B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
77/31
B23B 51/04 (2006.01)
Patent
CA 1293872
Hole Saw Plug Ejector Abstract Cylindrical type hole saws, as known, necessarily allow for the cut out hole plug to enter the cylinder as it is being cut and remain there when the hole saw is withdrawn from the workpiece. Generally, this plug becomes bound within the cylinder. In order to remove this plug, a screwdriver blade or similar slim object is inserted into one of the several slots provided in the periphery of the saw blade. The screwdriver is then canted, thereby forcing the plug outward. The present invention Provides for the removal of the cutout plug without disconnecting the drill motor and makes the removal faster, safer, and easier than is presently known. Other reference devices which attempt to solve this problem utilize manual force in an attempt to dislodge the plug. Very tightly bound plugs may still present difficulty depending upon the physical strength of the user. None of these devices utilize the novel features of the present invention.
557930
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