Modular drill

Details Modular drill Modular drill

2007-12-18

2007-12-18

Fridie, Jr., Willmon (Department: 3722)

Cutting by use of rotating axially moving tool

Tool or tool with support

Having peripherally spaced cutting edges

Reexamination Certificate

active

10958227

ABSTRACT:
A drill having a replaceable cutting head, modified to eliminate forces which would distort the pocket of the drill shank and otherwise concentrate stresses which would cause failure of the drill. The cutting head has a frustoconical depending connecting member received in a receptacle formed in the shank. In different embodiments, contact between the pocket formed in the shank and the cutting head connecting member is limited. In one embodiment, angle of drive surfaces is modified from prior art practice. In another embodiment, transition of at curved joints between vertical and horizontal surfaces is made more gradual. The drill preferably has flutes formed collectively by the shank and cutting head when assembled.

REFERENCES:
patent: 932071 (1909-08-01), Urbscheit
patent: 1461548 (1923-07-01), West
patent: 2158120 (1939-05-01), Hirschberg
patent: 2294969 (1942-09-01), Engvall et al.
patent: 3153356 (1964-10-01), Dearborn
patent: 3293727 (1966-12-01), Simms
patent: 3359837 (1967-12-01), Andreasson
patent: 4293253 (1981-10-01), Ott
patent: 4561812 (1985-12-01), Linden
patent: 5024563 (1991-06-01), Randall
patent: 5114286 (1992-05-01), Calkins
patent: 5154549 (1992-10-01), Isobe et al.
patent: 5154550 (1992-10-01), Isobe et al.
patent: 5228812 (1993-07-01), Noguchi et al.
patent: 5649794 (1997-07-01), Kress et al.
patent: 5685671 (1997-11-01), Packer et al.
patent: 5863162 (1999-01-01), Karlsson et al.
patent: 5904455 (1999-05-01), Krenzer et al.
patent: 5957631 (1999-09-01), Hecht
patent: 5971673 (1999-10-01), Berglund et al.
patent: 5980166 (1999-11-01), Ogura
patent: 5988953 (1999-11-01), Berglund et al.
patent: 6012881 (2000-01-01), Scheer
patent: 6059492 (2000-05-01), Hecht
patent: 6071045 (2000-06-01), Janness
patent: 6109841 (2000-08-01), Johne
patent: 6276879 (2001-08-01), Hecht
patent: 6481938 (2002-11-01), Widin
patent: 6485235 (2002-11-01), Mast et al.
patent: 6506003 (2003-01-01), Erickson
patent: 6514019 (2003-02-01), Schulz
patent: 6551035 (2003-04-01), Bruhn et al.
patent: 6582164 (2003-06-01), McCormick
patent: 6899495 (2005-05-01), Hansson et al.
patent: 2002/0159851 (2002-10-01), Krenzer
patent: 2003/0039523 (2003-02-01), Kemmer
patent: 94 340 (1896-09-01), None
patent: 524 677 (1931-04-01), None
patent: 2 246 965 (1974-04-01), None
patent: 199 45 097 (2001-03-01), None
patent: 100 54 850 (2002-05-01), None
patent: 0 118 806 (1984-09-01), None
patent: 0 441 302 (1991-08-01), None
patent: 0 441 302 (1991-08-01), None
patent: 0 460 237 (1991-12-01), None
patent: 907 980 (1944-05-01), None
patent: 1 395 855 (1975-05-01), None
patent: 2 010 708 (1979-07-01), None

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