Patent ID: 7455331

Claim:
A doubled up pipe coupling for attachment to the end portions of two pipes, comprising: a two piece coupling body, where each piece has an inner end, an outer end, a main radial flange extending from the inner end of the piece toward the outer end of the piece with a secondary radial flange extending radially beyond the main radial flange and spaced from the inner end of the piece, intermittent radial flange shoulders extending radially from the main radial flange, and a receiving opening to receive and surround the end portion of one of the pipes to be coupled; an interlocking doubled up mechanism to join the two said pieces of the coupling body and two end portions of pipes simultaneously, wherein a first part of said doubled up mechanism is comprised of the two main radial flanges on the inner end of each piece of the coupling body which are held together face to face in mirrored matching positions between the secondary radial flanges by means of fasteners extending between said secondary radial flanges, and a second part of the doubled up mechanism includes a cylindrical cover having intermittent inner radial shoulders which are interlockable upon rotation of the cylindrical cover with the radial flange shoulders positioned intermittently around said main radial flanges, and at least one locking means which prevents the rotation of the cover with respect to the main flanges when the respective cover inner radial shoulders and flange shoulders are interlocked; an inner means housed by each piece of the coupling to surround and to hold the end portion of the pipe inside of the coupling body piece; and means to separate the inner means inside of the coupling body when the coupling body pieces are joined.