Device for clamping tools

Details Device for clamping tools Device for clamping tools

2006-01-31

2006-01-31

Howell, Daniel W. (Department: 3722)

Gear cutting, milling, or planing

Milling

With cutter holder

C279S102000, C029S447000, C219S635000, C219S674000

Reexamination Certificate

active

06991411

ABSTRACT:
The invention is concerned with a device for clamping and releasing work tools (16) in a tool receptacle (10). The tool receptacle (10) includes on its free end for this purpose an open socket part (12), which is adapted for frictional engaging reception of the work tool shaft (14). The work tool shaft is thereby shrunk-fit into a borehole (20) in the socket part (12). For this purpose the socket part is provided with an induction coil (26) encircling the tool receptacle (10) which coil can be acted upon by high frequency alternating current for producing heat and heating the socket part (12). For avoidance of leakage fields which could result in a undesired heating of the work tool (16), it is proposed in accordance with the invention that the induction coil (26), on its surface adjacent the free end of the socket part (12), is covered over by a pole shoe (34) having a central through hole (36) for the work tool (16) and comprised of a magnetically conductive and electrically non-conductive material.

REFERENCES:
patent: 5041806 (1991-08-01), Enderle et al.
patent: 5311654 (1994-05-01), Cook
patent: 6060694 (2000-05-01), Hauser
patent: 6216335 (2001-04-01), Freyermuth
patent: 6680466 (2004-01-01), Rabe
patent: 6712367 (2004-03-01), Irion et al.
patent: 6755228 (2004-06-01), Kelch
patent: 6822206 (2004-11-01), Haimer
patent: 2003/0168445 (2003-09-01), Haimer
patent: 29 334 (1904-08-01), None
patent: 96 427 (1978-03-01), None
patent: 39 25 641 (1989-03-01), None
patent: 297 05 185 (1997-03-01), None
patent: 298 20 838 (1998-11-01), None
patent: 10218292 (2003-11-01), None
patent: 10255362 (2004-03-01), None
patent: 0 406 782 (1991-01-01), None
patent: 1314511 (2002-11-01), None
patent: 1524221 (1968-04-01), None
patent: 2001-18128 (2001-01-01), None
Request for cancellation of German derivation 200 08 675 of PCT/EP00/02123 (and cited documents).
Induktive Erwärmung,Physikalische Grundlagen und technische Anwendungen, 4. vollstandig überarbeitete Auflage 1991.
Shrinker Tooling Innovations, A True Breakthrough in Toolholding Technology,Dec. 1996.
Production and Concentration of Magnetic Flux for More Efficient Induction Heating Applications,R.S. Ruffini and Robert J. Madiera, Industrial Heating, Feb. 1989.
Materials for Effective Magnetic Flux Control and Concentration in Induction Heating Processes,R.S. Ruffini et al., Industrial Heating, Nov. 1996.
Production and Concentration of Magnetic Flux for Induction(Eddy Current)Heating Applications,R.S. Ruffini, Industrial Heating, Nov. 1994.
Essay of Martin Eastman“Shrink-Fit Toolholding”, Zeitschrift Cutting Tool Engineering, Apr. 1997, Seiten 76 bis 83.
Magnetic Flux Concentrators: Myths, Realties, and Profits,Dr. Valery Rudnev et al, Metal Heat Treating, Mar./Apr. 1995.
Taschenbuch der Hochfrequenztechnik,H. Meinke et al, Dritte verbesserte Auflage, 1968.
Soviet Inventions Illustrated, Section P, Q: General/Mechanical, Derwent Publications Ltd, UK 1983.
Opposition again European Patent 1 165 284.
Infringement suit against the firm GEWEFA Josef C. Pfister GmbH & Co. Präzisionswerkzeugfabrik with cited documents.

Affiliated with

Also associated with

Rating

Device for clamping 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 Device for clamping tools, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for clamping tools will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3564595