Electric heating – Metal heating – By arc
Reexamination Certificate
2005-09-13
2005-09-13
Hoang, Tu (Department: 3742)
Electric heating
Metal heating
By arc
C219S121590
Reexamination Certificate
active
06943317
ABSTRACT:
There is provided by this invention a novel apparatus and method of operating a dc plasma process that diverts the power supply current from the plasma at the initiation of an arc, thereby inhibiting energy from flowing from the power supply to the plasma, and then to allow energy to flow again when the power supply re-enables energy flow to the plasma. The diverting means is connected to the output of the power supply to divert current away from the plasma at the initiation of an arc wherein the diverting means is actuated when the arc is detected on the output and diverts the current for a first pre-determined time. The diverting means is released at the end of the first pre-determined time before the current reaches zero wherein current is redirected to the plasma and the diverting means is reactivated at the end of a second pre-determined time in the event the arc is not extinguished.
REFERENCES:
patent: 5192894 (1993-03-01), Teschner
patent: 5241152 (1993-08-01), Anderson et al.
patent: 5286360 (1994-02-01), Szczyrbowski et al.
patent: 5303139 (1994-04-01), Mark
patent: 5535906 (1996-07-01), Drummond
patent: 5645698 (1997-07-01), Okano
patent: 5718813 (1998-02-01), Drummond et al.
patent: 5917286 (1999-06-01), Scholl et al.
patent: 5990668 (1999-11-01), Coleman
patent: 6222321 (2001-04-01), Scholl et al.
patent: 6524455 (2003-02-01), Sellers
patent: 6552296 (2003-04-01), Smith et al.
patent: 6621674 (2003-09-01), Zahringer et al.
patent: 61030655 (1986-02-01), None
Ilic Milan
Malinin Andrey B.
Siddabattula Kalyan N. C.
Advanced Energy Industries Inc.
Hoang Tu
Hudson, Jr. Benjamin
Pirnot John D.
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