发明授权
US5564828A Method and device for controlled motion of water in water basins 失效
水池控制运动的方法和装置

Method and device for controlled motion of water in water basins
摘要:
Device for aerating and/or mixing water in a basin, using a means to impart a rotational motion to the water and having guide means (57) which convert the rotational motion into a combined horizontal and vertical motion of the water. Said guide means can be screw-shaped or plate-shaped elements of suitable shape and dimensions.
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