Liquid developer supply system with pump for discharging fixed a

Details Liquid developer supply system with pump for discharging fixed a Liquid developer supply system with pump for discharging fixed a

1991-11-29

1993-10-26

Kashnikow, Andres

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

222376, 222DIG1, G01F 1102

Patent

active

052558282

ABSTRACT:
A pump-equipped liquid developer supply vessel is composed of a liquid developer supply vessel which holds a liquid developer therein; a cylinder with a bottom portion including a piston hole therein, a liquid developer suction hole with a liquid developer suction valve; a piston device which is slidably disposed within the cylinder, the piston device including a piston with a liquid developer inlet and a liquid developer inlet valve, a piston cover which is provided above the piston to form an inner space therebetween to hold the liquid developer 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 therein a developer discharge conduit which is connected to the inner space of the piston device and from which the liquid developer can be discharged for use.

REFERENCES:
patent: 351538 (1886-11-01), Sims
patent: 597477 (1898-01-01), Wine
patent: 774889 (1904-11-01), Murphy
patent: 963268 (1910-07-01), Becker
patent: 1180221 (1916-04-01), Adams
patent: 1936526 (1933-11-01), Seidel
patent: 2548752 (1951-04-01), Titus
patent: 4795063 (1989-01-01), Sekiguchi et al.

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