Flow Adjustment Valve For Sprinkler
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United States of America Patent
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N/A
Issued Date -
Oct 3, 2024
app pub date -
Mar 31, 2023
filing date -
Mar 31, 2023
priority date (Note) -
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status (Latency Note)
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Abstract
A sprinkler that includes an internal flow adjustment valve is provided. The valve enables an operator of the sprinkler to selectively shut off, turn back on, or adjust the flow of water through the sprinkler while a riser of the sprinkler is in its extended position. The valve includes a valve seat disposed on an internal flow tube and a valve plunger having an actuation shaft and a throttle nut. An outboard end of the actuation shaft can be accessed and rotated at a riser cap, which causes vertical movement of the valve plunger as threads on an inboard end of the actuation shaft engage a threaded passage disposed in the internal flow tube. Vertical movement of the valve plunger causes movement of the throttle nut relative to the valve seat and opening and closing of the valve. The throttle nut and the valve seat may have corresponding dual helical surfaces.
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