MANUAL VALVE, TANK WALL, AND DRAIN DEVICE HAVING THE SAME
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United States of America Patent
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Issued Date -
Jan 28, 2016
app pub date -
Jul 25, 2014
filing date -
Jul 25, 2014
priority date (Note) -
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Abstract
A manual valve includes a knob and a stem projected from the knob. The stem has a pin and a recess. The pin is configured to be projected from the stem radially outward and to be retracted into the recess radially inward. The pin has a end surface configured to latch onto a pin seat when projected. The knob has a plug radially offset from a center axis of the stem.
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