Thread profiles for rotary shouldered connections

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United States of America Patent

PATENT NO 10767683
APP PUB NO 20180023611A1
SERIAL NO

15554188

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Importance

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Abstract

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A thread profile for rotary shouldered threaded connections uses different thread root radii for the pin thread and the box thread in order to optimize stress distribution and maximize thread contact area. The thread profile may be adapted for use in double-shouldered, two-start, taper-threaded connections to replace currently-used threaded connections such as the rotor-to-adapter connection in a downhole motor. The thread profile may incorporate an undercut buttress design.

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Patent Owner(s)

Patent OwnerAddress
NOV CANADA ULC4300 BANKERS HALL WEST 888 - 3RD STREET S W CALGARY ALBERTA T2P 5C5

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kalantari, Masoud Calgary, CA 12 16
Marchand, Nicholas Ryan Edmonton, CA 32 213

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