Abstract: A pipe clamp device for the compression of a gasket relative to a pipe joint comprises a clamping ring having interconnectable portions with a peripheral gasket-engaging surface and adapted for disposition around a pipe, connecting devices to connect the ring to an anchor ring to apply a generally axial clamping force to the clamping ring and thereby to the gasket, compression devices operable to cause radially inward contraction of the ring portions and consequent radial compression of the sealing gasket, and a varying diameter inner peripheral surface on the anchor ring to allow use on pipes of various diameters.

Abstract: A flexible wrapping is adapted to fit around a section of pipe or pipeline requiring repair. The wrapping has inner and outer skins and a plurality of tags for limiting the separation between the skins. The wrapping is sealed in position around the pipe or pipeline by means of straps. A mould forming material is introduced through a filler into the space between the skins and then allowed to solidify. A sealant is then introduced under pressure through an injector into the mound space between the inner skin and the pipe or pipeline. A pressure gauge indicates the pressure in the mould space. Gases may escape from the mould space through a vent. The invention provides a method of and apparatus for repairing a leak in a pipe or pipeline.