Device for portioning a liquid substance

Details Device for portioning a liquid substance Device for portioning a liquid substance

1995-02-16

1995-11-28

Huson, Gregory L.

Dispensing

With fluid trap seal for inlets or outlets

222214, 2224815, B67D 108

Patent

active

054699916

ABSTRACT:
A portioning device for a liquid substance. An airtight container for receiving, holding and discharging a liquid substance is provided with a pair of apertures. An air duct for introducing air into the container is connected to one of the apertures. An air valve is provided in the air duct. A tube for discharging the liquid substance from the container is connected to the other aperture. The tube is formed into at least two loops to form an air/hydraulic lock for preventing air from flowing through the tube into the container. When air is introduced into the container through the air duct by means of the air valve, a corresponding amount of liquid is accurately portioned from the container through the tube.

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patent: 4983060 (1991-01-01), Steinbach

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