Turning – Lathe – Work rest
Reexamination Certificate
2006-05-02
2006-05-02
Howell, Daniel W. (Department: 3722)
Turning
Lathe
Work rest
C279S043000, C279S050000, C279S046300
Reexamination Certificate
active
07036409
ABSTRACT:
In a spindle assembly for machine tools, the axial length λ of the collar of a spring collet is determined as a function of the axial course length c of a clamping sleeve operating spring collet. This axial length λ is preferably retained within an interval ranging between 3 mm and 9 mm. A tapering surface of the collar presents an inclined profile, which is straight, curved, or at least partially curved. The angle of inclination formed by the tapering surface with the axis of the spring collet is advantageously of the order of 45°. The spring collet has at least two grooves. The gap between these grooves may be determined in such a way that, when the spring collet is in the closed position, then the workpiece is gripped with a predetermined clamping force, and the two mutually opposing faces of each groove portion abut against each other.
REFERENCES:
patent: 232311 (1880-09-01), Starr
patent: 2438797 (1948-03-01), Bagge
patent: 2475519 (1949-07-01), Robichaud
patent: 2550036 (1951-04-01), Bechler
patent: 3121572 (1964-02-01), Torok
patent: 3874688 (1975-04-01), Schiller
patent: 6508475 (2003-01-01), Strodtman et al.
patent: 434 583 (1926-09-01), None
patent: 974 660 (1949-07-01), None
patent: 3006476 (1981-09-01), None
patent: 3630808 (1988-03-01), None
patent: 1019344 (1953-01-01), None
patent: 01-11701 (1989-01-01), None
patent: 4-53606 (1992-02-01), None
patent: 8-229714 (1996-09-01), None
patent: 2000-158216 (2000-06-01), None
patent: 2001-322014 (2001-11-01), None
Frishauf Holtz Goodman & Chick P.C.
Howell Daniel W.
Walter Dunner S.A.
LandOfFree
Spring collet for machine tools does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Spring collet for machine tools, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spring collet for machine tools will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3652442