Damping roller for a printing press

Details Damping roller for a printing press Damping roller for a printing press

1992-08-07

1994-06-07

Burr, Edgar S.

Printing

Planographic

Dampeners

101148, B41L 2500

Patent

active

053179668

ABSTRACT:
A damping roller for the damping unit in a printing press has a roller body that carries a glass, glass ceramic, or enamel outer material, layer, or coating. Suitable coatings can be produced, for example, by enamelling, plasma spraying, or attaching the outer layer to the body with a sealing compound. In another embodiment, the glass, glass ceramic, or enamel material acts as the self-supporting roller member accommodated solely by the journals. Preferably, the outer surface of the roller is polished. The damping roller of the invention has the ability to dispense an optimum amount of damping medium while eliminating or reducing damping medium additives such as alcohol to less than 6% of the total mixture.

REFERENCES:
patent: 1804139 (1926-01-01), Adsit et al.
patent: 2007588 (1932-09-01), Wescott
patent: 2181136 (1939-11-01), Knox
patent: 2671262 (1950-12-01), Kuniholm
patent: 3467009 (1969-09-01), Ross
patent: 3646652 (1972-03-01), Heiligenthal et al.
patent: 3986452 (1976-10-01), Dahlgren
patent: 3990391 (1976-11-01), Singh
patent: 4009658 (1977-03-01), Heurich
patent: 4925014 (1990-05-01), Haite
patent: 4932319 (1990-06-01), Switall

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