Electric heating – Metal heating – By arc
Reexamination Certificate
2005-05-24
2005-05-24
Paschall, Mark (Department: 3742)
Electric heating
Metal heating
By arc
C219S121520, C219S121480, C219S075000
Reexamination Certificate
active
06897402
ABSTRACT:
The invention recites a plasma-arc spray gun comprising a cathode and an anode defining a longitudinal axis. The anode further includes an external surface and an internal chamber, the internal chamber extending from a first end to a second end. At least a portion of the internal chamber is defined by revolving a non-linear curve about the longitudinal axis. The plasma-arc spray gun also includes a gun body supporting the cathode and the anode.
REFERENCES:
patent: 3914573 (1975-10-01), Muehlberger
patent: 4626648 (1986-12-01), Browning
patent: 5132511 (1992-07-01), Labrot et al.
patent: 5164568 (1992-11-01), Sanders
patent: 5444209 (1995-08-01), Crawmer et al.
Michael & Best & Friedrich LLP
Paschall Mark
Thermal Spray Technologies, Inc.
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