Dampening system for a printing press

Details Dampening system for a printing press Dampening system for a printing press

1994-09-19

1998-11-24

Fisher, J. Reed

Printing

Planographic

Dampeners

B41F 730, B41F 726

Patent

active

058393641

ABSTRACT:
A dampening assembly (10) for a printing press (12) having a spray bar (16) and source (18) of a liquid (L). The system (10) has a pressure regulator (22) being connected to the source (18) through a first conduit (20), and being connected to the spray bar (16) through a second conduit (24). The system (10) has an accumulator (26) having a chamber (28) being separated into first and second compartments (32 and 34), with the first compartment (32) being closed and being charged with an inert gas (G), and the second compartment (34) being connected to the second conduit (24). The system 10 has a third conduit (38) being connected between the second conduit (24) and the supply (18), and having a flow restriction orifice (40) restricting the flow of liquid (L) between the second conduit (24) and the source (18).

REFERENCES:
patent: 1893685 (1933-01-01), Pirsch
patent: 4050378 (1977-09-01), Smith, Jr.
patent: 4445829 (1984-05-01), Miller
patent: 4570538 (1986-02-01), Webb
patent: 5337791 (1994-08-01), Plager et al.

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