Drill tool shaft-to-housing locking device

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along... – Sectional guide or shaft having means to lock sections in...

Reexamination Certificate

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Details

C175S306000, C175S325600

Reexamination Certificate

active

10876661

ABSTRACT:
In a tool having an inner member supported within an outer member, wherein the tool defines a longitudinal axis, a device is provided for preventing relative rotation of the inner member and the outer member. The device is comprised of a locking mechanism and a locking actuator. The locking mechanism is positioned between the inner member and the outer member, wherein the locking mechanism is movable longitudinally between a first locking mechanism position in which the inner member and the outer member are disengaged and capable of relative rotation and a second locking mechanism position in which the inner member and the outer member are engaged and not capable of relative rotation. The locking actuator causes the locking mechanism to move longitudinally.

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