Patent ID: 6582158
Filing Date: 2003-06-24
Classification: E02D

Abstract:
A device for transferring a vibrating movement to a rigid pipe for letting it penetrate into or removing it from a bed in upright position, comprising clamping means for clampingly holding the upper end of the pipe for transfer of the vibrating movements thereto and biasing means for the clamping means, the biasing means comprises a cylinder/piston assembly arranged to extend in an axial direction of the pipe, wherein the clamping means comprises at least two clamping members and one or more wedge members which are positioned for wedging interaction with the clamping members upon activation of the cylinder/piston assembly to bias the clamping members radially outwardly away from each other for clampingly engaging the inner surfaces of the pipe, the device further comprising a body with means for attachment to a vibrator block, the clamping members forming a rigid unity with the body, considered in the axial direction of the pipe.