Pipes and tubular conduits – Flexible – Spirally wound material
Reexamination Certificate
2005-05-10
2005-05-10
Brinson, Patrick (Department: 3754)
Pipes and tubular conduits
Flexible
Spirally wound material
C138S133000, C138S138000, C138S134000
Reexamination Certificate
active
06889718
ABSTRACT:
Flexible, armored pipes and methods of using the same are disclosed. In an exemplary embodiment, the flexible, armored pipe includes an inner liner which is surrounded by a pressure armor. The inner liner may be built-up by joining together profiles that have a number of recesses. In one embodiment, the profiles are configured as K-profiles, which have recesses that are arranged in adjoining surfaces of the profile. When the profiles are brought together, the recesses form a cavity in which a locking element can be inserted, the function of which is to prevent displacement of the K-profiles at right-angles to the axial direction of the pipe when exposed to axial, compressive forces. The locking element can be I-shaped, circular or configured as a wire with a C-shaped cross-section. The locking element can also be made either of a rigid or an elastic, deformable material. With a C-shaped locking element, the whole of the cavity, which is formed by the recesses, is not filled out. A channel is thereby formed through which undesired fluids can be led away or through which cleaning fluids can be introduced.
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Glejbøl Kristian
Rytter Jan Christian
Wedel-Heinen Jakob
Brinson Patrick
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
NKT Flexibles I/S
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