Valve seat assembly, downhole tool and methods

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9745828
APP PUB NO 20130291962A1
SERIAL NO

13935076

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A circulation tool includes a tubular outer body having a main bore and at least one flow port in a wall thereof, and a valve seat assembly including a valve body, a valve member, and locking elements are movably mounted within the outer body main bore. The valve seat assembly is biased towards a first position in which flow through the outer body flow port is prevented and the locking element is in the extended position, restricting passage of the valve member along the valve body bore and out of the valve body. The valve seat assembly is movable to a second position in which the locking element is in the retracted position, permitting passage of the valve member along the body bore and out of the body. The valve seat is also movable to a third position in which flow through the outer body flow port is permitted.

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First Claim

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Family

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Patent Owner(s)

Patent OwnerAddress
SPECIALISED PETROLEUM SERVICES GROUP LIMITEDABERDEEN AB32 6UF

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Telfer, George Aberdeen, GB 69 1271

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