Method of visually indicating the ability of a filter element to remove particulates
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United States of America Patent
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Jun 16, 1998
Issued Date -
N/A
app pub date -
Aug 16, 1996
filing date -
Jan 13, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of visually indicating the number of chemicals and particulates processed by a filter element through which a fluid stream has flowed includes providing a volume meter to indicate when a volume of fluid has passed therethrough to indicate the ability of the filter element to reduce chemicals in the fluid stream, providing a flow rate meter to remove particulates, and positioning the volume meter upstream of the flow rate meter so that the volume meter delivers fluid to the flow rate meter which provides a visual indication as to whether the filter element is losing chemical reduction capacity or is clogged.
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