Patent ID: 11873714
Assignee: LONGYEAR TM, INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 11:
12. A method of using the drill rig of claim 2 in conjunction with a rod handler comprising:
gripping a drill string with the rod holder;
rotating, using the motor, the spindle to decouple the spindle from the drill string;
moving, via the feed frame, the second head assembly toward the rear portion of the drill rig;
aligning, using the actuator, the overshot loading assembly with the longitudinal drilling axis of the drill rig;
pumping, from the overshot loading chamber using a water pump, an overshot until it engages a core tube assembly;
retracting, using a wireline winch, the core tube assembly until the overshot is received in the overshot loading assembly;
moving, via the feed frame, the second head assembly toward the rear of the drill rig until the core tube assembly is removed entirely from the drill string; and
gripping the core tube assembly with the rod handler.