Plug ejecting holesaw

Details Plug ejecting holesaw Plug ejecting holesaw

1990-11-13

1991-12-31

Bishop, Steven C.

Cutting by use of rotating axially moving tool

With product handling or receiving means

Ejector

408204, 408703, B23B 5105

Patent

active

050767410

ABSTRACT:
The subject holesaw is similar to conventional holesaws. However, it has no shoulder stop on the mandrel and extended threads on the mandrel so that after a hole is cut the clutch is moved well away from the saw, the saw is held from rotating and the mandrel is threaded further into it so that its end ejects the plug.

REFERENCES:
patent: 3267975 (1966-08-01), Enders
patent: 3390596 (1968-07-01), Trevathan
patent: 4148593 (1979-04-01), Clark
patent: 4741651 (1988-05-01), Despres
patent: 4968189 (1990-11-01), Pidgeon

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