Multi-function pressure regulation valve

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11933408
SERIAL NO

17474437

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A flow control device includes a housing with an inlet and an outlet and a flow conduit disposed in the housing. The inlet, the flow conduit, and the outlet define a flow passage. A valve seat is disposed in the housing downstream of the inlet, and a shuttle is movably disposed in the housing and displaceable between a closed position engaging the valve seat to close the flow passage and an open position spaced from the valve seat to open the flow passage. A sealed chamber is defined between the housing and the flow conduit. A port coupled with a source of pressurized fluid communicates with the sealed chamber, where the shuttle is displaceable between the closed position and the open position based on a pressure in the sealed chamber. The threshold water pressure for displacing the flow conduit may be adjustable by modifying the pressure in the sealed chamber.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
NELSON IRRIGATION CORPORATION848 AIRPORT ROAD WALLA WALLA WA 99362

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Greenwood, Riley D Walla Walla, US 18 86
Nelson, Craig B Walla Walla, US 60 825

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