Fountain solution supply system

Details Fountain solution supply system Fountain solution supply system

1996-08-22

1998-02-03

Fisher, J. Reed

Printing

Planographic

Dampeners

B41F 726, B41F 732

Patent

active

057132828

ABSTRACT:
A system for supplying dampening fluid to a lithographic press dampening system. A metering roller pair is arranged to form a metering nip such that dampening fluid cannot drain away in a circumferential direction when the rollers stop moving. The metering nip constitutes a reservoir capable of being replenished with dampening fluid so the metering rollers can deliver dampening fluid in a manner that prevents contamination. The system includes a pair of metering rollers having a nip at their junction and a sensor for controlling the supply fountain solution available for delivery to the metering nip.

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patent: 3168037 (1965-02-01), Dahlgren
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patent: 4388864 (1983-06-01), Warer
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patent: 4469024 (1984-09-01), Schwartz et al.
patent: 4474933 (1984-10-01), MacPhee et al.
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patent: 4724764 (1988-02-01), MacPhee et al.
patent: 4777877 (1988-10-01), Lemaster
patent: 4841855 (1989-06-01), Marcum
patent: 4981077 (1991-01-01), Alvarez
Reprint of speech of John MacPhee "The Handling and Care of Fountain Solution," given at the GATF/R&E Counsel Lithographic Dampening Conference, Feb. 18, 1976.
Graphic Arts Monthly, Dec. 1979, "Ink Foundation Levels . . . ", pp. 95-96.
Reprint from Graphics Arts Monthly, Sep.-Nov. 1984 "Recent Trends and Developments in Lithographic Dampening".
European Patent Office Communication including European Search Report; Annex to the European Search Report and Abstract.

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