Pipes and tubular conduits – Flexible – Spirally wound material
Reexamination Certificate
2004-10-13
2008-11-04
Brinson, Patrick F (Department: 3754)
Pipes and tubular conduits
Flexible
Spirally wound material
C138S131000, C138S134000, C138S129000, C138S130000
Reexamination Certificate
active
07445030
ABSTRACT:
A flexible tubular pipe, for example, for the transport of hydrocarbons. The pipe comprises successive independent layers including helical coils of strips or different sections and at least one polymer sheath. At least one of the coils is a strip or strips of polytetrafluoroethylene (PTFE).
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Coutarel Alain
Hardy Jean
Brinson Patrick F
Ostrolenk Faber Gerb & Soffen, LLP
Technip France
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