Pipe coupling

Details Pipe coupling Pipe coupling

F - Mech Eng,Light,Heat,Weapons

16

L

285/47.4

F16L 21/06 (2006.01) F16L 17/04 (2006.01)

Patent

CA 1292257

ABSTRACT The non-profiled end portions of two pipes can be coupled to each other by a ring-shaped band which has at least one axially parallel gap and circumferentially extending corrugations defining two outer chambers and at least one median chamber. Each chamber is open toward the peripheries of the pipes and each outer chamber surrounds a different pipe. Such outer chambers contain arcuate safety devices with radially innermost portions in the form of claws serving to penetrate into the material of the respective pipes when the band is tightened around the end portions of the pipes by a clamping unit which is designed to reduce the width of the gap. The median chamber of the band confines a deformable annular insert which has marginal sealing lips and serves to establish a seal between the internal surface of the band and the peripheral surfaces of end portions of the pipes when the clamping unit is actuated to reduce the diameter of the band. Each safety device includes several arcuate sections which are connected to each other and whose median portions can be movably secured to the adjacent portions of the corresponding outermost corrugations of the band. - 1 -

563096

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