Abstract: An inflatable sleeve including one or more tubular portions including zones having different dimensions (e.g. thickness and/or diameter) and/or physical properties (e.g. elastic modulus) to enable control over the inflation characteristics of each zone, and a method of manufacturing same. The present invention further relates to a pipe junction sealing packer incorporating such an inflatable sleeve.

Abstract: A controlled bending device in the form of an elongate member including a series of blocks configured to direct and/or control an extent of bending of the elongate member. The present invention further relates to a sealing packer for use in installing a flexible liner into a junction between a main pipe and a branch pipe, the sealing packer incorporating the bending device in a flexible lateral arm thereof to facilitate guidance of the flexible lateral arm into the branch pipe when the sealing packer is inserted (pushed or pulled) through the main pipe.

Abstract: An inflatable sleeve including one or more tubular portions including zones having different dimensions (e.g. thickness and/or diameter) and/or physical properties (e.g. elastic modulus) to enable control over the inflation characteristics of each zone, and a method of manufacturing same. The present invention further relates to a pipe junction sealing packer incorporating such an inflatable sleeve.