Suction-type grippers for a sheet transfer drum

Details Suction-type grippers for a sheet transfer drum Suction-type grippers for a sheet transfer drum

1994-05-10

1997-03-18

Burr, Edgar S.

Printing

Rolling contact machines

Rotary

101410, B41F 1324

Patent

active

056112769

ABSTRACT:
Suction-type grippers for a sheet-transfer drum includes a sheet-supporting element having a sheet-supporting surface formed with a plurality of suction-air openings disposed along a region thereof to be covered by at least one sheet edge, at least one flexible planar member disposed adjacent to said sheet-supporting element at a side thereof facing away from the sheet-supporting surface thereof, the flexible planar member having a member for sealing at least some of the suction-air openings.

REFERENCES:
patent: 4688784 (1987-08-01), Wirz
patent: 4723488 (1988-02-01), Inouye et al.
patent: 4735142 (1988-05-01), Haupenthal
patent: 4930414 (1990-06-01), Wirz
patent: 5263415 (1993-11-01), Pollich
Friday, "Transfer Apparatus", Xerox Disclosure Journal, vol. 1, No. 7, Jul./1976, p. 67.
Burnard, "Flow Reduction on Gated Transports" Xerox Disclosure Journal, vol. 9, No. 2, Mar./Apr./84, p. 119.

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