DIFFERENTIAL PRESSURE SENSOR FOR FILTER MONITORING

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United States of America Patent

APP PUB NO 20080148807A1
SERIAL NO

11923427

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present inventors devised, among other things, exemplary differential pressure sensors suitable for use in a wide-variety filter-monitoring applications. One exemplary sensor, which operates in any physical orientation and consist of snap-together components that require no post-assembly adjustment, includes a diaphragm assembly, a magnet, and a magnetic sensor. The diaphragm moves in response to differential pressures exceeding a predetermined threshold difference, and the magnet which is physically coupled to the diaphragm assembly moves relative to a magnetic sensor. The magnetic sensor senses movement of the magnet and produces a signal that can be correlated by a computer or other circuitry to determine whether a filter is overly clogged and thus requires replacement.

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Patent Owner(s)

Patent OwnerAddress
ENGINEERED PRODUCTS COMPANY2940 AIRPORT BOULEVARD WATERLOO IA 50703

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Berry, Charles H Cedar Falls, IA 3 19
Lockert, Michael J Cedar Falls, IA 5 12

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