PNEUMATIC DRAIN VALVE DRIVING DEVICE
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United States of America Patent
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Issued Date -
Sep 5, 2024
app pub date -
Feb 22, 2024
filing date -
Mar 1, 2023
priority date (Note) -
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status (Latency Note)
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Abstract
A pneumatic drain valve driving device includes a cylinder, including a cylinder body and an air chamber. The air chamber includes an air chamber communication port in air communication with an outside of the cylinder body; and an air chamber exhaust port configured to be connected to a pneumatic drain valve. The cylinder also includes a liquid chamber, including a drain hole configured to receive a slide valve. The cylinder also includes a piston disposed in the cylinder body. The device also includes a pilot valve, connected to the liquid chamber through a waterway and including a pilot valve control port. The device also includes a linkage trigger mechanism disposed between the pilot valve control port and the slide valve and configured to control an opening and a closing of the pilot valve control port and the slide valve.
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