Apparatus and method for sensing the fluid level in a mixing device
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United States of America Patent
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Nov 26, 2002
Grant Date -
N/A
app pub date -
Dec 13, 1999
filing date -
Dec 13, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A sensor for detecting the level of circulating fluid in a tank comprises a paddle blade disposed at a particular height and oriented generally radially from a rotating shaft in the tank. A sensing device, such as a strain gauge, is attached to the paddle blade to detect when the paddle blade is in at least one of a normal and a displaced position, thereby indicating that fluid is absent or present at a particular level. Additional sensors may be used in the same tank to provide fluid level feedback at more than one height.
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