Quick change drill extender system

Details Quick change drill extender system Quick change drill extender system

1997-03-07

1999-09-28

Bishop, Steven C.

Cutting by use of rotating axially moving tool

Tool or tool with support

Including detailed shank

279 75, 279143, 279905, 408239A, B23B 5112, B23B 31107

Patent

active

059576340

ABSTRACT:
A drill extender apparatus having: (1) an rotary drive coupler providing, on one end, threaded engagement to the drive of a conventional electric drill and a polygonal shaped driven tool receptor cavity and locking collet at the other end; and (2) a tool extender, having drive shaft at one end, and a polygonal shaped driven tool receptor cavity and locking collet at the other end for receiving a tool, such a tool would include one of a set of drill bits, each having an extender shaft having a notched polyhedron shaft having multiple positions for drilling/boring deep holes, having multiple grooves adapted to be received by the quick disconnect collet of the tool extender wherein the balls selectively engage a groove for engaging said polygonal shaft and the polygonal shaped shaft is locked in place by the action of the polygonal cavity of said collet.

REFERENCES:
patent: 2752965 (1956-07-01), Mackey
patent: 3576076 (1971-04-01), Weissman
patent: 4184692 (1980-01-01), Benson et al.
patent: 4514117 (1985-04-01), Scott
patent: 4692073 (1987-09-01), Martindell
patent: 4818157 (1989-04-01), Kouvelis
patent: 4995768 (1991-02-01), Craft
patent: 5062749 (1991-11-01), Sheets
patent: 5624214 (1997-04-01), Carroll
patent: 5660400 (1997-08-01), Kasmeier et al.

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