Apparatus for automatically dispensing accurately a predetermine

Details Apparatus for automatically dispensing accurately a predetermine Apparatus for automatically dispensing accurately a predetermine

1988-03-10

1989-07-04

Huppert, Michael S.

Dispensing

Automatic control

By the weight of the material in the supply container

222 63, 222108, 222330, 222276, 141104, 141243, B67D 514

Patent

active

048442984

ABSTRACT:
Apparatus for automatically dispensing accurately a predetermined quantity of a liquid required to be stored at room temperature including a syringe pump, a liquid tank, and a pump displacement mechanism for moving the syringe pump between the liquid tank and a container. The piston of the syringe pump is displaced by a piston displacement mechanism. A weigher measures weights of the tank and liquid in the tank as well as a draining system for draining the liquid of the liquid tank. Liquid is supplied to the liquid tank from a supply system. A control device controls displacement of the syringe pump and the piston of the syringe pump, actuation of the supply system and the drainage system, and reads measurement output signals of the weigher.

REFERENCES:
patent: 2765962 (1956-10-01), Perkins
patent: 3666420 (1972-05-01), Paatzsch
patent: 4199013 (1980-04-01), Reich et al.
patent: 4478094 (1984-10-01), Salomaa et al.
patent: 4554839 (1985-11-01), Hewett et al.
patent: 4728501 (1988-03-01), Atake

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