Electric heating – Metal heating – By arc
Reexamination Certificate
2006-03-28
2006-03-28
Van, Quang (Department: 3742)
Electric heating
Metal heating
By arc
C219S121500
Reexamination Certificate
active
07019255
ABSTRACT:
A coolant tube and electrode are adapted to mate with each other to align the tube relative to the electrode during operation of the torch. Improved alignment ensures an adequate flow of coolant along an interior surface of the electrode. In one aspect, an elongated body of the coolant tube has a surface adapted to mate with the electrode. In another aspect, an elongated body of the electrode has a surface adapted to mate with the coolant tube. The surfaces of the tube and electrode may, for example, be flanges, tapered surfaces, contours, or steps.
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Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, or the Declaration for International Patent Application No. PCT/US2004/011072, date of mailing Aug. 30, 2004, 12 pages.
Anderson Richard R.
Brandt Aaron D.
Currier Brian J.
Duan Zheng
Jones Casey
Hypertherm, Inc.
Van Quang
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