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:
Mar. 28, 2000
Filed:
Sep. 30, 1998
Erik Brox, Forshaga, SE;
Valmet-Karlstad AB, Karlstad, SE;
Abstract
A shoe press for paper or board machines comprises a press shoe; a counter roll; the press shoe and the counter roll forming between themselves an extended nip for a paper or cardboard web and a circulated flexible belt; and at least one hydraulic loading cylinder for pressing the press shoe against the counter roll. Hydrostatic pockets are arranged in the side of the press shoe facing the counter roll and hydrostatic compartments are formed between the opposite side of the press shoe and the loading cylinders, the pockets and compartment being adapted to be supplied with hydraulic fluid. At least one pipe for supplying hydraulic fluid to the compartments and/or pockets is releasably attached to one side of the press shoe in the longitudinal direction thereof, and the pipe has through holes in its wall, which holes each communicate with a duct at one end thereof, the ducts being formed in the press shoe. The ducts open at their other ends into working chambers in the loading cylinders and/or into the hydrostatic compartments and/or into the hydrostatic pockets.