Chuck device for electrical discharge machine

Details Chuck device for electrical discharge machine Chuck device for electrical discharge machine

2006-03-07

2009-10-20

Hoang, Tu B (Department: 3742)

Industrial electric heating furnaces

Arc furnace device

Electrode

C279S004060, C279S004040, C279S020000, C279S075000, C279S905000, C219S069150

Reexamination Certificate

active

07606285

ABSTRACT:
A chuck device for electrical discharge machine includes a mold fixed to the machine and a connector connected to the discharge head. The connector has a connection rod having a neck and the connection rod is connected to the mold. A plurality of protrusions extend from the top of the connector and each protrusion has a groove which is defined by two facing inclined surfaces. The mold has a plurality of positioning bars fixed to an underside thereof and each positioning bar has a taper-shaped body with two inclined sides. The positioning bars are engaged with the grooves and the two inclined sides of the positioning bar are in contact with the inclined surfaces of the groove. A distance is defined between the flanges and a top of the protrusion.

REFERENCES:
patent: 3943778 (1976-03-01), Wyse
patent: 5791803 (1998-08-01), Nordquist
patent: 5906378 (1999-05-01), Nordquist
patent: 6160236 (2000-12-01), Nordquist
patent: 6642469 (2003-11-01), Dobovsek et al.
patent: 2006/0014423 (2006-01-01), Fan
patent: 2001245529 (2001-09-01), None

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