Electric heating – Metal heating – By arc
Patent
1991-02-11
1992-02-25
Paschall, Mark H.
Electric heating
Metal heating
By arc
21912154, 21912139, 21912148, 21912159, B23K 900
Patent
active
050916254
ABSTRACT:
A plasma arc workpiece cutting device having means for removing a deposited material deposited onto a nozzle of a plasma torch. During plasma arc cutting operation, molten spatters may be directed toward the plasma torch and may be adhered onto the nozzle. The deposited material is removed by way for removing the deposited material. At every proper intervals, the plasma torch is moved toward the removing structure, and the deposited material is brought into sliding contact therewith in order to frictionally remove the deposited material from the nozzle. A control system is provided for moving the plasma torch at every proper timings so as to perform the deposited material removing operation.
REFERENCES:
patent: 3562842 (1971-02-01), Turnipseed
patent: 4063059 (1973-12-01), Brolund et al.
patent: 4280043 (1981-07-01), Feix et al.
patent: 4702195 (1987-10-01), Thielmann
Kohda Masahiro
Yamada Osamu
Yamane Hisaaki
Brother Kogyo Kabushiki Kaisha
Paschall Mark H.
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