Printing – Planographic – Dampeners
Patent
1975-04-07
1977-03-08
Eickholt, E. H.
Printing
Planographic
Dampeners
118DIG15, 118259, 118300, B41L 2300
Patent
active
040106861
ABSTRACT:
A dampening device supplying water or other ink repellent liquid to the printing plate of a lithographic offset rotary printing press, such device comprising a rotary cylinder, the wall of which comprises an inner coarse mesh element supporting an outer fine mesh element that picks up water from a trough into which it dips and from which the water is projected as a spray by means of air impinging on the interior surface of the cylinder at a delivery station from a series of nozzles or a tube having an axial slot, the fine mesh element having a mesh size that will ensure that each aperture is spanned by the liquid, and the coarse mesh element having apertures of a size such that they are not so spanned, and the space between the cylinder and the printing plate or transfer cylinder of the printing press being unobstructed in the circumferential direction.
REFERENCES:
patent: 845586 (1907-02-01), Sheehan
patent: 1438408 (1922-12-01), Strawn
patent: 2464040 (1949-03-01), Huebner
patent: 2622520 (1952-12-01), Hauser et al.
patent: 2689523 (1954-09-01), Koch
patent: 3143065 (1964-08-01), Warczak
patent: 3237277 (1966-03-01), Gallino
patent: 3329086 (1967-07-01), Pullen
patent: 3516354 (1970-06-01), Heimlicher
patent: 3890898 (1975-06-01), Fischer
Eickholt E. H.
Timsons Limited
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