Presses – Concurrent pressing and conveying – Roll type
Reexamination Certificate
2008-03-11
2008-03-11
Nguyen, Jimmy T. (Department: 3725)
Presses
Concurrent pressing and conveying
Roll type
C100S038000, C100S174000, C100S331000, C100S332000
Reexamination Certificate
active
07340999
ABSTRACT:
Calender and process for operating calender depending upon a desired surface quality, in which calender includes a plurality of nips located between end nips formed by replaceable rolls and end rolls. Process includes selectively guiding a web though several nips of calender and at least one end nip of calender, and when the web is selectively guided through the at least one end nip, selectively replacing the replaceable roll with one of a hard and a soft roll to form the at least one end nip with a hard roll and a soft roll or with two soft rolls. The replaceable roll being connectable to a temperature control device operated with a tempering capacity that depends on the type of the replaced roll. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
REFERENCES:
patent: 4332191 (1982-06-01), Kankaanpaa
patent: 4375188 (1983-03-01), Leiviska
patent: 4960046 (1990-10-01), Anstötz et al.
patent: 5947017 (1999-09-01), Hartwich et al.
patent: 6248215 (2001-06-01), Cramer et al.
patent: 3107709 (1982-08-01), None
patent: 20200584 (2002-05-01), None
patent: 0822289 (1998-02-01), None
patent: 0890676 (1999-01-01), None
Hinz Joachim
Koller Thomas
Schneid Josef
Greenblum & Bernstein P.L.C.
Nguyen Jimmy T.
Voith Paper Patent GmbH
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