Electric heating – Metal heating – By arc
Patent
1977-05-10
1978-04-04
Truhe, J. V.
Electric heating
Metal heating
By arc
313337, 313346R, B23K 900
Patent
active
040829383
ABSTRACT:
A thermionic heater cathode assembly for an electron-beam gun, comprising a disc cathode made of a highly-emissive material and disposed near a metal ribbon filament the thermionic portion whereof has a W shape, the distance between two apices of said thermionic portion being 0.6 to 0.8 of the disc cathode diameter and the depth of the valley between the apices constituting 0.5 to 0.6 of said diameter.
REFERENCES:
patent: 3500454 (1970-03-01), Emerick
Fridlender Lev Moiseevich
Kozhaev Arkady Filippovich
Shergov Igor Vladimirovich
Slavinsky Vladimir Danilovich
Zharinov Valery Ivanovich
Bell Fred E.
Truhe J. V.
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