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:
Jan. 20, 2004
Filed:
Sep. 10, 2001
Kari Holopainen, Muurame, FI;
Pekka Kivioja, Muurame, FI;
Jorma Snellman, Jyväskylä, FI;
Aki Mikkola, Jyväskylä, FI;
Metso Paper, Inc., Helsinki, FI;
Abstract
The invention relates to a slide shoe assembly for a roll ( ) in a paper/board machine or a finishing machine, said roll ( ) comprising a stationary axle ( ), around which is rotatably mounted a cylindrical roll shell ( ), a clearance ( ) formed between the axle ( ) and an inner surface ( ) oF the roll shell ( ) being fitted with loading elements ( ) operated by a pressurized hydraulic fluid and provided with slide shoes ( ) which are loadable against the inner surface ( ) of the roll shell ( ) for controlling the distribution of a nip pressure in a nip (N) established with a counter roll ( ). According to the invention, the loading element is equipped with means capable of eliminating or compensating for a nip-load induced deflection of the roll shell and/or a deflection of the slide shoe caused by the pressure of a hydraulic medium, thereby eliminating the harmful effects caused by said deflections on an oil film between the loading shoe and a cylindrical surface supported thereby.