F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
285/58
F16L 21/00 (2006.01) F16L 17/02 (2006.01) F16L 17/04 (2006.01)
Patent
CA 1275128
INVENTION: PIPE COUPLING ABSTRACT OF THE DISCLOSURE A pipe coupling for coupling together pipe ends of pipes to be interconnected comprises a clampable housing approximately in the shape of a tightening clamp or collar for being clamped about the pipe ends such that tightening of the clampable housing causes the housing to contract or draw together around the pipes to be connected. The housing possesses annular or ring-shaped, inwardly flexed flanges at its end faces. A sealing gasket made from an elastic material such as synthetic rubber is enclosed in the housing and possesses a substantially C-shaped axial cross-sectional configuration. Clamping rings provided on the inner sides of the sealing gasket are capable of being reduced in diameter and supported in axial direction on the housing. These clamping rings are provided on their inner surfaces with claws or claw-like elements. To limit the penetration depth of these claws, especially in soft pipe material, the substantially cylindrical clamping rings are supported in the housing by their outer jacket surfaces on the inner edges of the housing flanges and by respective stop members as well as respective substantially conical spring rings. The claws of the clamping rings comprise teeth protruding inwardly from the inner jacket surfaces of the clamping rings towards the centers of the pipe ends. These teeth possess convex backs arched away from the center portion of the pipe coupling and substantially flat front surfaces which extend into clamping ring recesses located substantially directly before these front surfaces. - 2 -
510053
Gowling Lafleur Henderson Llp
Straub Immanuel
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