SLIP ASSEMBLY FOR A WELL TOOL

摘要

An improved slip assembly for a well tool having a mandrel wherein unitary slips are positively held to an upper and lower cone by integral dovetail coacting engaging surfaces with a centering sleeve engaging each slip for maintaining the longitudinal movement of all slips in unison as they are moved outwardly and inwardly with the centering sleeve including an opening for each slip whereby the slip may be connected to the cones by inserting the slips from the interior of the sleeve openings thereby allowing improved slip construction. A tubing anchor utilizing said slip assembly and having a mandrel with the upper cone threadably engaged to the mandrel and a lower cone mounted for rotation on the mandrel but longitudinally secured thereto by shear pins and a bow spring connected to the upper cone for actuating the movement of the slips.