Patent ID: 6241018
Filing Date: 2001-06-05
Classification: E21B

Abstract:
An apparatus sized and adapted for setting a liner in a well bore, comprising:(a) a mandrel body having an upper end adapted to be connected in a pipe string and a lower end;(b) a float nut carried on the mandrel body, the float nut having external connecting threads for engaging mating threads located on a setting sleeve;(c) a latch assembly operably associated with the mandrel body and configured to restrict axial and rotational movement relative to the mandrel body before being disengaged; and(d) a locking member disposed between the latch assembly and the mandrel body and floating axially along a length of the mandrel body while being constrained against rotational movement relative to the mandrel body; wherein, upon application of torque to the mandrel body and without placing the apparatus in a weigh down position, the locking member is adapted to selectively transmit the torque between a portion of the latch assembly and the mandrel body after the latch assembly has been disengaged from the mandrel body.