CRYOGENIC FLUID SHUT-OFF VALVE
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United States of America Patent
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Issued Date -
May 2, 2024
app pub date -
Nov 17, 2021
filing date -
Mar 23, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
Shut-off valves for cryogenic fluids are disclosed herein. An example valve includes a valve body defining a flow path and a valve seat, a bonnet coupled to the valve body and defining a bonnet chamber, a plug configured to slide between a closed position, and a stem coupled to the plug. The stem is configured to slide to cause the plug to slide. The valve includes a spindle that includes external threads. The spindle is configured to move along a longitudinal axis of the bonnet as the spindle is rotated about the longitudinal axis via the external threads to cause the stem to slide linearly along the longitudinal axis. The valve includes a pivot ball positioned between and operatively coupled to the stem and the spindle. The pivot ball is configured to translate linear and rotational movement of the spindle into linear movement of the stem and the plug.
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