Rotary meter flexible edge impeller assembly
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United States of America Patent
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Dec 27, 2011
Grant Date -
Dec 17, 2009
app pub date -
Jun 16, 2008
filing date -
Jun 16, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An assembly for use in a rotary positive displacement fluid meter having an inner body wall surface that includes a first impeller having an outer surface located within the rotary positive displacement fluid meter and adapted to be directly driven by a fluid flow. The assembly also includes a flexible edge member situated at a distal end of the impeller such that there is a clearance between the flexible edge member and the inner body wall of the rotary positive displacement fluid meter. The impeller defines a longitudinal axis and the flexible edge member has a length along the longitudinal axis and a width in a direction that is orthogonal to the longitudinal axis.
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