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US 10,823,324 B2Granted
Method of lining a tubular structure
AssigneeRadius Systems Limited
InventorDerek Muckle
Life of this patent
Estimating the term…
Abstract
Method of lining a tubular structure with a plastics liner pipe comprising the steps of: —temporarily reducing an outside diameter of the liner pipe by passing the liner pipe through a roller system; —cooling the liner pipe once its outside diameter has been reduced and applying a thermal restraint; —transporting the liner pipe to an installation site remote from the roller system; —removing said thermal restraint; and —installing the liner pipe in said tubular structure at said installation site.
Claims18
A method of preparing a plastics polyolefin pipe for transport, comprising:
- temporarily reducing an outside diameter of a polyolefin pipe by passing the pipe through a roll throat formed by at least one pair of opposing reducing rollers;
- cooling the reduced outside diameter pipe and applying a thermal restraint;
- transporting the thermally restrained pipe to an installation site remote from the at least one pair of opposing reducing rollers;
- removing said thermal restraint;
- and
- installing the pipe at said installation site,
- wherein the step of temporarily reducing an outside diameter of the pipe further comprises temporarily increasing a wall thickness of the pipe.
4 more elements
Dependencies are inferred from the claim text.