EP 0378338 A2 19900718 - Discharge tube.
Title (en)
Discharge tube.
Title (de)
Entladungsröhre.
Title (fr)
Tube à décharge.
Publication
Application
Priority
JP 575389 A 19890112
Abstract (en)
A discharge tube having a pair of opposite electrode assemblies disposed in a discharge space (6) defined by a peripheral wall and charged with gas, and an a.c. source (11) 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 (2) for emitting electrons and a filament electrode (3) disposed closely adjacent to the sintered metallic electrode (2), for emitting thermoelectrons, and the sintered metallic electrode and the filament electrode being electrically connected in parallel by means of the associated lead wires (8).
IPC 1-7
IPC 8 full level
H01J 61/067 (2006.01)
CPC (source: EP)
H01J 61/067 (2013.01)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0378338 A2 19900718; EP 0378338 A3 19910612; EP 0378338 B1 19970402; DE 69030333 D1 19970507; JP H02186551 A 19900720; JP H0546048 B2 19930712; KR 900012321 A 19900803; KR 920010057 B1 19921113
DOCDB simple family (application)
EP 90300190 A 19900108; DE 69030333 T 19900108; JP 575389 A 19890112; KR 900000297 A 19900111