Differential pressure apparatus for detecting accumulation of particulates in a filter
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United States of America Patent
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Feb 17, 1998
Grant Date -
N/A
app pub date -
Sep 27, 1995
filing date -
Sep 27, 1995
priority date (Note) -
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Abstract
An apparatus and a method are provided for detecting accumulation of particulates in a fluid stream. A differential pressure switch is incorporated in the apparatus for detecting changes in pressure in the fluid stream passing through a strainer having a filter wherein the particulates accumulate at the filter. A body is insertable into a wall of the strainer wherein the body is in communication with the fluid stream. A pressure responsive device is responsive to changes in pressure in the fluid stream due to accumulation of the particulates. A signal producing device is activated to produce a signal upon detection of a predetermined pressure differential in the fluid.
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