Strain gauge pump control switch
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United States of America Patent
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Mar 17, 2015
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N/A
app pub date -
Jul 31, 2013
filing date -
May 22, 2007
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Abstract
A control switch incorporates a solid state transducer, a strain gauge. The transducer responds to a local environmental condition, such as fluid level, or pressure and exhibits a parameter change which can be detected as an electrical output. Control circuits coupled to the transducer can sense the parameter change and switch a source of electrical energy to a load in response thereto.
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