Apparatus for welding submerged pipe ends

US4133180A · kind A · utility

Assignees

• Compagnie Francaise Des Petroles · FR
• Etudes Petrolieres Marines · FR
• Ateliers et Chantiers de Bretagne-ACB · FR
• Compagnie Maritime D'Expertises · FR
• Compagnie General pour les Developpements Operationnels des Richesses Sous-Marines CG Doris · FR
• Societe Nationale Elf Aquitaine · FR

Inventors

• Philippe C. Nobileau · Paris, FR
• Rene M. Dermy · Évry, FR
• Guy J. Fleury · Paris, FR

Key dates

• Filing date: Jun 28, 1976
• Grant date: Jan 9, 1979
• Expiry date: Jun 28, 1996

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23K9/0061
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

In a method of welding together two submerged pipe ends, the pipe ends are spaced apart and introduced through orifices into a receptacle by which they can be isolated from the surrounding medium. The spaced pipe ends are connected by a connection sleeve and after isolation are welded to the connection sleeve.