Method of operating ink unit for printing press

Details Method of operating ink unit for printing press Method of operating ink unit for printing press

1996-06-10

1997-09-02

Burr, Edgar S.

Printing

Processes

1013506, 101363, 101366, B41F 3100, B41F 146

Patent

active

056620420

ABSTRACT:
An ink fountain unit for a printing press having a rotatable cylindrical transfer roll, an ink fountain adjacent the roll and parallel thereto, the fountain being equipped with doctor and containment blades and end seals between the blades, all of the blades and end seals having edges bearing against the roll to define a closed chamber for ink, each of the end seals having relatively elongated, spaced apart first and second angled bearing surfaces confronting the doctor and containment blades and an arcuate bearing surface confronting the roll between the angled surfaces and a recess in a chamber wall of each end seal generally aligned with the arcuate bearing surface top provide a cantilevered edge on the arcuate surface so as to apply in operation less lineal pressure to the roll than to the blades.

REFERENCES:
patent: 4590855 (1986-05-01), Schommer et al.
patent: 4821672 (1989-04-01), Bruno
patent: 5027513 (1991-07-01), Allison, Jr.
patent: 5125341 (1992-06-01), Yaeso
patent: 5150651 (1992-09-01), Flores
patent: 5182992 (1993-02-01), Rogge
EFM Jun. 1994.

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