EDM drill

Electric heating – Metal heating – Cutting or disintegrating

Reexamination Certificate

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Reexamination Certificate

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06921877

ABSTRACT:
An EDM drill is provided which includes an automated electrode tube replacing mechanism for fully automated and continuous operation. The EDM drill further includes an electrode tube guide selection device to allow the fully automated and continuous operation on holes of various diameters.

REFERENCES:
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patent: 4563800 (1986-01-01), Bonga
patent: 4739145 (1988-04-01), Check et al.
patent: 4992639 (1991-02-01), Watkins et al.
patent: 5248867 (1993-09-01), Ohba et al.
patent: 5306888 (1994-04-01), Kaneko et al.
patent: 5453933 (1995-09-01), Wright et al.
patent: 6086684 (2000-07-01), Saito et al.
patent: 6127642 (2000-10-01), Gleason et al.
patent: 6396022 (2002-05-01), Suzuki
patent: 7-24649 (1995-01-01), None
patent: 8-290322 (1996-11-01), None
patent: WO-00-23222 (2000-04-01), None

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