Sealless modular positive displacement dispenser

Details Sealless modular positive displacement dispenser Sealless modular positive displacement dispenser

1988-04-04

1989-08-22

Kashnikow, Andres

Dispensing

With discharge assistant

With discharge volume varying means

222559, G01F 1106, G01F 1130

Patent

active

048587893

ABSTRACT:
Modular positive displacement apparatus for dispensing precise quantities of a fluid product including a dispensing unit and an actuator unit. A housing of the dispensing unit defines a reservoir which contains the product under pressure. Within the housing is a ball-type closure mechanism. A deformable diaphragm isolates the reservoir from the mechanism which actuates the valve to prevent undesirable entry of the product. The diaphragm may be of a number of shapes, depending upon the length of the stroke desired for the ball mechanism. The dispensing unit is readily removable from the actuator unit and can be readily replaced with another dispensing unit. Different nozzle sizes can also be accommodated. The extent of the closure opening is adjustable in discrete increments.

REFERENCES:
patent: 2111168 (1938-03-01), Chansor
patent: 3022955 (1962-02-01), Riddell
patent: 3327900 (1967-06-01), Goda
patent: 3355112 (1967-11-01), Shaffer et al.
patent: 3463363 (1969-08-01), Zelna
patent: 4347806 (1982-09-01), Argazzi
patent: 4353325 (1982-10-01), Argazzi
patent: 4456152 (1984-06-01), Young et al.
patent: 4756639 (1988-07-01), Hoshino
"Operating Instructions--725 D Diaphragm Valve", 16 pages copyrighted 1983 by Electron Fusion Devices, Inc.

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