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US 4,880,501 AGranted
Press cover for a press for dewatering web material
AssigneeJ.M. Voith GmbH
InventorChristian Schiel
Life of this patent
Estimating the term…
Abstract
An elastically deformable press cover of a press for dewatering web material, in particular of a dewatering press for paper making machines, or the like. The press cover surrounds a support and is an endless belt. At its outside, which faces toward the web, the press cover has ridges which lie in preferably equidistant diametral planes or run round the cover in the form of a helical line. Between the ridges there remain grooves which are open to the outside. As seen in cross-section, the top lands of the ridges are concave.
Claims15
An elastically deformable press cover for a press for dewatering a web material, the press cover having:
- an outside for facing toward the web material, the outside of the cover having ridges defined on it, the ridges being spaced apart by grooves defined in the cover, and the grooves being defined by and between the ridges and facing the outside of the press cover;
- the ridges having top ends toward the outside of the cover and having top lands at their top ends;
- and each ridge top land having opposite edges and being concavely shaped between the opposite edges thereof.
Dependencies are inferred from the claim text.