B - Operations – Transporting – 67 – D
Patent
B - Operations, Transporting
67
D
B67D 7/22 (2010.01) C02F 1/00 (2006.01) B67D 5/22 (2006.01)
Patent
CA 2152018
A device for batch transfer of liquid from one tank to another tank or to a recipient in sewage treatment plants for intermittent biological and/or chemical cleaning of waste water said device partly including a U-tube, comprising two vertical parts, which are submerged in the liquid in the tank, and divided by an upper part so arranged that by the siphoning effect, liquid is allowed to pass through, partly by the air supply source, which can be a fan or a compressor, which through an air valve communicates with the U-tubes upper part and the valve is arranged in such a way that air pressure from the supply source will be fed to the U-tubes upper part and by doing so restricting the liquid transport through the pipe and at another setting point restrict the upper parts connection with the air supply source, and open the connection between the upper part and the atmosphere, and thus allow the liquid to flow unrestricted through the tubes.
Gowling Lafleur Henderson Llp
Klingstrom Thorsten V.
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