Paper making and fiber liberation – Apparatus – Running or indefinite length product forming and/or treating...
Patent
1994-04-28
1995-02-14
Hastings, Karen M.
Paper making and fiber liberation
Apparatus
Running or indefinite length product forming and/or treating...
162217, 162301, 162364, 162374, D21F 148
Patent
active
053892070
ABSTRACT:
Improved apparatus for controlling the dewatering of a web (44, 44') in a Fourdrinier fabric (20, 21) by submerged drainage apparatus in which air does not penetrate through the fiber/aqueous dispersion nor the formed web (44, 44'). The dewatering is accomplished by altering the natural tension of the meniscus of the water to induce enhanced drainage of water from the aqueous dispersion of paper making fibers in the fabric (20, 21) and replacement air for the water draining from the formed web (44, 44') is provided from beneath the lower fabric (20) and, if an upper fabric (21) is employed, from above the upper fabric (21).
REFERENCES:
patent: 2991218 (1961-07-01), Cirrito et al.
patent: 3066068 (1962-11-01), Calehuff
patent: 3489644 (1970-01-01), Rhine
patent: 3573159 (1971-03-01), Sepall
patent: 4306934 (1981-12-01), Seppanen
patent: 4474296 (1984-05-01), Cruse
patent: 4769111 (1988-09-01), Nevalainen et al.
patent: 5011577 (1991-04-01), Hansen et al.
Baumann, "New Top Wire Forming Unit Provides Flexibility", Pulp and Paper, Apr. 1989.
Corbellini Glauco
Rodriguez Peter A.
Hastings Karen M.
Yeager Arthur G.
LandOfFree
Apparatus for controlling the dewatering of a web in a fourdrini does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for controlling the dewatering of a web in a fourdrini, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for controlling the dewatering of a web in a fourdrini will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-284885