Patent ID: 7086462

Claim:
A well bore anchor tool apparatus, comprising: an elongated hollow mandrel; a first means carried by said mandrel for frictionally engaging an inner wall of a casing mounted adjacent a top of the mandrel; a means for retaining said first means for frictionally engaging the casing inner wall, in a detachable engagement with the mandrel, said retaining means comprising a wicker sleeve mounted in a threadable engagement with the mandrel, a plurality of wicker dogs threadably engaging an exterior surface of the wicker sleeve, and a retainer member mounted in a substantially surrounding relationship about said wicker dogs, said retainer member being provided with recesses in an exterior surface thereof for receiving therein, said means for retaining said first means for frictionally engaging the casing inner wall; a second means carried by the mandrel for frictionally engaging the inner wall of the casing mounted below said first means for frictionally engaging the casing inner wall, said second means being adapted for movement between a first retracted position and a second released position in frictional contact with the casing inner wall.