B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
77/41
B23B 47/00 (2006.01) B23B 49/00 (2006.01) B23Q 11/00 (2006.01)
Patent
CA 1048307
ABSTRACT OF THE DISCLOSURE: A device attachable to a power drill for the collection and removal of material released during drilling comprising, a collection tube; clamp means for mounting the tube parallel to the longitudinal axis of the power drill, the power drill having a drill bit and spout surrounding the drill bit in proximity of the tip area of the drill bit ball closure means forming a return closure in the collecting tube, and locking means on the ball closure means for holding the closure means in open position.
246305
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