B - Operations – Transporting – 25 – B
Patent
B - Operations, Transporting
25
B
B25B 13/06 (2006.01) B25B 13/00 (2006.01)
Patent
CA 2595846
A wrench tool is described which comprises an orifice configured to control the rotation of a hexagonal work piece. The orifice is substantially cylindrical and comprises an array of only eighteen principle longitudinal grooves positioned therein substantially forming a symmetrical pattern around an imaginary central axis. The eighteen grooves are formed and spaced apart so as to create an array of only eighteen principle longitudinal protuberances. The protuberances substantially form a symmetrical pattern around the imaginary central axis for engagement with the hexagonal work piece. In one embodiment, each protuberance is formed having at least two engaging surfaces positioned together in at least partial alignment with a predetermined engaging angle. And, in yet another embodiment, the protuberances may be positioned apart relative to each other by predetermined distances, and, each protuberance may have a predetermined height to length ratio.
Macor Richard J.
Ridout & Maybee Llp
LandOfFree
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