Paper making and fiber liberation – Apparatus – Running or indefinite length product forming and/or treating...
Patent
1996-08-01
1998-06-16
Hastings, Karen M.
Paper making and fiber liberation
Apparatus
Running or indefinite length product forming and/or treating...
1623591, 1623602, 1623603, D21F 304
Patent
active
057664226
ABSTRACT:
The press section of a papermaking machine has two conventional presses followed by two or three presses including one heated Extended Nip press thereby allowing control of the two-sidedness of the web by balancing the temperature and pressure of the Extended Nip Press with the pressure and temperature of the additional presses to form a one-sided sheet. The use of smooth high temperature press felts can aid in the reduction of two-sidedness of the formed web. The dryer section may alternatively add a fifth press utilizing the first dryer roll as the backing roll, two Extended Nip presses, a heated Extended Nip press followed by a heated conventional press, or a heated Extended Nip press in the third pressing position followed by a conventional heated press utilizing the first dryer as the backing roll.
REFERENCES:
patent: 3198695 (1965-08-01), Justus
patent: 3861997 (1975-01-01), Ely
patent: 4075056 (1978-02-01), Ely et al.
patent: 4086131 (1978-04-01), Rempel et al.
patent: 4197158 (1980-04-01), Johnson
patent: 4257844 (1981-03-01), Schmitt et al.
patent: 4483745 (1984-11-01), Wicks et al.
patent: 4556451 (1985-12-01), Ely
patent: 4561939 (1985-12-01), Justus
patent: 4704192 (1987-11-01), Cronin
patent: 4973384 (1990-11-01), Crouse et al.
patent: 4976820 (1990-12-01), Laapotti
patent: 5047122 (1991-09-01), Crouse et al.
patent: 5240563 (1993-08-01), Karvinen et al.
patent: 5256257 (1993-10-01), Schiel
patent: 5269885 (1993-12-01), Tavi
patent: 5308450 (1994-05-01), Braun et al.
patent: 5368697 (1994-11-01), Steiner et al.
patent: 5439559 (1995-08-01), Crouse
patent: 5500092 (1996-03-01), Schiel
patent: 5593547 (1997-01-01), Pisinger
Archer David J.
Beloit Technologies Inc.
Campbell Raymond W.
Hastings Karen M.
Veneman Dirk J.
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