B - Operations – Transporting – 25 – B
Patent
B - Operations, Transporting
25
B
B25B 13/02 (2006.01) B25B 13/08 (2006.01) B25B 13/12 (2006.01) B25B 13/46 (2006.01)
Patent
CA 2100511
Abstract of the Disclosure A speed wrench has a short jaw and a long jaw inter- connected by a throat, the jaws respectively having short and long driving surfaces which are generally parallel but which may be very slightly inclined with respect to each other. The throat has a generally flat surface portion adjacent to the short driving surface and inclined at an angle of at least 120° thereto and connected thereto by an arcuate recess in the short jaw. This generally flat surface portion may be slightly convex having a radius greater than twice the distance between the driving surfaces. The remainder of the throat is arcuate and is shaped and dimensioned so that it will not contact a fastener engaged with the driving surfaces. Open-end wrench and adjustable wrench versions are disclosed, and in the former the support surface portion of the throat has a length approximately one-half the side dimension of an associated fastener. In the adjustable wrench version, at least the long driving surface may be serrated.
Hoff Jeffrey H.
Mikic Frank
Smart & Biggar
Snap-On Tools Corporation
LandOfFree
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