Pinch valve systems and methods
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United States of America Patent
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Oct 31, 2017
Issued Date -
N/A
app pub date -
Dec 4, 2015
filing date -
Dec 4, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed are embodiments of a pinch valve assembly that can include a controller, an actuator assembly, the actuator assembly including a stepper motor, a leadscrew actuated by the stepper motor such that the leadscrew travels in a plurality of incremental linear steps, a piston coupled with the leadscrew such that relative movement of the leadscrew is transferred to the piston, a valve body, where the piston travels within a bore defined by the valve body, a slotted aperture formed in the valve body to retain at least a portion of tubing, and a pin where the piston and the pin are configured to pinch tubing therebetween such that flow within the tubing can be metered.
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