Chevron Research Company

Eric E Kemp

Harold R Smith

Leonard F Sansone

James H Miller

A liner pipe comprising sections of polyethylene pipe connected by articulated gasketed joints of bell and spigot design which are specifically adapted for ease of compression lining of large diameter pipe with minimum disruption to surface traffic and pipeline flow.

Pipeline rehabilitation articulated gasketed-joint pipe

A method of rehabilitating buried pipelines by the introduction of a particular liner pipe comprising sections of polyethylene pipe connected by articulated gasketed joints of bell and spigot design which are specifically adapted for ease of lining large diameter pipeliner with minimum disruption to surface traffic and pipeline flow.

Pipeline rehabilitation method utilizing articulated gasketed-joint pipe

An apparatus for the production of reinforced tubes by helical winding of thermoplastic strips and reinforcing members on a rotating mandrel, comprises a dual orifice extrusion die means capable of extruding a plastic strip in several different widths while simultaneously feeding a reinforcing member to the rotating mandrel.

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Alpharetta, GA, United States of America

Eric E Kemp