Patent ID: 8851784

Claim:
A system comprising: a first tubular member that defines an internal volume; a second tubular member telescoped within the first tubular member; a first locking system disposed within the internal volume of the first tubular member, the first locking system has first configuration that holds the axial orientation of the second tubular member relative to the first tubular member, and a second configuration in which the first locking system allows the axial orientation of the second tubular member relative to the first tubular member to change; a second locking system distinct from the first locking system, the second locking system disposed on an outside diameter of the second tubular member at a distal end of the first tubular member, the second locking system comprising: a sleeve that defines an internal diameter of circular cross-section through which the second tubular member extends, an exterior surface that defines a cross-section with a major axis and a minor axis, and a first slot; a cam that defines an internal surface of cross-section that defines a major axis and a minor axis, and an exterior surface, the cam in an operational relationship with the sleeve such that the internal surface of the cam circumscribes the exterior surface of the sleeve; wherein the cam has a first rotational orientation relative to the sleeve where the internal surface of the cam biases the sleeve against the second tubular member; and wherein the cam has a second rotational orientation relative to the sleeve where the sleeve is non-biased and the sleeve allows the axial orientation of the second tubular member relative to the first tubular member to change.