Apparatus for varying the flow area of a conduit
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United States of America Patent
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Sep 19, 2000
Grant Date -
N/A
app pub date -
Feb 13, 1998
filing date -
Feb 14, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
An apparatus (10) for varying the flow area of a conduit (12). The apparatus comprises a flap (14) mounted in said conduit (12) which is off-center pivotally mounted to pivot in response to flow of fluid (F) through said conduit (12). The apparatus (10) also includes biasing means associated with the flap to rotationally urge the flap against the action of the flow (F).
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