Metering of liquid substances

Details Metering of liquid substances Metering of liquid substances

1993-08-30

1996-02-13

Wieder, Kenneth A.

Measuring and testing

Volume or rate of flow

By counting drops, bubbles, or particles

222420, G01F 1300, B65D 4718

Patent

active

054904285

ABSTRACT:
The process relates to the metering of liquid substances wherein the liquid substance, with separation of drops, is conducted through one or several discharge orifices, and the quantity of liquid is measured by way of the number of thus-produced drops. Liquid drops of varying sizes render exact metering impossible since no conclusion can be drawn to the exact quantity of liquid. According to the invention, drops of homogeneous density and constant size are produced by regulating the size of the drops by means of an electrical field generated in the zone of the discharge orifices.

REFERENCES:
patent: 2600129 (1952-06-01), Richards
patent: 3476291 (1969-11-01), Glaser
patent: 3579245 (1971-05-01), Berry
patent: 3934192 (1976-01-01), de Latour
Chemische Technologie, vol. 7, Carl Hanswer Verlag Munchen, pp. 82-95 and 131-132 (1975).

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