EP 0471006 A4 19911217 - GAS TUBE FAIL SAFE DEVICE FOR TELEPHONE PROTECTOR MODULES.
Title (en)
GAS TUBE FAIL SAFE DEVICE FOR TELEPHONE PROTECTOR MODULES.
Title (de)
BETRIEBSSICHERE GASROHRVORRICHTUNG FÜR SCHUTZMODULE FÜR FERNSPRECHANLAGEN.
Title (fr)
DISPOSITIF DE TUBE A GAZ A SECURITE INTEGREE DESTINE AUX MODULES DE PROTECTION DE TELEPHONES.
Publication
Application
Priority
- US 9002348 W 19900427
- US 47842490 A 19900212
- US 34544689 A 19890501
Abstract (en)
[origin: WO9013904A1] A gas tube fail safe device for elongated three element gas tubes having a centrally disposed electrode and a pair of end electrodes. The device includes an elongated planar body (21) having bent up end edges (26-27) forming end electrical contact terminal insulation sleeves (30-31) forming fusible elements. Centrally disposed tabs (33-34) resiliently engage a pin carried by the center electrode of the gas tube. In a second embodiment, a pair of shorting plates (50-51) overlie an air gap insulative member (60) having lines of small orifices (66) which provide air gaps through which excess voltage surges may arc to provide a backup function equivalent to that of the gas tube.
IPC 1-7
IPC 8 full level
H01T 1/14 (2006.01)
CPC (source: EP)
H01T 1/14 (2013.01)
Citation (search report)
- [Y] US 4649456 A 19870310 - DE LUCA PAUL V [US], et al
- [Y] FR 2622047 A1 19890421 - TUBES LAMPES ELECTRIQ CIE INDL [FR]
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI SE
DOCDB simple family (publication)
WO 9013904 A1 19901115; AT E124814 T1 19950715; DE 69020735 D1 19950810; EP 0471006 A1 19920219; EP 0471006 A4 19911217; EP 0471006 B1 19950705; ES 2074572 T3 19950916; MX 172972 B 19940126
DOCDB simple family (application)
US 9002348 W 19900427; AT 90907659 T 19900427; DE 69020735 T 19900427; EP 90907659 A 19900427; ES 90907659 T 19900427; MX 2047190 A 19900426