Electric lamp and discharge devices – With temperature modifier – For electrode within an envelope
Patent
1987-11-16
1989-12-19
Yusko, Donald J.
Electric lamp and discharge devices
With temperature modifier
For electrode within an envelope
31323101, 313595, 313597, 313598, 313599, H01J 146
Patent
active
048885185
ABSTRACT:
A structure associated with a ceramic envelope gas filled electron tube whereby a series of concentric holes are formed through grid radiator rings which thus simulates the outer neutral gas region of a typical glass envelope tube structure. In this manner, one has created a neutral non-ionized gas flow path which shunts the main discharge in such a thyratron and which is contained within the metal internal axial structure. The apertures, as formed in the grid radiator rings, thereby provide a source path for neutral molecular hydrogen from the gas reservoir located at the base of the tube to allow the gas to be directed to the anode/grid region of the tube, where electrons are pumped and the gas is collisionally ionized. The effect serves to enhance the maximum thyratron operating frequency by allowing cool neutral gas molecules to flow into the gap region through the parallel path and then into the discharge volume of the ceramic thyratron tube. Thus, the use of such structure provides an increased maximum conduction current rating and, therefore, a greater switching capability for a ceramic gas filled tube.
REFERENCES:
patent: 2479529 (1949-08-01), Watrous, Jr. et al.
patent: 2951960 (1960-09-01), Watrous, Jr.
patent: 3885183 (1975-05-01), Menown et al.
patent: 4577138 (1986-03-01), Menown et al.
patent: 4703226 (1987-10-01), Menown
Horabik Michael
ITT Corporation
Twomey Thomas N.
Werner Mary C.
Yusko Donald J.
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