Printing – Planographic – Dampeners
Patent
1987-12-18
1989-03-14
Crowder, Clifford D.
Printing
Planographic
Dampeners
101366, 101451, 118 63, 239295, B41F 730, B41L 256
Patent
active
048116610
ABSTRACT:
A novel dampening unit for an offset press is proposed, comprising a nozzle (20) with a discharging mouth (21) in the form of a slit directed substantially at a tangent to an outer surface of the plate (6a) and extending in the axial direction of the plate cylinder (6), which discharging mouth (21) is disposed near the plate surface. The interior of the nozzle (21) is divided into upper and lower chambers (20a, 20b) from the innermost area thereof to the discharging mouth (21) by a partition (22) extending in the direction of an air stream over the whole length of the nozzle (20). A device for generating an air stream, such as a fan (23) is disposed within the upper chamber (20a) and a device for generating a mist such as an ultrasonic generator (27) is disposed within the lower chamber (20b). According to this structure, the mist sucked out from the lower chamber (20b) can be stably and effectively held on the plate surface while sandwiched between the plate surface and an air film formed by the air stream ejected from the upper chamber (20a).
REFERENCES:
patent: 2622520 (1952-12-01), Hauser et al.
patent: 2689523 (1954-09-01), Koch
patent: 2753796 (1956-07-01), Wood et al.
Crowder Clifford D.
Meller Michael N.
LandOfFree
Dampening method and apparatus using an air nozzle and mist gene does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dampening method and apparatus using an air nozzle and mist gene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dampening method and apparatus using an air nozzle and mist gene will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-887889