Device for portioning a liquid substance

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

A - Human Necessities

47

L

A47L 13/30 (2006.01)

Patent

CA 2075819

2075819 9111955 PCTABS00006 The object of the invention is a device for portioning a liquid substance (31) from a liquid container (30) along a liquid tube (33). According to the invention, the container (30) is made airtight and to it is connected an air-duct (34) provided with a valve (14) to let air into the container when liquid (31) is to be discharged from the container. Thus, the valve will never come into contact with the liquid to be portioned. To ensure accurate portioning, an air/hydraulic lock (35, 36) is formed in the liquid tube (33) to prevent the entry of air into the container (30) through the liquid tube.

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