Discharge tube

Details Discharge tube Discharge tube

1993-01-08

1994-01-11

O'Shea, Sandra L.

Electric lamp and discharge devices

With gas or vapor

Having particular electrode structure

313628, 313601, H01J 1704, H01J 6106

Patent

active

052784746

ABSTRACT:
A discharge tube having a pair of opposite electrode assemblies disposed in a discharge space defined by a peripheral wall and charged with gas, and an a.c. source connected at one end to one of the pair of electrode assemblies and at the other end to the other of the electrode assemblies, each of said opposite electrode assemblies comprising a sintered metallic electrode for emitting electrons and a filament electrode disposed closely adjacent to the sintered metallic electrode, for emitting thermoelectrons, and the sintered metallic electrode and the filament electrode being electrically connected in parallel by means of the associated lead wires.

REFERENCES:
patent: 2046941 (1936-07-01), Gaidies
patent: 2187774 (1940-01-01), Francis
patent: 2314134 (1943-03-01), Eknayan
patent: 2364889 (1944-12-01), Blair
patent: 2562887 (1951-08-01), Beese
patent: 3548242 (1970-12-01), Ayotte et al.
patent: 3670195 (1972-06-01), Kamegaya
patent: 4968916 (1990-11-01), Davenport et al.
Patent Abstracts of Japan, vol. 6, No. 123 (E-117), Jul. 8, 1982, p. 1001, & JP-A-57 50 760 (Matsushita).
International Search Report for International Patent Application Serial No. PCT/US91/03233 (see attached Search Report).

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