Valve for an electron bombardment welding machine and machine fi

Details Valve for an electron bombardment welding machine and machine fi Valve for an electron bombardment welding machine and machine fi

1976-08-09

1978-01-10

Truhe, J. V.

Electric heating

Metal heating

By arc

251 31, 251 63, B23K 1500

Patent

active

040681122

ABSTRACT:
A valve which preserves the vacuum between a gun and a welding enclosure in an electron-bombardment.
The valve contains a chamber which communicates with the gun and the enclosure via opposing orifices, with a sliding piston provided with a passage coming into line with the orifices when the valve is in the open, or welding position, the piston being actuated by means employing fluid.
The invention is applicable to electron-bombardment welding machines and in particular to machines fitted with visual means for inspecting the parts to be welded.

REFERENCES:
patent: 3150257 (1964-09-01), Wilska
patent: 3169183 (1965-02-01), Radkte et al.
patent: 3426799 (1969-02-01), Kintner
patent: 3454740 (1969-07-01), Foulquier et al.
patent: 3529123 (1970-09-01), Hinrichs
patent: 3635436 (1972-01-01), Tillman
patent: 3773082 (1973-11-01), Davis
patent: 3887784 (1975-06-01), Alais et al.
patent: 3890991 (1975-06-01), Grove et al.
patent: 3985154 (1976-10-01), Hargraves

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