Patent ID: 9062698
Filing Date: 2015-06-23
Classification: E21B,F16B

Abstract:
1. An apparatus for holding a pipe, comprising: a device body extending axially along an axis; plural clamping elements that are arranged movably in said device body, and that each respectively have a first sliding surface on a radially outer side thereof, and that each respectively further have a second sliding surface provided thereon; a positioning element that is arranged axially movably in said device body, and that has an actuating surface arranged adjacent to and cooperating with said first sliding surface of each one of said clamping elements so that an axial motion of said positioning element exerts a radial motion component on said clamping elements through said actuating surface cooperating with said first sliding surface of each one of said clamping elements; and a guide element with a guide surface positioned and arranged adjacent to and cooperating with said second sliding surface of each one of said clamping elements.