Electric heating – Metal heating – By arc
Reexamination Certificate
2007-03-12
2010-02-09
Paschall, Mark H (Department: 3742)
Electric heating
Metal heating
By arc
C219S121430, C219S121480, C118S7230IR, C118S7230MW, C315S111510
Reexamination Certificate
active
07659489
ABSTRACT:
Plasma ignition and cooling apparatus and methods for plasma systems are described. An apparatus can include a vessel and at least one ignition electrode adjacent to the vessel. A total length of a dimension of the at least one ignition electrode is greater than 10% of a length of the vessel's channel. The apparatus can include a dielectric toroidal vessel, a heat sink having multiple segments urged toward the vessel by a spring-loaded mechanism, and a thermal interface between the vessel and the heat sink. A method can include providing a gas having a flow rate and a pressure and directing a portion of the flow rate of the gas into a vessel channel. The gas is ignited in the channel while the remaining portion of the flow rate is directed away from the channel.
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Communication Relating to the Results of the Partial International Search for International Patent Application No. PCT/US04/011183, date of mailing Oct. 13, 2004, 11 pages.
Besen Matthew M.
Chen Xing
Collins, Jr. Ronald W.
Cowe Andrew B.
Holber William M.
MKS Instruments Inc.
Paschall Mark H
Proskauer Rose LLP
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