Automatic control for liquid flow

Details Automatic control for liquid flow Automatic control for liquid flow

1975-11-06

1977-04-19

Tollberg, Stanley H.

Dispensing

Automatic control

Constant weight, volume or pressure control by output

B67D 508

Patent

active

040183629

ABSTRACT:
Automatic regulation system of a flow of liquid, which system comprises an electronic liquid flow control circuit connected to a liquid flow regulation device which it actuates, the said electronic circuit being characterized in that it comprises a drop counting circuit connected to a comparator circuit which comprises a bistable circuit which is itself connected on the one hand to alarm circuits and on the other hand to a monostable circuit, the magnitude of the pulse of which is compared with the magnitude of the pulse of the bistable circuit by means of a comparator circuit to which the bistable and monostable circuits are connected. Said system is used for automatic regulation of the flow of a perfusion liquid.

REFERENCES:
patent: 2604249 (1952-07-01), Gorham
patent: 3209795 (1965-10-01), Page
patent: 3252623 (1966-05-01), Corbin et al.
patent: 3604419 (1971-09-01), Diskin et al.
patent: 3648694 (1972-03-01), Mogos et al.
patent: 3655095 (1972-04-01), Kienitz
patent: 3887110 (1975-06-01), Porter

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