Patent ID: 7752965
Filing Date: 2010-07-13
Classification: B41F

Abstract:
1. An apparatus for feeding carefully controlled amounts of ink to the various zones of a printing press, said printing press being able to accommodate plural zones of printed material, said apparatus comprising: plural oscillating intermittently driven ink pumps, each ink pump having: a corresponding yoke coupled to an inner piston and an outer piston of said ink pump; a corresponding oscillating drive shaft including a means for preventing ink flow backup, coupled to said yoke; an eccentric housing enclosing a portion of said drive shaft; a corresponding pivot shaft adapted to drive one of said drive shafts with intermittent motion, said pivot shaft partially enclosed within said eccentric housing and positioned eccentrically with respect to said drive shaft; a link arm for each pivot shaft, said link arm having two pockets therein, a first pocket for engaging said pivot shaft and for driving said pivot shaft in back and forth swinging movements, with consequent one-way rotational movement of said drive shaft; a means for driving said link arms by a motor operatively coupled to a second pocket of said link arm; and an ink adjustment, adjustable by movement of a fulcrum between stroking and non-stroking positions of said pivot shafts, thereby varying the amount of ink delivered by each pump.