DISPENSER AND METHOD FOR DISPENSING FLOWABLE OR POURABLE MATERIALS
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United States of America Patent
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Issued Date -
Apr 18, 2013
app pub date -
May 6, 2011
filing date -
May 12, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A dispenser delivering flowable or pourable material has a line for transporting the material from a container to an outlet end of the line. The line, filled with material, has its inlet end in the container or connected to the container. A stop valve controls dispensing of the material from the outlet end and a control controls opening and closing of the valve. The line has an elastic section inserted in the valve and the valve is a pinch valve for the stationary compression of the elastic section and therefore for closure of the line. The control controls an opening time of the valve for delivery of a defined quantity of material into a sample vessel, wherein this opening time is exclusively determined by properties of the material and properties of the line filled with material.
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