Drill bit apparatus

Details Drill bit apparatus Drill bit apparatus

2007-09-04

2007-09-04

Carter, Monica (Department: 3722)

Cutting by use of rotating axially moving tool

Tool or tool with support

With work-engaging structure detachable from cutting edge

C408S212000

Reexamination Certificate

active

10288955

ABSTRACT:
A drill bit apparatus having a central shaft and an annular collar mounted thereon. The central shaft is coaxially positioned within the annular collar. The central shaft has a bit end and a cutting tool end. The annular collar is spaced between the bit and cutting tool end. The bit is configured for releasable securement in a chuck of a drill or drill press. The cutting tool end is configured to securably receive a cutting tool therein. The cutting tool lower portion has a central bore cutter essentially coaxial with the shaft. The upper portion of the tool comprises a counter bore cutter having a width greater than the central bore cutter. The counter bore cutter extends below a lower surface of the annular collar a distance less than the distance the central bore cutter extends below the lower surface.

REFERENCES:
patent: 2782824 (1957-02-01), Robinson
patent: 2981127 (1961-04-01), Ransom
patent: 3997279 (1976-12-01), Porter
patent: 4480951 (1984-11-01), Regensburger
patent: 4527449 (1985-07-01), Sydlowski et al.
patent: 4826367 (1989-05-01), Kandarian
patent: 4962820 (1990-10-01), Fischer
patent: 5061127 (1991-10-01), Thomas
patent: 5291806 (1994-03-01), Bothum
patent: 5649796 (1997-07-01), Durney
patent: 5882151 (1999-03-01), Wirth et al.
patent: D455466 (2002-04-01), Budget
patent: 2003/0133765 (2003-07-01), Capriotti
patent: 171830 (1986-02-01), None
patent: 395335 (1990-10-01), None
patent: 2271948 (1994-05-01), None

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