F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
285/62
F16L 13/00 (2006.01) F16B 1/00 (2006.01) F16B 4/00 (2006.01) F16B 7/00 (2006.01) F16L 25/00 (2006.01)
Patent
CA 1299605
Abstract A device for coupling to an object such as a pipe, par- ticularly for joining pipes together, comprising a tubular sleeve of which at lea t one end portion has a wall that is weakened to facilitate radial deformation, a shape memory alloy driver having a portion of the sleeve other than the weakened portion positioned in the direction of its reco- very, and a collar of a dimensionally heat-recoverable poly- meric material having at least part of the weakened portion of the sleeve positioned in the direction of its recovery. Tensile strength or a seal or both between the sleeve and the object is provided by the shape memory alloy driver which deforms the sleeve into sealing contact with the pipes. Relief from transverse strain imposed on the joint between the pipe and the device is provided by the weakened portion of the sleeve which is supported by the collar.
559263
Marks & Clerk
Raychem Corporation
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