Printing – Planographic – Dampeners
Patent
1978-11-17
1980-12-30
Fisher, J. Reed
Printing
Planographic
Dampeners
101366, 2394345, B41F 730, B41L 2506
Patent
active
042416566
ABSTRACT:
A self-cleaning nozzle for lithographic printing dampeners includes a central liquid duct and an air expansion chamber surrounding the liquid duct and defined by a cylindrical wall closed at an entrance end by a baffle having circumferential slits therethrough and at an exit end by a planar end wall spaced from the termination of the liquid duct and forming a mixing corridor therebetween. The end wall is positioned perpendicular to the liquid duct and to the direction of air traveling through the expansion chamber, thereby increasing turbulence in the air to more effectively break up the liquid stream into fine droplets. A slot orifice is formed in the end wall and is defined by a peripheral surface which forms an acute angle with an inner surface of the end wall and an obtuse angle with the outer surface thereof.
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Fisher J. Reed
Smith R. P. M. Corporation
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