Gear cutting – milling – or planing – Milling – Thread or helix generating
Reexamination Certificate
2008-05-27
2008-05-27
Ross, Dana (Department: 3722)
Gear cutting, milling, or planing
Milling
Thread or helix generating
C409S066000, C407S054000, C407S024000
Reexamination Certificate
active
07377732
ABSTRACT:
A thread mill that is to be moved along a helical interpolation path while being rotated about an axis of the thread mill in a rotating direction, for forming a thread in a circumferential surface of a workpiece. The thread mill includes a cylindrical main body having (a) at least one spiral flute formed in an outer circumferential surface of the cylindrical main body, and (b) at least one cutting edge each provided by a rear-side one of widthwise opposite edges, as viewed in the rotating direction, of a corresponding one of the at least one spiral flute. Each of the at least one spiral flute extends in a direction opposite to the rotating direction as viewed in a direction away from a proximal end of the cylindrical main body toward a distal end of the cylindrical main body. Also disclosed is a method of forming the thread by using the thread mill.
REFERENCES:
patent: 3251080 (1966-05-01), Sharon
patent: 3645642 (1972-02-01), Koslow
patent: 4227837 (1980-10-01), Yodoshi
patent: 4395167 (1983-07-01), Maternus
patent: 4651374 (1987-03-01), Turchan
patent: 4655650 (1987-04-01), Crawford et al.
patent: 4765782 (1988-08-01), Ohkita
patent: 4810136 (1989-03-01), Paige
patent: 4831674 (1989-05-01), Bergström et al.
patent: 4943191 (1990-07-01), Schmitt
patent: 5143490 (1992-09-01), Kopras
patent: 5226760 (1993-07-01), Nishimura
patent: 5323823 (1994-06-01), Kopras
patent: 5413438 (1995-05-01), Turchan
patent: 5429459 (1995-07-01), Palm
patent: 5733078 (1998-03-01), Matsushita et al.
patent: 6000887 (1999-12-01), Hoefler et al.
patent: 6012882 (2000-01-01), Turchan
patent: 6345941 (2002-02-01), Fang et al.
patent: 6443674 (2002-09-01), Jaconi
patent: 6742968 (2004-06-01), Volokh
patent: 6758639 (2004-07-01), Risen, Jr.
patent: 6899494 (2005-05-01), Walrath
patent: 7001113 (2006-02-01), Flynn et al.
patent: 7134811 (2006-11-01), Francis et al.
patent: 7207752 (2007-04-01), Schulte
patent: 2002/0168236 (2002-11-01), Slaughter
patent: 2003/0231934 (2003-12-01), Kienzle
patent: 2004/0170482 (2004-09-01), Henderer et al.
patent: 2005/0271486 (2005-12-01), Henderer et al.
patent: A 63-200916 (1988-08-01), None
Andoh Haruyasu
Nakajima Takayuki
Oliff & Berridg,e PLC
OSG Corporation
Ross Dana
LandOfFree
Thread mill having flute twisting in direction opposite to... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thread mill having flute twisting in direction opposite to..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thread mill having flute twisting in direction opposite to... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2781261