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US 7,093,860 B2Granted
System for joining sections of composite reinforced line pipe
AssigneeNCF Industries, Inc.
InventorNorman C. Fawley
Life of this patent
Estimating the term…
Abstract
A composite reinforced line pipe is manufactured by aligning first and second pipe segments each having a composite reinforcement wrapped circumferentially about a core, attaching the line pipes at a cut-back portion of their exposed core, wrapping a joint tape circumferentially about the cut-back portion, wrapping a resin reinforcement tape circumferentially about the joint tape, and curing the joint tape and resin reinforcement tape.
Claims12
An apparatus comprising:
- a first and second pipe segment each having a core and a composite reinforcement circumferentially surrounding the core, each pipe segment further having a first end with a cutback region in which the core is exposed, the first and second pipe segments joined at their respective first ends;
- and
- a joint tape overlaying the cutback region and adhering to the first and second pipe segments;
- wherein the joint tape comprises a resin saturated reinforcement tape extending circumferentially around the cutback region.
1 more element
An apparatus comprising:
- a first and second pipe segment each having a core and a composite reinforcement means circumferentially surrounding the core to provide hoop strength, each pipe segment further having a first end with a cutback region in which the core is exposed, the first and second segments joined at their respective first ends;
- and
- a joint tape means circumferentially overlaying the first ends adjacent the cutback region to provide hoop strength;
- wherein the joint tape comprises a resin saturated reinforcement tape extending circumferentially around the cutback region.
1 more element
An apparatus comprising:
- a first and second pipe segment each having a metallic core and a composite reinforcement circumferentially overlaying the metallic core, each pipe segment further having a first end with a cutback region in which the metallic core is exposed, the first and second segments joined at their respective first ends;
- and
- a joint tape circumferentially overlaying the first and second pipe segments at the cutback region to provide hoop reinforcement;
- wherein the joint tape comprises a resin saturated reinforcement tape extending circumferentially around the cutback region.
1 more element
Dependencies are inferred from the claim text.