Paper stacker

Details Paper stacker Paper stacker

1984-11-28

1988-01-12

Schacher, Richard A.

Sheet feeding or delivering

Delivering

With transfer means between conveyor and receiver

271215, 271217, 271286, B65H 3110

Patent

active

047186577

ABSTRACT:
The invention provides a sheet stacker for receiving paper from a printer, copier and the like. The stacker includes a base, and an elevator mechanism contained in the base. A hopper sits on the base and includes a floor moveable within the hopper and supported by the elevator mechanism. As paper enters the hopper a sensor is used in conjunction with an activator to maintain the floor of the hopper at a level to ensure that each sheet slides essentially horizontally onto the stack to avoid curling of the sheet on the stack. The stacker also includes a paper positioning device above the stacker and operable by a controller to engage selected sheets as they enter the stacker. This engagement deflects the sheets to one side so that these sheets are staggered with respect to the other sheets in the pile for ease of identification in the finished pile.

REFERENCES:
patent: 1928923 (1933-10-01), Andersen
patent: 3647045 (1972-03-01), Wegener
patent: 4017066 (1977-04-01), Lasher
patent: 4318539 (1982-03-01), Lamos
patent: 4396334 (1983-08-01), Byrt

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