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US 7,247,213 B2Granted
Method for manufacturing a connection for composite tubing
AssigneeFuture Pipe Industries, Inc.
InventorsHarris A. Reynolds, Jr., Thomas J. Walsh, Chris A. Lundberg, Joel D. Shaw
Life of this patent
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Abstract
A method for manufacturing a connection for composite tubing is disclosed. The method includes maintaining tension on the composite fibers while “winding in” the connector to the composite tubing. The tension on the fibers results in the fibers bridging across traps of the connector as they are being wound. The bridging results in improved load bearing characteristics of the connection.
Claims23
A method for making a connection for composite pipe comprising:
- attaching a connector having at least one liner trap and at least one trap to a liner portion of a segment of composite pipe, the pipe comprising a plurality of filament fibers wound around the liner;
- winding the plurality of filament fibers across the connector;
- compressing the plurality of filament fibers over the at least one trap;
- and
- curing a binder which impregnates the filament fiber, wherein tension is continuously maintained on the filament fibers across the at least one trap during winding and curing, so that the fibers forming the outer surface of the segment of composite pipe lack a microscopic waviness.
2 more elements
A method for making a connection for composite pipe comprising:
- attaching a connector having at least one trap to a liner portion of a segment of composite pipe, the pipe comprising a plurality of filament fibers wound around the liner;
- winding the plurality of filament fibers across the connector and on to a tensioning ring;
- tensioning the filament fibers using the tensioning ring;
- compressing the plurality of filament fibers over the at least one trap;
- and
- curing a binder which impregnates the filament fiber, wherein tension is continuously maintained on the filament fibers across the at least one trap during winding and curing, so that the fibers forming the outer surface of the segment of composite pipe lack a microscopic waviness.
3 more elements
Dependencies are inferred from the claim text.