Rugged quick-heating electron tubes

Details Rugged quick-heating electron tubes Rugged quick-heating electron tubes

1955-02-07

1978-08-15

Wilbur, Maynard R.

Electric lamp and discharge devices

Discharging devices with apertured electrode interposed...

313246, 313310, H01J 146, H01J 2110

Patent

active

041075668

ABSTRACT:
1. A rugged combustion-heated electron tube comprising: a metallic conica-shaped anode structure; a metallic conically-shaped cathode structure insulatedly and coaxially mounted in spaced relationship to said anode structure; a metallic conically-shaped grid structure insulatedly and coaxially mounted in spaced relationship between said anode structure and said cathode structure; first and second annular insulating spacer-seals separating said anode structure from said grid structure and said grid structure from said cathode structure, said spacer-seals in combination with said anode structure and said cathode structure providing a hermetically-sealed envelope containing said grid structure; and a combustible material mounted exteriorly of said envelope in proximity to said cathode structure, said combustible material being adapted to heat said cathode structure to an operating temperature.

REFERENCES:
patent: 2121600 (1938-06-01), Knowles et al.
patent: 2391927 (1946-01-01), Segerstrom, Jr.
patent: 2408822 (1946-10-01), Tanis, Jr.
patent: 2424526 (1947-07-01), White

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