Kelly valve

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12134943
APP PUB NO 20230062916A1
SERIAL NO

17789981

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A kelly valve for placement in a tubular drillstring has an inner cage, which holds a valve ball, lower valve ball seat and other valve components. A valve stem connected to the valve ball extends through a valve stem sleeve, positioned in an opening in the wall of the main body of the kelly valve. A thrust bearing of a low friction material, preferably of polyether ether ketone (PEEK), is positioned between the valve stem and the valve stem sleeve. A port in the valve ball seat permits pressure below the kelly valve to bypass a seal and act on the inside of the valve ball. A circumferential notch in the valve ball seat accommodates a circular spring, and prevents complete compression of the spring when the valve ball seat contacts an interior shoulder in the inner cage.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
M&M INTERNATIONAL LLCCADE LA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hincapie, Juan Carlos Broussard, US 2 0
Montet, Shaun Paul Youngsville, US 2 0
Staples, Tripp Cappel Youngsville, US 1 0

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