Repair device for pipes

Claim 1

A repair clamp for pipes and pipe couplings comprising a pair of rigid mating separately formed approximately semi-cylindrical clamp sections having arcuate end walls at opposite ends with interior faces defining openings of a diameter substantially less than the diameter of the semi-cylindrical clamp sections and engageable around a leaking pipe or pipe coupling to enclose and seal the pipe permanently in the region of the leak, said pair of semi-cylindrical clamp sections being of the same diameter as the arcuate end walls throughout the lengths thereof thereby adapted to form an enclosed cavity around a pipe, gasketing disposed at the interfaces of said clamp sections and at the interfaces of the interior faces of the end walls with the pipe to seal such interfaces, a radial flange on the exterior of one clamp section positioned at one longitudinal edge thereof and an interlocking engagement means on the opposite longitudinal edge thereof, an arcuate connector member separate from said clamp sections having an opposing radial flange on the exterior thereof on one longitudinal edge and a rigid interlocking engagement means substantially diametrically spaced therefrom adapted to interlock with said first mentioned interlocking engagement means on said one clamp section, said arcuate connector member extending substantially around the opposing clamp section circumferentially and engaging the circumferential face thereof substantially throughout its circumferential length in force transferring relationship, said opposing clamp section being free of radial flanges on both exterior longitudinal edges thereof, and adjustable connecting means between said radial flange on said one clamp half section and said opposing radial flange on said arcuate connector member, whereby said clamp is adapted to be clamped on a pipe by lateral swinging movement of said arcuate connector member about said interlocking engagement means and actuation of said adjustable connecting means.