Patent ID: 6412157
Filing Date: 2002-07-02
Classification: F16L,Y10T

Abstract:
A device for displacing tubular elements relative to one another, comprising two clamping members each composed of two semi-circular segments and also movable between an open position in which each of said clamping members is open and said semi-circular segments are spaced from one another and can be arranged on a tubular element, and a closed position in which each of said camping members is closed and said semi-circular segments are located adjacent to one another to form together a circular clamping member, each of said clamping members having a hinge connecting said semi-circular segments at one radial side to move said semi-circular segments between said open and said closed positions, and means for tightening said segments with one another located at an opposite radial side; and fluid-operated means located between said clamping members and operative for moving said clamping members axially relative to one another, said fluid-operated means including two fluid-operated cylinder-piston units located at opposite radial sides and each having a cylinder directly connected with one of said clamping members between said hinge and said tightening means and a piston with a piston rod directly connected with the others of said clamping members between said hinge an(i said tightening means and movable relative to said cylinder in an axial direction.