J. Ray Mcdermott & Co., Inc.

Warren A Petrie

A floating buoy for use in a marine environment includes a buoyant body for maintaining the buoy afloat, the body including a resilient outer skin, a low density filler within the outer skin, and a central core disposed between an upper end and a lower end of the body and adapted to permit the passage of a line therethrough. Upper and lower protective caps are removably attached at upper and lower ends of the body respectively, the caps each including an opening to permit the passage of the line therethrough. Affixed to the outer surface of each cap is a plurality of resilient fenders, the cap and fender structure being adapted to absorb shock loading on the buoy resulting from contact with foreign objects. The caps may be easily removed and repaired or replaced, thereby extending the useful life of the buoy.

Floating buoy

A high pressure flow-through swivel joint is particularly adapted for connecting high pressure water lines to a jet sled in an underwater pipe burying apparatus. The joint includes mating spherical joint surfaces which allow pivotal adjustment during assembly, in order to compensate for construction tolerances. In addition, the mating spherical surfaces allow rotational freedom for the joint inlet passage when the pipe burying system is in operation.

Growing community of inventors

New Orleans, LA, United States of America

Warren A Petrie