Expandable Skin for Restructuring an Inner Lining
OwnerNicolas Gautreau, Yves Charroninventors
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Abstract
A skin and a method for restructuring the inner surface of a tube of long length includes manufacturing a skin, in a material with expansion rate greater than 50%, the external surface of which includes a restructuring print determined in order to take into account the longitudinal and radial expansions that the skin is going to undergo, and as a function of the desired final surface state for the tube to be restructured, longitudinally expanding the skin up to the required length for the tube, longitudinally introducing expanded skin inside tube to be restructured, and radially expanding the skin to realize the restructuring.
Claims15
Method for restructuring the inner surface (3) of a tube (2) of long length that comprises the steps of:
- manufacturing a skin (1), in a material with expansion rate greater than 50%, which external surface includes a restructuring print determined in order to take into account the longitudinal and radial expansions that the skin is going to undergo, and as a function of the desired final surface state for the tube to be restructured;
- longitudinally expanding the skin up to the required length for the tube;
- longitudinally introducing expanded skin (1′) inside tube (2) to be restructured
- radially expanding skin (1″) to realize the restructuring.
Longitudinally expandable skin in a material with an expansion rate greater than 50%, for restructuring the surface of a tube inner lining forming a duct for gas or fluid transport, whose external surface includes a restructuring print determined in order to take into account the longitudinal and radial extensions that the skin is going to undergo, and according to the desired final surface state for the tube to be restructured.
Dependencies are inferred from the claim text.