Mixer/aerator for waste water
OwnerJohny H. Haegemaninventor
Life of this patent
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Abstract
Apparatus designed to mix and/or aerate waste water by floating on the surface of the water, comprising a motor (2) having a shaft (3) oriented downwards and driving a propeller (4), a guide tube (5), a water-deflecting device (6) and at least two floats, an upper float (9) and a lower float (10), mounted apart one above the other and arranged concentrically relative to the axis of the motor (2), which allow the apparatus (1) to be positioned between two limiting levels relative to the surface of the water: a lower level where only the upper float (9) is situated on the surface of the water and in which the apparatus is suitable for use as a mixer and a upper level where only the lower float (10) is operational and in which the apparatus is suitable for use as an aerator.
Claims8
Apparatus for selectively mixing or aerating waste water by floating on the surface of the water, comprising a reversible motor having a shaft oriented downwards and driving a propeller, a guide tube disposed below said propeller, and at least two flotation elements mounted in spaced relation one above the other and arranged concentrically relative to the axis of the motor to form a water deflecting device between said flotation elements in the region of said propeller, means for operating said flotation elements so as to allow the apparatus to be positioned between two limiting levels relative to the surface of the water, namely a lower level where only the upper one of said flotation elements is situated on the surface of the water and in which the apparatus is suitable for use as a mixer and an upper level where only the lower one of said flotation elements is operational and in which the apparatus is suitable for use as an aerator.
Dependencies are inferred from the claim text.