Patent ID: 11959336
Assignee: nan
Field: Civil engineering (Other fields)
Classification: CPC E  Y | IPC E

Claim 0:
1. A drilling system to drill a hole in the ground, the drilling system comprising:
a first member;
a second member; and
a retention system comprising a connection to connect the first member and the second member in:
a first locked position wherein the retention system retains the first member and the second member from substantially moving relative to one another along a longitudinal axis of the drilling system and in a first rotational direction of the drilling system, and wherein the first member and the second member can move relative to one another in a second rotational direction of the drilling system to disengage from the first locked position; and
a second locked position wherein the retention system retains the first member and the second member from substantially moving relative to one another along the longitudinal axis of the drilling system and in the first rotational direction of the drilling system, and wherein the first member and the second member can move relative to one another in the second rotational direction of the drilling system to disengage from the second locked position.