Electric heating – Metal heating – By arc
Patent
1998-10-28
2000-09-19
Walberg, Teresa
Electric heating
Metal heating
By arc
21912144, B23K 900
Patent
active
061215708
ABSTRACT:
A plasma arc torch system having automatic purge and fill capability includes a plasma arc torch which has a supply line coupled with a passage in the torch for supplying a process fluid through the torch to a nozzle of the torch. The system further includes a process fluid supply system including at least first and second supplies containing first and second process fluids, respectively, and a purge gas supply containing an inert purge gas. A valve system is coupled between the process fluid supply system and the supply line and between the purge gas supply and the supply line, the valve system including at least one valve operable to selectively couple the supply line to one of the first, second, and purge supplies. An actuator system is connected to the valve system, the actuator system being electrically activatable to cause the valve system to couple the supply line to one of the supplies. To enable automatic purge and fill operations, the system includes a control system including a programmable controller electrically connected to the actuator system, and an electronic data storage device in data communication with the controller, the data storage device containing at least one set of process requirements including a process fluid requirement. The controller is programmed to read the set of process requirements from the data storage device and to control operation of the actuator system so as to automatically couple the supply line with the first or second supply in accordance with the process fluid requirement.
REFERENCES:
patent: 3474823 (1969-10-01), Finlayson et al.
patent: 3988566 (1976-10-01), Vogts et al.
patent: 4163891 (1979-08-01), Komatsu et al.
patent: 4211251 (1980-07-01), Rickert et al.
patent: 4902866 (1990-02-01), Galantino
patent: 4906582 (1990-03-01), Fukui et al.
patent: 5017752 (1991-05-01), Severense, Jr. et al.
patent: 5070227 (1991-12-01), Luo et al.
patent: 5290995 (1994-03-01), Higgins et al.
patent: 5302799 (1994-04-01), Kennedy et al.
patent: 5414237 (1995-05-01), Carkhuff
patent: 5844195 (1998-12-01), Fairbairn et al.
Oakley Thomas Franklin
Turner Barry Gaskins
The ESAB Group, Inc.
Van Quang
Walberg Teresa
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