SE;
Jörgen Lundberg, Sundsvall, SE;
Jonas Orgård, Stöde, SE;
Jörgen Lundberg, Sundsvall, SE;
Metso Paper, Inc., , FI;
Abstract
Washing apparatus as well as methods for washing and dewatering a cellulose pulp are disclosed comprising a rotary drum with outer compartments for pulp washing, and a stationary casing surrounding the drum to define an annular space between the casing and the drum which is divided into zones by longitudinal seals. The function of the seals is optimized by a force measurement device for measuring forces acting on the longitudinal seal for measuring a biasing force of a spring package in the measurement device and for measurement of a force acting on a load transmission shaft of the device as well as an extractor for extracting a force acting against the seal in a direction away from the drum.