Fluid flow rate sensor
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United States of America Patent
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Jan 22, 2008
Grant Date -
Nov 23, 2006
app pub date -
Jul 11, 2006
filing date -
Oct 13, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A valve body defines an inlet, an outlet, a valving cavity disposed between the inlet and outlet and a valving surface between the inlet and the outlet. A valve is moveable to a position away from the valving surface for permitting flow from the inlet through the valving cavity to the outlet. The fluid flow rate sensor includes a probe having a detection module adapted to change condition in response to the presence of the flow of the fluid, a control module that is electrically connected to the probe that monitors the condition of the detection module over time (e.g., a temperature), determines a rate of change of that condition over time, and generates an output that is indicative of the rate of flow of the fluid, and a I/O module connected to the control module and communicating the output of the control module to another device or a user.
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