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Deformable pipe coupling having multiple radii of curvature

  • US 20080048444A1
  • Filed: 06/07/2006
  • Published: 02/28/2008
  • Est. Priority Date: 06/07/2006
  • Status: Active Grant
First Claim
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1. A pipe coupling segment, positionable straddling facing ends of a pair of pipe elements for securing said pipe elements together in end-to-end relationship, wherein said ends of said pipe elements have an outer surface of substantially cylindrical profile, said coupling segment comprising:

  • a plurality of sub-sections attached to one another end-to-end, each said sub-section having a surface region of a different radius of curvature from an adjacent surface region on an adjacent sub-section, said surface regions being disposed to interface circumferentially with the outer surfaces of said pipe elements; and

    connection members positioned at opposite ends of said coupling segment for adjustably connecting said coupling segment to a mating coupling segment, at least one of said connection members being adjustably tightenable for drawing said coupling segment and said mating coupling segment toward one another, said coupling segment being deformable upon adjustable tightening of said connection member so as to engage said surface regions with the outer surfaces of said pipe elements at a first contact point located about midway between said opposite ends of said coupling segment and at second and third contact points located at said opposite ends of said coupling segment.

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