Volumetric fluid dispensing apparatus

Details Volumetric fluid dispensing apparatus Volumetric fluid dispensing apparatus

1995-05-15

1997-10-28

Kashnikow, Andres

Dispensing

Automatic control

Material level control

222318, 137563, B67D 508

Patent

active

056809603

ABSTRACT:
A fluid dispensing apparatus includes a fluid reservoir comprising a flexible bag-like enclosure. The fluid reservoir includes a discharge valve connected to a fluid output for dispensing fluid from said fluid reservoir. An electronic controller selectively opens and closes the discharge valve to dispense a predetermined volume of fluid from said fluid reservoir. The fluid reservoir is flexible so that it expands and contracts to maintain the internal pressure of the fluid reservoir constant. In an alternate embodiment, the fluid reservoir has a rigid wall and is provided with an external bladder which expands and contracts to maintain the internal pressure of the fluid reservoir constant. The fluid dispensing apparatus can be configured either as a volumetric filler or as a time pressure filler.

REFERENCES:
patent: 2860785 (1958-11-01), Gardner
patent: 2865541 (1958-12-01), Hicks
patent: 2967004 (1961-01-01), Lipshutz et al.
patent: 5203367 (1993-04-01), Akai et al.

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