Patent ID: 8006764

Claim:
A casing hanger assembly for hanging a string of casing on the interior of a housing that includes an internal grooved profile and an internal load shoulder, comprising: a tubular casing hanger comprising an upper end comprising internal threads for releasably coupling the casing hanger to a running tool and a lower end adapted to be coupled to an upper end of the string of casing; a tubular outer body movably coupled to an external surface of the tubular casing hanger comprising a tapered external surface at a lower end for engaging the internal load shoulder of the housing; a split ring movably coupled to an external surface of the tubular outer body comprising a tapered internal diameter and an external grooved profile adapted to mate with the internal grooved profile of the housing; and an energizing ring releasably coupled to an external surface of the tubular outer body comprising a tapered outside diameter at a lower end for engaging the tapered internal diameter of the split ring and one or more lugs at an upper end for releasably engaging the running tool.