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

Claim 7:
8. A method of using the drill rig of claim 1 in conjunction with a rod handler to remove a rod from a drill string, the method comprising:
moving, via the feed frame, the second head assembly toward the front portion of the drill rig until the at least one male thread of the spindle engages at least one female thread of the drill string;
rotating, by the motor the spindle to thereby threadedly couple the spindle to the first drill string component of the drill string that is at a proximal end of the drill string; and
moving, via the feed frame, the second head assembly toward the rear portion of the drill rig to thereby draw the drill string rearward until a second drill string component that is distal of the first drill string component is received within the rod holder.