B - Operations – Transporting – 26 – F
Patent
B - Operations, Transporting
26
F
164/59, 30/78
B26F 1/14 (2006.01)
Patent
CA 1312818
ABSTRACT OF THE DISCLOSURE A punch pin cutting edge configuration having a leading edge and a following edge is described. The leading edge engages a workpiece, such as paper, before the following edge. The following edge is at a steeper angle than the leading edge relative to the workpiece being punched. The cutting edge thus produced reduces the force necessary to punch through the workpiece.
564564
Acco World Corporation
Osler Hoskin & Harcourt Llp
Wagner Willard E.
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