Printing – Planographic – Dampeners
Patent
1975-03-24
1977-07-12
Burr, Edgar S.
Printing
Planographic
Dampeners
101364, B41F 730
Patent
active
040346706
ABSTRACT:
A spray-type dampening apparatus for lighographic printing presses comprises a resilient surfaced, fluid supply roller that is partially immersed in a reservoir of dampening fluid and a coacting, hard surfaced feed roller having generally longitudinally disposed grooves in the peripheral surface thereof and forming a nip with the supply roller. The supply roller is rotated at a surface speed sufficient to advance and maintain a supply of dampening fluid from the reservoir to the said nip whereas the feed roller is rotated at a high surface speed relative to the supply roller to thereby generate and project a fine mist of the dampening fluid from the nip toward an adjacent transfer roller.
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Burr Edgar S.
Pieprz William
Rockwell International Corporation
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