Charger Industries Canada Limited Partnership

Tyler Armstrong

Quentin Pare

Carl Brown

An elongate battery pack for use in MWD drilling apparatus having torsion damping means at one or both ends thereof to reduce or eliminate 'high g' rotational accelerations and decelerations being transmitted from the drill string to the battery pack within the MWD apparatus. In one embodiment the torsion damping means comprises torsion limiting means in the form of an electrical connector which allows electrical communication between the battery pack and remaining components of the MWD apparatus, but which allows relative rotational movement between (i) the MWD apparatus and its associated electrical leads connected to the battery pack, and (ii) the electrical leads in the battery pack connected to the battery therein.

Growing community of inventors

Calgary, Canada

Tyler Armstrong