Quick change drill bit

Details Quick change drill bit Quick change drill bit

2005-06-21

2005-06-21

Howell, Daniel W. (Department: 3722)

Cutting by use of rotating axially moving tool

Tool or tool with support

Having axial, core-receiving central portion

C408S0010BD, C408S23900A, C279S043300, C279S046300, C279S093000, C175S403000, C125S020000, C451S541000

Reexamination Certificate

active

06908264

ABSTRACT:
A quick-change core drill includes an adapter and a generally tubular drill barrel. The adapter comprises a first end adapted to be removably connected to a drill spindle and a second end adapted to be removably connected to the drill barrel. The drill barrel includes an inside diameter D1, a first end, and a second end having a crown with an inside diameter D3. The first end of the drill barrel is adapted to be removably connected to the second end of the adapter such that the inside diameter D1 is at least as large as the inside diameter D3. Upon detection of a jammed core inside the drill barrel, the user can quickly and easily remove the jammed core from the drill barrel by disconnecting the drill barrel from the adapter. Since there are no obstructions present, the user can simply remove the jammed core from the first end of the drill barrel.

REFERENCES:
patent: 2996061 (1961-08-01), Miller
patent: 3163190 (1964-12-01), Ervin
patent: 3817648 (1974-06-01), Miller
patent: 3954347 (1976-05-01), Mechalas
patent: 4101238 (1978-07-01), Reibetanz et al.
patent: 4468826 (1984-09-01), Morres, Jr.
patent: 4664567 (1987-05-01), Edwards
patent: 4692073 (1987-09-01), Martindell
patent: 4777715 (1988-10-01), Roberts
patent: 5098234 (1992-03-01), Judkins et al.
patent: 5464229 (1995-11-01), Salpaka
patent: 5775704 (1998-07-01), Wilson et al.
patent: 5807038 (1998-09-01), Skinner
patent: 5810366 (1998-09-01), Montjoy et al.
patent: 5947484 (1999-09-01), Huggins et al.
patent: 5951024 (1999-09-01), Montjoy et al.
patent: 5997012 (1999-12-01), Brian
patent: 6250866 (2001-06-01), Devine
patent: 6260857 (2001-07-01), Wienhold et al.
patent: 6315060 (2001-11-01), Schuda et al.
patent: 6343901 (2002-02-01), Wheeler et al.
patent: 6357974 (2002-03-01), Robins
patent: 6634444 (2003-10-01), Fuller et al.
patent: 6637987 (2003-10-01), Lui et al.
patent: 170193 (1921-10-01), None
patent: 2263489 (1993-07-01), None
patent: 8-90325 (1996-04-01), None
patent: 9-1413 (1997-01-01), None
patent: 11-123608 (1999-05-01), None
patent: 11-198130 (1999-07-01), None
patent: 2000-198007 (2000-07-01), None
patent: 2002-120218 (2002-04-01), None
MSC Catalogue; Tool Holding—3 pages.

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