Device for controlling suction air or vacuum and method of actua

Details Device for controlling suction air or vacuum and method of actua Device for controlling suction air or vacuum and method of actua

1998-05-04

1999-11-23

Burr, Edgar

Printing

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Plate mountings

101232, B41F 2500

Patent

active

059880651

ABSTRACT:
A device for controlling vacuum applied to suction openings formed in a cylinder, the suction openings being connectable to a vacuum source via valves arranged in rows and assigned to the suction openings, includes a rotatable adjusting shaft carrying adjusting elements assigned to the valves, the adjusting elements serving to actuate the valves in a defined sequence when the adjusting shaft is rotated, the valves having adjusting bodies therein movable by the adjusting elements out of a first switching position of the adjusting bodies into a second switching position thereof, the vacuum applied to the suction openings being of different magnitudes in the first and the second switching positions; and a method for incrementally actuating the vacuum-controlling device.

REFERENCES:
patent: 4145040 (1979-03-01), Huber
patent: 4202542 (1980-05-01), Lammers et al.

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