Printing press liquid circulating system including an anti-foami

Details Printing press liquid circulating system including an anti-foami Printing press liquid circulating system including an anti-foami

1979-05-18

1981-11-17

Fisher, J. Reed

Printing

Inkers

Fountains

101366, B41F 3102, B41L 2704

Patent

active

043004504

ABSTRACT:
A printing press liquid circulation system including an anti-foaming device, the system being of the type wherein flow of liquid from a fountain pan to a reservoir is induced or suctioned through a return conduit by connecting the return conduit to a suction inlet of an aspirator. In order to reduce or eliminate the tendency of the aspirator to draw or suction air through the return conduit and, thus reduce or eliminate foaming in the system, the suction pressure in the return conduit is controlled to eliminate the suctioning of air through the return conduit.

REFERENCES:
patent: 1640408 (1927-08-01), House
patent: 2755816 (1956-07-01), Collins
patent: 3352317 (1967-11-01), Dahlgren
patent: 3490376 (1970-01-01), Valdespino

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