Basket electrode shaping

Details Basket electrode shaping Basket electrode shaping

1986-06-18

1988-11-01

Rowan, Kurt

Electric lamp or space discharge component or device manufacturi

Process

Electrode making

445 35, 445 49, H01J 902

Patent

active

047816406

ABSTRACT:
The invention is a method of manufacture of a cylndrical electrode such as a thermionic cathode comprising an array of helical filaments. The method comprises the step of placing the array, attached to its support electrodes which are fixedly mounted to a common subassembly support, inside a close-fitting refractory dielectric cylinder and heating the filament assembly by passing current through the filaments. The filament assembly expands to contact the form. On further heating it is plastically deformed to form a perfect cylindrical shape. After cooling and shrinking, it is removed from the form.

REFERENCES:
patent: 1870968 (1932-08-01), Sinden
patent: 2269081 (1942-01-01), Felsner
patent: 2723926 (1955-11-01), Bellott
patent: 2882436 (1959-04-01), Porgelo
patent: 3045320 (1962-07-01), Apelbaum
patent: 3172002 (1965-03-01), Johnson
patent: 3201849 (1965-08-01), Voss
patent: 3216085 (1965-11-01), Thon
patent: 3249791 (1966-05-01), Kendall
patent: 3544832 (1970-12-01), Brous
patent: 3567989 (1971-03-01), Koshizuka
patent: 3758808 (1973-09-01), Held
patent: 3800378 (1974-04-01), Lee
patent: 3823453 (1974-07-01), Van Stratum
patent: 4144473 (1979-03-01), Almer
patent: 4277713 (1981-07-01), Hasker
patent: 4443735 (1984-04-01), Alexandrov

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