Press apparatus for removing water from a web
AssigneePMT Italia SpA
InventorFabrizio Tonello
Life of this patent
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Abstract
A press apparatus (10) is disclosed for removing water from a web (W). The apparatus includes a rotatable roll (12) which defines a peripheral surface (14). An elongate shoe (16) has a curved surface (18) which cooperates with the peripheral surface (14) of the roll (12) for defining therebetween a nip (N) for the passage therethrough of the web (W). The arrangement is such that when the web (W) extends through the nip (N), water is pressed from the web (W). A blanket (20) is disposed between the curved surface (18) of the shoe (16) and the web (W) for supporting the web (W) during the passage of the web through the nip (N), the blanket (20) enclosing the shoe (16). Moreover, the blanket (20) has a diameter within a range 500 mm to 875 mm.
Claims21
A press apparatus for removing water from a web, said apparatus comprising:
- a rotatable roll defining a peripheral surface;
- an elongate shoe having a curved surface which cooperates with said peripheral surface of said roll for defining therebetween a nip for the passage therethrough of the web, the arrangement being such that when the web extends through said nip, water is pressed from the web;
- a blanket disposed between said curved surface of said shoe and the web for supporting the web during said passage of the web through said nip, said blanket enclosing said shoe;
- and
- said blanket having a diameter within a range 500 mm to 875 mm.
A press apparatus for removing water from a web, said apparatus comprising:
- a rotatable roll defining a peripheral surface;
- an elongate shoe having a curved surface which cooperates with said peripheral surface of said roll for defining therebetween a nip for the passage therethrough of the web, the arrangement being such that when the web extends through said nip, water is pressed from the web;
- said shoe having a machine direction length within a range 40 mm to 130 mm;
- a blanket disposed between said curved surface of said shoe and the web for supporting the web during said passage of the web through said nip, said blanket enclosing said shoe;
- and
- said blanket having a diameter within a range 500 mm to 875 mm.
A method for removing water from a web, said method comprising:
- rotating a rotatable roll which defines a peripheral surface;
- urging an elongate shoe having a curved surface which cooperates with the peripheral surface of the roll for defining therebetween a nip for the passage therethrough of the web, the arrangement being such that when the web extends through the nip, water is pressed from the web;
- and
- supporting the web on a blanket disposed between the curved surface of the shoe and the web during the passage of the web through the nip, the blanket enclosing the shoe, the blanket having a diameter within a range 500 mm to 875 mm.
Dependencies are inferred from the claim text.