Pressing apparatus having chamber end sealing
AssigneeVoith Sulzer Papiertechnik Patent GmbH
InventorDavid A. Beck
Life of this patent
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Abstract
An apparatus for processing a continuous web includes a plurality of rollers arranged for cooperative rotation. Each of the plurality of rollers have a first circular end surface, a second circular end surface and a cylindrical middle surface. The plurality of rollers define a corresponding plurality of nips. First and second sealing panels are provided for engaging the first and second circular ends of each of the plurality of rollers. The first and second sealing panels and the plurality of rollers define a chamber. The first and second sealing panels are structured and adapted to conform generally to the shape of the first and second circular end surfaces, respectively, of the plurality of rollers. End panel sealing of the chamber is provided by mechanical sealing, fluid sealing, or a combination thereof.
Claims23
An apparatus for processing a continuous web, comprising:
- a plurality of rollers arranged for cooperative rotation, each of said plurality of rollers having a first circular end surface, a second circular end surface and a cylindrical middle surface, said plurality of rollers defining a corresponding plurality of nips;
- and
- first and second sealing panels for engaging said first and second circular ends of each of said plurality of rollers, said first and second sealing panels and said plurality of rollers defining a chamber, said first and second sealing panels being structured and adapted to conform generally to the shape of said first and second circular end surfaces, respectively, of said plurality of rollers.
An apparatus for processing a continuous web, comprising:
- a plurality of rollers arranged for cooperative rotation, each of said plurality of rollers having a first circular end surface, a second circular end surface and a cylindrical middle surface, said plurality of rollers defining a corresponding plurality of nips;
- a first sealing panel and a second sealing panel for engaging said first and second circular ends of each of said plurality of rollers, the first and second sealing panels and said plurality of rollers defining a chamber;
- and
- a fluid seal formed between at least one of said first circular end of each of said plurality of rollers and said first sealing panel, and said second circular end of each of said plurality of rollers and said second sealing panel.
An apparatus for processing a continuous web, comprising:
- a plurality of rollers arranged for cooperative rotation, each of said plurality of rollers having a first circular end surface, a second circular end surface and a cylindrical middle surface, said plurality of rollers defining a corresponding plurality of nips;
- first and second sealing panels for engaging said first and second circular ends of each of said plurality of rollers, said first and second sealing panels and said plurality of rollers defining a chamber, and at least one of said first and second sealing panels including an end cavity defining an inner perimetrical surface extending outwardly from an inner end surface;
- and
- at least one unitary seal including a base, a first side wall and a second side wall, and having a substantially U-shaped cross-section,
- said base of said at least one unitary seal contacting said inner perimetrical surface of said cavity said base defining a closed portion of said substantially U-shaped cross-section,
- said first side wall of said at least one unitary seal contacting said inner end surface of said cavity, and
- said second side wall of said at least one unitary seal contacting at least a portion of one of said first circular end surface of each of said plurality of rollers and said second circular end surface of each of said plurality of rollers.
Dependencies are inferred from the claim text.