Thermionic cathodes and methods of making
United States Patent 2996795
US Patent References:
/1075782.html
- - 1075782

/1221769.html
- - 1221769

Electron emissive electrode
- - 2103033

Cathode for electron discharge devices
- - 2144249

Thermionic tube
- - 2149657


Inventors:
Stout, Virgil L.
Publication Date:
08/22/1961
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Assignee:
GEN ELECTRIC
Primary Class:
428/545
Other Classes:
428/632, 428/539.500, 428/656, 313/346DC, 428/678, 419/19, 428/553
International Classes:
C23C28/00; H01J1/14; H01J9/04; H01J1/13
US Patent References:
2172207Glow cathode
2179110Cathode for electron discharge devices
2339392Cathode
2417730Electron tube and method of making same
2472189Thermionic tube having a secondary-emission electrode
2497496Electrode structure for electric discharge devices or lamps
2557372Manufacture of thoria cathodes
2674542Method for producing hard surfaced titanium
2719355Carbonized metal and method of making it
2775531Method of coating a metal surface
Foreign References:
GB700606A