Patent ID: 8104387

Claim:
An apparatus for facilitating the removal of a tube stub from a drum, comprising: an arbor configured to extend within the tube stub a rotatable cutter protruding from an external surface of the arbor and configured to score an internal surface of the tube stub along an axial direction of the tube stub to facilitate removal of the tube stub from the drum; a cutter motor attached to the arbor; at least one chain disposed within the arbor and configured to transfer power from the cutter motor to the cutter to cause the cutter to rotate; an anchor device for insertion into a second tube stub adjacent to the tube stub, wherein the anchor device is configured to expand within the second tube stub to anchor the apparatus to the drum; and an adjustable barrier member configured to move relative to the cutter and to cover at least a portion of the cutter protruding outside of the arbor for adjusting a depth of the score in the tube stub.