Liquid dispensing apparatus

Details Liquid dispensing apparatus Liquid dispensing apparatus

1992-04-30

1993-04-06

Kashnikow, Andres

Dispensing

Automatic control

Constant weight, volume or pressure control by output

222638, 425146, B67D 508

Patent

active

051996073

ABSTRACT:
A liquid dispensing apparatus comprises a syringe containing liquid to be dispensed and an air supply for supplying compressed air to the syringe. The syringe is connected to the compressed air supply via a discharging solenoid valve by means of a pipe line which is provided with an accumulator so as to prevent disturbance of stand-up of the pressure in the syringe to thereby effect a highly accurate quantitative discharge of liquid from the syringe independent of whether a quantity of liquid remaining in the syringe is much or less. The apparatus further comprises an air suction connected to the discharge solenoid valve by means of an additional pipe line provided with an accumulator to prevent liquid from dropping out of the syringe after the end of discharge of liquid.

REFERENCES:
patent: 2710115 (1955-06-01), Chandler
patent: 3708088 (1973-01-01), Lesher
patent: 4810659 (1989-03-01), Higo et al.
patent: 4989756 (1991-02-01), Kagamihara et al.

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