Pipes and tubular conduits – Combined – With end structure
Reexamination Certificate
2011-08-23
2011-08-23
Hook, James F (Department: 3754)
Pipes and tubular conduits
Combined
With end structure
C138S141000, C138S153000, C138SDIG010, C277S652000, C285S259000
Reexamination Certificate
active
08001996
ABSTRACT:
A composite pipe having at least one metal end piece (2, 3) with a free end and a non-metal tubular component (10). The tubular component (10) is coupled to the at least one end piece (2, 3) opposite of the free end of the end piece (2, 3), by means of at least one peripherally extending, axially acting groove (6, 7) that the non-metallic tubular component (10) engages. The non-metallic tubular component (10) generally comprises axial fibers (11) extending down into the at least one groove (6, 7). The groove (6, 7) has a bottom (13) and a flank (14), which flank is located furthest away from the free end of the end piece (2, 3). Between the flank (14) and the axial fibers (11) there is provided an intermediate layer (15). Also described is a method of manufacturing such a composite pipe.
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Carlsen Tor-Oystein
Johnsen John Magne
Paulshus Bjorn
Storhaug Turid
Aker Kvaerner Subsea AS
Birch & Stewart Kolasch & Birch, LLP
Hook James F
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