Electron gun for heating, melting and vaporizing purposes, with

Details Electron gun for heating, melting and vaporizing purposes, with Electron gun for heating, melting and vaporizing purposes, with

1976-04-29

1977-12-06

Envall, Jr., R. N.

Electric heating

Microwave heating

Tunnel furnace

219121EB, H01J 37305

Patent

active

040618714

ABSTRACT:
Electron gun for heating, melting and vaporizing purposes having an electron-emitting cathode, at least one beam-forming electrode associated with the cathode, an accelerating anode, an electromagnetic lens and a beam guiding-tube extending in the direction of the beam path and surrounded by an electromagnetic deflection system for the x-axis deflection and one for the y-axis deflection. An envelope tube is disposed outside of the deflection systems and is joined at its extremity to the end of the beam guiding tube by an end plate through which the pole shoes of the x-axis deflection system are brought. The end plate is inclined towards the cathode beginning from the pole shoes of the x-axis deflection system.

REFERENCES:
patent: 3312858 (1967-04-01), Dietrich
patent: 3360600 (1967-12-01), DuBois
patent: 3379819 (1968-04-01), Houde
patent: 3388235 (1968-06-01), Pinsley et al.
patent: 3652821 (1972-03-01), Dietrich et al.

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