Thermionic cathode apparatus

Details Thermionic cathode apparatus Thermionic cathode apparatus

1979-11-06

1981-09-08

Chatmon, Jr., Saxfield

Electric lamp and discharge devices

Electrode and shield structures

Point source cathodes

313311, 313346R, H01J 116, H01J 1910

Patent

active

042887178

ABSTRACT:
A thermionic cathode includes an electron emitting tip, lanthanum hexaboride tip supporting heaters in close contact with both sides of the tip and supporting the tip, and elastic electroconductive members in pressure contact with outer surfaces of the tip supporting heaters for supplying electric current. The tip supporting heaters are obtained by cutting lanthanum hexaboride having high anisotropy due to its layered structure so as to form a pair of parallel planes perpendicular to a pressing direction when hot-pressed, and abrade-polishing the parallel planes. The tip supporting heaters are brought into close contact with the tip and the elastic electroconductive members at the resulting smooth surfaces thereof. The apparatus of the invention has a prolonged lifetime and high efficiency.

REFERENCES:
patent: 3532923 (1970-10-01), Vogel
patent: 3631291 (1969-04-01), Faureau
patent: 3928783 (1975-12-01), Hosoki et al.
patent: 4068145 (1978-01-01), Nakagawa et al.
patent: 4137476 (1979-01-01), Ishii et al.
patent: 4193013 (1980-03-01), Futamoto et al.

Affiliated with

Also associated with

Rating

Thermionic cathode apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermionic cathode apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermionic cathode apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1194440