Electric lamp and discharge devices: systems – Discharge device load – Discharge drawing-type discharge device
Patent
1988-10-12
1990-11-13
LaRoche, Eugene R.
Electric lamp and discharge devices: systems
Discharge device load
Discharge drawing-type discharge device
315112, 315330, 315335, 313 29, H01J 1708
Patent
active
049704400
ABSTRACT:
An orientation independent ignitron (OII) has an anode, a cathode with a plurality of spaced grooves facing the anode, and a cooling mechanism which causes liquid metal vapor to condense as a film which is retained on the grooved cathode surface by surface tension and forms reservoirs within the grooves. The cathode and anode are preferably cylindrical and coaxial, with the inner surface of the cathode having parallel annular grooves facing the outer anode surface. Igniters are preferably introduced into convex areas between adjacent grooves along radial lines, with individual igniters providing ignition for a pair of adjacent grooves. The igniters can be operated simultaneously or in sequence, depending upon the desired repetition rate and current capacity. A liquid metal film is initially formed by placing the OII on its side, introducing liquid metal into the lower ends of the grooves, and causing arcing between the anode and liquid metal to flow the liquid metal and wet the adjacent groove surface. Some of the liquid metal also evaporates and re-condenses on other portions of the cathode, establishing a continuous film.
REFERENCES:
patent: 1847646 (1932-03-01), Gaudenzi
patent: 2907905 (1959-10-01), Humphrey
patent: 3475636 (1969-10-01), Eckhardt
patent: 3659132 (1972-04-01), Eckhardt
patent: 4093888 (1978-06-01), Eckhardt et al.
patent: 4264839 (1981-04-01), Bayless
H. E. Gallagher et al., "Repetition Rate Extension of the Orientation Independent Ignitron", Digest of Technical Papers, 4th IEEE Pulsed Conference, Jun. 1983.
Eckhardt Wilfried O.
Fleig Roland G.
Gallagher Hayden E.
Coble P. M.
Denson-Low W. K.
Duraiswamy V. D.
Hughes Aircraft Company
LaRoche Eugene R.
LandOfFree
Orientation independent ignitron with grooved cathode does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Orientation independent ignitron with grooved cathode, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Orientation independent ignitron with grooved cathode will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-778864