Valve unit and peristaltic pump including the same
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United States of America Patent
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Feb 27, 2018
Issued Date -
N/A
app pub date -
Mar 11, 2015
filing date -
Sep 10, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A vale unit includes a valve frame and two valve plates. The valve frame defines a valve opening. The valve plates are formed with protrusions. Each of the valve plates has a connecting end that is formed with a notch. The connecting ends are connected to each other. The protrusions protrude from peripheries of the notches. Each of the protrusions has a contact end. The contact ends cooperatively define a gap therebetween. The valve plates are co-rotatable about an axis between a closed position, in which the valve plates substantially close the valve opening, and an opening position, in which the valve plates open the valve opening. The gap has a width varying in response to co-rotation of the valve plates between the opening position and the closed position.
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