Electric heating – Metal heating – Cutting or disintegrating
Reexamination Certificate
2007-05-08
2007-05-08
Evans, Geoffrey S. (Department: 1725)
Electric heating
Metal heating
Cutting or disintegrating
C219S069150, C219S069200
Reexamination Certificate
active
11333428
ABSTRACT:
An electrical discharge machine includes first and second coaxial electrodes and corresponding carriages. A liquid dielectric is channeled between the electrodes and a workpiece which are suitably electrically powered for machining a duplex hole in the workpiece.
REFERENCES:
patent: 4197443 (1980-04-01), Sidenstick
patent: 4476369 (1984-10-01), Inoue
patent: 4705932 (1987-11-01), Aso et al.
patent: 4762464 (1988-08-01), Vertz et al.
patent: 4804814 (1989-02-01), Southerland et al.
patent: 5019683 (1991-05-01), Abdukarimov et al.
patent: 5893984 (1999-04-01), Thompson
patent: 6127642 (2000-10-01), Gleason et al.
patent: 6354797 (2002-03-01), Heyward et al.
patent: 6373018 (2002-04-01), Wei et al.
patent: 6759621 (2004-07-01), Varin
patent: 7015411 (2006-03-01), Meister et al.
patent: 7041933 (2006-05-01), Forrester et al.
patent: 2004/0200807 (2004-10-01), Forrester et al.
patent: 63-28525 (1988-02-01), None
patent: 3-86429 (1991-04-01), None
patent: 2001-170820 (2001-06-01), None
patent: WO-86/00840 (1986-02-01), None
CurrentEDM.com, “EDM Drill Models,” wwww, Dec. 2, 2005, 4 pages.
Ball Glenn Edward
Gleason Mark Joseph
Webb Barry Joe
Conte Francis L.
Cummings Theodore P.
Evans Geoffrey S.
General Electric Company
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