Patent ID: 7967343

Claim:
An adapter for clamps, particularly for welding plastic pipes, comprising at least four bodies in the form of respective metal plates arranged parallel to and laterally spaced from each other along an axis, said at least four bodies having respective circularly arcuate radially inner rims that have a same radius of curvature and centers of curvature arranged on said axis so as to form a discontinuous and partially cylindrical concave surface which is adapted to lock the pipes in cooperation with a similar surface formed on a complementary and opposite adapter, each of said at least four bodies being fixedly secured to another of said at least four bodies by a plurality of connector elements traversing the respective ones of said at least four bodies and extending parallel to said axis, said at least four bodies comprising at least a first body, a second body a third body and a fourth body, said first body extending along a larger circular arc than said second body and said third body, said second body and said third body being fixed at a face of said first body, said fourth body being arranged at the opposite face of said first body with respect to the face at which said second body mid said third body are fixed.