B - Operations – Transporting – 25 – B
Patent
B - Operations, Transporting
25
B
81/51
B25B 13/08 (2006.01) B25B 13/00 (2006.01)
Patent
CA 2027681
The open-end wrenching head includes two jaws and a throat interconnecting the jaws. The jaws include planar jaw driving surfaces each with at least one serrated region thereon constructed and arranged to engage a portion of a selected side of a fastener. The throat may include either an arcuate surface or two planar throat driving surfaces having serrated regions thereon. Each of the serrated regions on the driving surfaces may include symmetrical or asymmetrical grooves. The plane of these grooves may be parallel to the driving surfaces or at an angle of about 1 to 3°.
Mikic Frank
Pagac William T.
Severson Thomas S.
Sorbie Doug M.
Smart & Biggar
Snap-On Tools Corporation
LandOfFree
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