Electric heating – Metal heating – By arc
Reexamination Certificate
2006-07-21
2010-11-23
Paschall, Mark H (Department: 3742)
Electric heating
Metal heating
By arc
C219S121520, C219S121430, C315S111510, C118S7230AN
Reexamination Certificate
active
07838793
ABSTRACT:
A system (10) for coating surfaces of a workpiece (12) comprises a biasing system (242) for connection to said workpiece (12) and an anode (76) such as to negatively bias the workpiece relative to the anode and a vacuum source (42, 44) for evacuating an interior of the workpiece (12). A gas supply (224, 226, 228) is employed for introducing a gas containing a treatment material to said workpiece and a control system (244) controls the biasing system (242), the vacuum source (42, 44) and the gas supply (224, 226, 228) so as to establish a hollow cathode effect within the workpiece (12). A pair of coupling heads (16, 18) are supported on articulated arms (22, 24, 26) movable in one or more of three axes and include removable shields (78) to protect the heads (16, 18) and an anode mount (74) for receiving an anode (76). The articulated arms allow the system to accommodate a plurality of different shaped and different sized workpieces while the shields protect the coupling heads during a deposition process.
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Boardman William John
Casserly Thomas Bryan
Contreras Frederick
Mercado Raul Donate
Tudhope Andrew William
Paschall Mark H
Schneck & Schneck
Sub-One Technology, Inc.
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