Thyratrons

Details Thyratrons Thyratrons

1983-07-29

1986-03-18

Kellogg, Arthur

Electric lamp and discharge devices

With gas or vapor

Three or more electrode discharge device

313597, 313449, 313590, H01J 1730

Patent

active

045771383

ABSTRACT:
Thyratrons have an anode and cathode with a control grid lying between them. A primary grid located between the control grid and cathode may be used to maintain a primary discharge between it and the cathode, and improve the operating characteristics of the thyratron. However, the primary discharge may penetrate into the region where the main discharge occurs and hence increase the probability of premature triggering of the thyratron.
By employing the invention, the penetration of the primary discharge into the main discharge region is reduced.
A primary grid comprises two elements which have apertures. The elements are arranged so that the apertures in one element do not overlap those in the other. Thus the primary discharge which penetrates through the first element is prevented from reaching the main discharge region by the second element.

REFERENCES:
patent: 1272621 (1918-07-01), Chubb
patent: 2072637 (1937-03-01), Jobst
patent: 2653261 (1953-09-01), Watrous, Jr.

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