EP 0649563 A4 19951227 - GAS TUBE VENT-SAFE DEVICE.
Title (en)
GAS TUBE VENT-SAFE DEVICE.
Title (de)
SICHERHEITENTLÜFTUNGSVORRICHTUNG FÜR EIN GASROHR.
Title (fr)
DISPOSITIF SERVANT A PROTEGER UN TUBE A GAZ EN CAS DE FUITE DU GAZ.
Publication
Application
Priority
- US 9306218 W 19930629
- US 90680392 A 19920630
Abstract (en)
[origin: WO9400856A1] A vent-safe protector (40) for a telecommunications gas tube (12) includes two electrodes (16, 55) (61, 63) separated by a non-linear resistive material (45). Each electrode is connected to a gas tube protector terminal (16, 18) to provide an alternate discharge path if the gas tube (12) fails. The non-linear resistive material (45) is substantially non-conductive when the electrical potential between the electrodes is less than the material's breakdown voltage VB. Above that voltage it becomes conductive and supports a plasma discharge therethrough, effecting a sudden increase in conductivity between the electrodes for discharging high energy potentials with a plasma voltage foldback functionally analogous to the foldback behavior of the gas tube protector.
IPC 1-7
IPC 8 full level
H01C 7/12 (2006.01); H01R 4/24 (2006.01); H01R 13/52 (2006.01); H01T 1/14 (2006.01); H02H 9/04 (2006.01); H04M 3/18 (2006.01); H04Q 1/02 (2006.01)
CPC (source: EP KR)
H01C 7/12 (2013.01 - EP KR); H01R 4/2433 (2013.01 - EP); H01R 13/5216 (2013.01 - EP); H01T 1/14 (2013.01 - EP); H04M 3/18 (2013.01 - EP); H04Q 1/028 (2013.01 - EP); H04Q 1/035 (2013.01 - EP)
Citation (search report)
- No further relevant documents disclosed
- See references of WO 9400856A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE
DOCDB simple family (publication)
WO 9400856 A1 19940106; BR 9306635 A 19981208; CA 2139329 A1 19940106; CN 1085691 A 19940420; EP 0649563 A1 19950426; EP 0649563 A4 19951227; JP H07508396 A 19950914; KR 950702330 A 19950619; MX 9303919 A 19940429; TW 211079 B 19930811
DOCDB simple family (application)
US 9306218 W 19930629; BR 9306635 A 19930629; CA 2139329 A 19930629; CN 93109541 A 19930630; EP 93916868 A 19930629; JP 50265294 A 19930629; KR 19940704804 A 19941229; MX 9303919 A 19930629; TW 81106532 A 19920818