Compagnie Francaise Des Petroles

Compagnie Generale Pour Les Developpements Operationnels Des Richesses

Compagnie Maritime D'expertises

Etudes Petrolieres Marines

Ateliers Et Chantiers De Bretagne

Etudes Petrolieres Marines, S.a.r.l.

Compagnie Maritime D'expertises, S.a.

Compagnie Generale Pour Les Developpements Operationnels

Entreprise De Recherches Et D'activites Petrolieres

Ateliers Et Chantiers De Bretagne - A.c.b. - S.a.

Michel G Lecordier

A lip-seal for sealing the junction between two parts includes a body for mounting on one part, a sealing lip extending therefrom for application against the other part, and an inflatable chamber defined between the body, the lip and a diaphragm extending between, and connected to, the lip and the body, the arrangement being such that on inflation of the chamber the profile of the lip is modified so that it is moved away from the other part to permit the other part to be assembled with the one part without damage to the lip seal and without premature application of the lip to the other part.

Inflatable lip seal for pipes

Apparatus for checking the bore and for plugging a pipe comprises a frame movable along the interior of the pipe, the frame carrying means for detecting a deviation in the bore of the pipe, means responsive to an overpressure of fluid in the pipe in a direction opposite to that in which the apparatus is intended to move, and a movable control part responsive to the detection of a deviation and of an overpressure for operating locking means for locking the apparatus relative to the pipe and sealing means for sealing the pipe.

Apparatus for internally checking well pipe bore and for automatically

Growing community of inventors

Marseille, France

Michel G Lecordier