Hole saw assembly

Cutting by use of rotating axially moving tool – Tool or tool with support – Having axial – core-receiving central portion

Reexamination Certificate

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Details

C408S23900A, C279S077000

Reexamination Certificate

active

10861400

ABSTRACT:
A hole saw assembly including a boss adapted to hold a hole saw and having a plurality of connecting shafts. The shafts rotationally engage a driving means and longitudinally engage a locking member that locks the boss, driving means and the locking member together. This is achieved by the driving means and the locking member having co-axially aligned cutouts allowing for the insertion of the shafts. The locking member is moveable between two positions in one the cutouts engaging the shafts and in the other allowing for free longitudinal movement of the shafts.

REFERENCES:
patent: 2779361 (1957-01-01), McKiff
patent: 3267975 (1966-08-01), Enders
patent: 3854840 (1974-12-01), Miyanage
patent: 3973862 (1976-08-01), Segal
patent: 5108235 (1992-04-01), Czyzewski
patent: 5352071 (1994-10-01), Cochran et al.
patent: 2004/0179911 (2004-09-01), Keightlev
patent: 08243824 (1996-09-01), None
patent: WO 2003024677 (2003-03-01), None
patent: WO 2004082875 (2004-09-01), None
patent: WO 2004085104 (2004-10-01), None

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