B - Operations – Transporting – 23 – D
Patent
B - Operations, Transporting
23
D
B23D 45/00 (2006.01) B23D 61/02 (2006.01) B27B 5/32 (2006.01)
Patent
CA 2290178
A power tool including a motor, an arbor driven by the motor, a blade disposed on the arbor and having a rotational axis, the blade further having a hole, first and second clamps connected to the arbor and clamping the blade, at least one of the first and second clamps and arbor have a drive surface for contacting at least part of the arbor hole perimeter, the drive surface having a different shape than the hole, the drive surface having a segment, which in a first position does not contact a segment of the hole, and which in a second position upon rotation of the arbor, contacts a substantial length of the segment of the hole. Also disclosed is a blade having a rotational axis including a main body, a hole formed within the main body for receiving a drive surface, wherein the drive surface has a different shape than the hole, and a segment, which in a first position does not contact a segment of the hole, and which in a second position upon rotation of the drive surface contacts a substantial length of the segment of the hole.
Dibbern John E.
Krout Daniel L.
Black & Decker Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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