Dispensing – With discharge assistant – With movable nozzle interconnected therewith
Patent
1993-06-25
1994-06-21
Kashnikow, Andres
Dispensing
With discharge assistant
With movable nozzle interconnected therewith
222376, 222385, 222DIG1, G01F 1102
Patent
active
053221982
ABSTRACT:
A liquid supply system with a pump for discharging fixed amounts of liquid composed of a liquid supply vessel which holds a liquid therein; a cylinder device composed of a cylinder cover and a cylinder with a bottom portion having a piston hole, a first liquid suction hole with a liquid suction valve and a second liquid suction hole; a piston device which is slidably disposed within the cylinder, including a piston with a liquid suction inlet and a liquid inlet valve, and a valve-pressing member, a piston cover provided above the piston to form an inner space therebetween to hold the liquid therein, a piston shaft which, in a sealed state, passes through the piston hole formed in the bottom portion of the cylinder, and is integrally connected with the piston in such a manner as to slidably move the piston device along the inner side of the cylinder when pressed upward or downward, the piston shaft including herein a liquid discharge conduit which is connected to the inner space of the piston device and from which the liquid can be discharged for use, and an air displacement port; a spring member; and a cradle on which a seal-packing member is provided so as to tightly close the second liquid developer suction hole when the piston device is at the lowest position.
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Bombers Kenneth
Kashnikow Andres
Ricoh & Company, Ltd.
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