Color-gradient printing system

Details Color-gradient printing system Color-gradient printing system

2011-08-23

2011-08-23

Nguyen, Judy (Department: 2854)

Printing

Multicolor

Inkers

C101S210000, C101SDIG034, C101S364000

Reexamination Certificate

active

08001890

ABSTRACT:
An inker for applying ink to a transfer roll of a printing machine has an inking chamber extending longitudinally along the transfer roll and having an outlet also extending longitudinally along the transfer roll and open against the transfer roll and a first generally cylindrical mixing chamber centered on an axis, spaced transversely from and extending longitudinally along the transfer roll. A rotatable shaft extending along the axis in the mixing chamber carries a partition subdividing the mixing chamber into two axially adjacent and axially spaced mixing compartments open radially into the inking chamber. At least two inlet conduits open onto each of the compartments, and a pump feeds respective inks to the inlet conduits and therethrough into the mixing compartments.

REFERENCES:
patent: 397091 (1889-01-01), Mortimer
patent: 2154544 (1939-04-01), Auburn
patent: 2655752 (1953-10-01), Smejda
patent: 2887044 (1959-05-01), Smejda
patent: 5161462 (1992-11-01), Okamura et al.
patent: 5189956 (1993-03-01), Reder et al.
patent: 5979319 (1999-11-01), Hamaoka et al.

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