B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
B23B 51/08 (2006.01) B23B 51/04 (2006.01) B23B 51/05 (2006.01)
Patent
CA 2676942
A hole saw with slug remover including a top cylindrical housing; a bottom cylindrical housing attached to the top cylindrical housing, the bottom cylindrical housing having teeth for cutting; a pilot drill extending through the top cylindrical housing and bottom cylindrical housing; a drive screw rotatably affixed to the top cylindrical housing, the drive screw having a threaded exterior; and an ejection plunger engaging the threaded exterior of the drive screw wherein the ejection plunger is forced downward to eject a slug when the drive screw rotates counter-clockwise and is forced upward when the drive screw rotates clockwise.
Macrae & Co.
Werner Travis E.
LandOfFree
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