Pneumatic extension bottom stacking

Details Pneumatic extension bottom stacking Pneumatic extension bottom stacking

1983-04-29

1984-10-23

Schacher, Richard A.

Sheet feeding or delivering

Delivering

To receiver for pack of sheets

271 31, 271147, 271196, B65H 3108

Patent

active

044784040

ABSTRACT:
Apparatus for inserting sheets at the bottom of a stack of sheets including a levitation pocket and a positive air pressure source to provide an air cushion between the stack tray and the bottom sheet in the stack. Drive belts feed sheets under the stack in cooperation with a vacuum source that deflects the sheets against the belts and into a groove until the sheets reach the positive pressure source where they are pushed upward against the bottom of the stack.

REFERENCES:
patent: 3396966 (1968-08-01), Solheim
patent: 3947018 (1976-03-01), Stange
patent: 3971554 (1976-07-01), Stange
patent: 4162067 (1979-07-01), Horak et al.
patent: 4189140 (1980-02-01), Swanson
patent: 4384782 (1983-05-01), Aquaviva
patent: 4413901 (1983-11-01), Kollar

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