Cutting by use of rotating axially moving tool – Processes – Bit detachable
Reexamination Certificate
2005-04-12
2005-04-12
Howell, Daniel W. (Department: 3722)
Cutting by use of rotating axially moving tool
Processes
Bit detachable
C409S200000, C409S201000, C409S231000, C082S001400, C408S236000
Reexamination Certificate
active
06877936
ABSTRACT:
A method and apparatus for producing conical holes in a workpiece by using a substantially cylindrical cutting tool having a cutting head diameter essentially smaller than the top and bottom diameter of the hole to be formed. The method comprises the steps of positioning the longitudinal center axis of the cutting tool at an angle, which is offset from a normal to a flat surface of the workpiece such that the inclination of the longitudinal axis of the cutting tool substantially corresponds to the desired inclination of the wall of the conical hole to be formed, rotating the cutting tool about its longitudinal center axis, moving the cutting tool in a circular path about a principal axis corresponding to the longitudinal center axis of the hole to be machined, and feeding the cutting tool in its longitudinal direction towards and into the workpiece.
REFERENCES:
patent: 1634322 (1927-07-01), Dornes, Jr.
patent: 1989227 (1935-01-01), Craley
patent: 2499842 (1950-03-01), Armitage
patent: 2519476 (1950-08-01), Kind
patent: 3690220 (1972-09-01), Escobedo
patent: 4245939 (1981-01-01), Sear
patent: 4370080 (1983-01-01), Goode
patent: 4487275 (1984-12-01), Froehlich
patent: 4508476 (1985-04-01), Kalokhe
patent: 5462393 (1995-10-01), Eischeid
patent: 5664308 (1997-09-01), Deitert
patent: 5769576 (1998-06-01), Gerard et al.
patent: 5829928 (1998-11-01), Harmand et al.
patent: 5971678 (1999-10-01), Linderholm
patent: 20010022122 (2001-09-01), Kawai et al.
patent: 61-152304 (1986-07-01), None
patent: 07148604 (1995-06-01), None
patent: 0891260 (1981-12-01), None
patent: WO 03006196 (2003-01-01), None
Linderholm Dag G.
Pettersson Bjorn
Howell Daniel W.
Novator AB
Taylor & Aust P.C.
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