Patent ID: 6736430
Filing Date: 2004-05-18
Classification: F16L,Y10S

Abstract:
A method of sealing a joint (6) between two insulated pipes (14) the insulation (7) of each of which ends short of the joint, which comprises:(a) surrounding the exposed portions of pipe with a casing (8); (b) joining an end of the casing to the adjacent pipe insulation by installing around the end of the casing a sleeve comprising a recoverable polymeric material (1) wherein the sleeve is coated with a component selected from the group consisting of a sealant (3), a heat-activatable adhesive (2), and a mixture of a sealant and a heat-activatable adhesive, and (c) causing the polymeric material to recover, the sealant to soften and the heat-activatable adhesive to be activated, characterised in that at least one region (4) of the sleeve remains uncoated to provide a relatively high-friction slip-resisting grip when the sleeve is being recovered in use.