Measuring and testing – Liquid level or depth gauge – Float
Patent
1988-11-17
1989-10-31
Cuchlinski, Jr., William A.
Measuring and testing
Liquid level or depth gauge
Float
73314, 733225, 73305, 210 86, 210121, 210128, 210608, 210744, G01F 2330, G01F 2376
Patent
active
048768880
ABSTRACT:
An apparatus is disclosed for determining the thickness of a layer of aerated sludge floating on a layer of heavier liquid in a tank used in the treatment of sewage. The apparatus comprises a frame which can be positioned to extend vertically into the tank, an indicator supported by and movable vertically with respect to the frame, the indicator being positionable at the highest level of sludge in the tank, a horizontally-extending lower base attached to the frame at or near the bottom thereof, a horizontally-extending upper base attached to the frame at or near the top thereof, and a line carrying a float, the line being movably secured at the upper and lower base. The float is movable between the upper and lower base, is floatable on the liquid, and includes a horizontally extending portion presenting an upwardly directed, generally planar surface. This surface will be substantially parallel to the interface of the sludge and liquid, and if the float is located below the sludge layer, the flat surface will cause the upward rise of the float to be impeded when it hits the sludge layer.
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Grecu George M.
Ricketts John
Cuchlinski Jr. William A.
Gutierrez Diego F. F.
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