Three-way pneumatic registration apparatus

Details Three-way pneumatic registration apparatus Three-way pneumatic registration apparatus

1975-11-28

1978-01-03

Schacher, Richard A.

Sheet feeding or delivering

Feeding

With means to align sheet

271195, B65H 900

Patent

active

040662543

ABSTRACT:
In a first embodiment, a stop having a plurality of ports is connected to and covers an end of a rectangular sleeve. In a region near the stop, a narrow wall of the sleeve also has a plurality of ports. A nozzle coupled to a pump provides a flow of air into the other end of the sleeve and the air exits through the ports. With this arrangement, a rectangular sheet inserted into said other end of the sleeve is fluidly brought into registration with the narrow wall and stop. After the sheet has been registered, fluid inserted or drawn through holes in a wide wall of the sleeve maintains the sheet in contact with one of the wide walls, thereby further registering the sheet. In a second embodiment, similar to the first, the narrow wall and stop include internal projections against which an inserted sheet is registered. In a third embodiment, similar to the first, a manifold is coupled to the ports and a vacuum pump is coupled to the manifold to accelerate registration. In a fourth embodiment, similar to the third, the pumps are replaced with a reversible pump to register and discharge a sheet.

REFERENCES:
patent: 3405977 (1968-10-01), Albright
patent: 3624807 (1971-11-01), Schwebel
patent: 3834799 (1974-09-01), Blosser
patent: 3918706 (1975-11-01), Craft

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