Paper web buffer system

Details Paper web buffer system Paper web buffer system

1978-06-23

1980-08-19

Jillions, John M.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

226118, 226199, 242182, B65H 2324

Patent

active

042180260

ABSTRACT:
A buffer system for isolating a supply of paper web from a processor operating on the paper web. The buffer system comprises a vacuum chamber and vacuum pump creating a pressure differential across a portion of the paper web forcing the web into the vacuum chamber in the form of a loop having suitable tension. The loop rises and falls within the vacuum chamber to either store or deliver web to the processor in response to the paper supply delivering more or less web than the processor can accommodate. In one embodiment, the vacuum chamber is provided with a movable wall to accommodate paper webs of different widths and a foot extending from the movable wall communicates with orifices to change the pressure differential.

REFERENCES:
patent: 2968982 (1961-01-01), Cousino
patent: 3499614 (1970-03-01), Badum
patent: 3645470 (1972-02-01), Dickinson et al.
patent: 3807612 (1974-04-01), Eggert
patent: 3807854 (1974-04-01), Tanaka et al.
patent: 3844551 (1974-10-01), Morrison
patent: 3882744 (1975-05-01), McCarroll
patent: 3937421 (1976-02-01), Fender et al.
patent: 3943530 (1976-03-01), Mourier
patent: 4040043 (1977-08-01), Stanford
patent: 4050642 (1977-09-01), Katsumata et al.

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