Apparatus to drill and tap a hollow underwater member

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4862568
SERIAL NO

07204951

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An apparatus of reinforcing a hollow underwater member of an offshore platform which includes removable power-actuated motors, retaining means for preventing rotational movement of the motors relative to the retaining means while permitting axial movement of the motors, a drill and tap operatively connected to and driven by the motors for forming at least one port through a side wall of the hollow underwater member, and means operatively engageable with the motors for controlling the axial movement of the drill and tap in at least one direction during a port-forming operation.

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Patent Owner(s)

Patent OwnerAddress
SHELL OFFSHORE INC A DE CORPDE

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Norman, Dale D Marrero, LA 1 8
Wankmuller, Richard N New Orleans, LA 2 10

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