EP1016114A2 - Gas-filled discharge path - Google Patents
Gas-filled discharge pathInfo
- Publication number
- EP1016114A2 EP1016114A2 EP98956775A EP98956775A EP1016114A2 EP 1016114 A2 EP1016114 A2 EP 1016114A2 EP 98956775 A EP98956775 A EP 98956775A EP 98956775 A EP98956775 A EP 98956775A EP 1016114 A2 EP1016114 A2 EP 1016114A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrodes
- nickel
- discharge
- gas
- electrode activation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens
- H01J17/06—Cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/38—Cold-cathode tubes
- H01J17/40—Cold-cathode tubes with one cathode and one anode, e.g. glow tubes, tuning-indicator glow tubes, voltage-stabiliser tubes, voltage-indicator tubes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/20—Means for starting arc or facilitating ignition of spark gap
- H01T1/22—Means for starting arc or facilitating ignition of spark gap by the shape or the composition of the electrodes
Definitions
- the invention is in the field of electronic components and is to be used in the design of gas-filled discharge paths with at least two electrodes, in which an electrode activation compound consisting of several components is applied to at least one of the electrodes to ensure the ignition, burning and quenching properties .
- an electrode activation compound consisting of several components which, in addition to the usual Ba ice component in the form of one or more alkali or alkaline earth metal halides and / or sodium and / or potassium silicate in an amount of 30 to 60% by weight as further components a barium compound and a so-called transition metal in metallic form such as titanium in one Amount of 5 to 25 wt.%
- a barium compound and a so-called transition metal in metallic form such as titanium in one Amount of 5 to 25 wt.%
- an oxide compound of cesium and a so-called transition metal such as tungsten that is, cesium-tungstate (Cs 2 W0 4 ) also in an amount of about 5 to 25 wt%.
- Electrodes made of a nickel-iron or a nickel-iron-cobalt alloy or of copper are usually used for gas-filled discharge gaps such as spark gaps or surge arresters. It is customary to nickel-plate the outer surface of these electrodes after the electrodes have been soldered to the insulator and before carrying out further operations such as welding on the connecting wires and carrying out tests to protect against oxidation. To this end, a large number of discharge paths as a whole are subjected to a galvanic treatment after the soldering process (WO 90/90 03 677 / EP 0 436 529 B1).
- the invention is based on the object of producing radioactive discharge paths with low ignition delays. Simplification in the dark room while meeting the requirements for the highest demands regarding the constancy of the electrical values of these discharge paths.
- the electrodes of the discharge gap are provided with a nickel layer, both on their outside of the discharge space and on their surface lying within the discharge space, the layer thickness of which is at least 5 ⁇ , and that the electrode activation compound, in addition to titanium, is also provided Contains nickel in metallic form.
- the invention therefore provides on the one hand to use completely nickel-plated electrodes for the discharge paths in question.
- This nickel plating can take place before the individual electrodes are separated for assembly to form the discharge gap.
- This early nickel plating of the electrodes makes it possible to manufacture the discharge path as a whole in just a few work steps, which can take place in quick succession.
- the flowing manufacturing process in which individual parts are treated individually in several manufacturing steps (application of an activation compound to the electrodes, joining of the insulator and electrodes, degassing, soldering, printing, welding on the connecting wires, carrying out measurements) is therefore not a foreign manufacturing step interrupted. This has a favorable effect on the manufacturing costs.
- the invention takes into account that the total nickel plating of the electrodes does not remain without influence on the electrical properties of the discharge path, because the surface of the electrodes no longer exists in the gas space of the discharge paths is formed by a copper or nickel-iron layer, but by a nickel layer.
- the nickel layer has a minimum thickness so that the nickel layer is not partially completely removed during discharge processes and that a potassium or sodium silicate is selected as the base material for the electrode material and the electrode activation material as a component of the metal
- the present transition metal also contains nickel in order to ensure the fixation of the electrode activation compound on the electrode surfaces with regard to alternating current loads with 20 A, surge current loads of 20 kA and with regard to the service life requirements.
- the lowest possible nickel removal during discharge processes can be supported by using pure argon or a mixture of argon and neon for the gas filling. Furthermore, the lowest possible operating voltage has a favorable effect on this. Optimization of the internal voltage and also the quenching properties and the provision of charge carriers can moreover be achieved by adding an alkali halide or an alkali borate to the electrode activation composition as a further component in an amount of 5 to 15% by weight.
- the surge arrester consists of the two cup-shaped electrodes 1 and 2 made of copper, which are soldered on the end face into a ceramic insulator 3. Before the soldering, the electrodes 1 and 2 are subjected to a galvanic treatment have been provided on their entire surface with a nickel layer 11 which has a thickness of approximately 6 ⁇ m.
- the active surfaces of the electrodes 1 and 2 are coated with an activation compound 4, which is embedded in surface depressions of the electrodes.
- This activation mass is a mass based on alkali or alkaline earth silicates, for example a mixture of sodium silicate and potassium silicate, each with a proportion of 20% by weight.
- Other components are a barium compound such as barium aluminum in an amount of 20% by weight, titanium and nickel as a transition metal in metallic form in an amount of 10% by weight each, an oxide compound of cesium and tungsten in an amount of likewise 10% by weight .% and a sodium tetraborate in an amount of also 10% by weight.
- the surge arrester is otherwise provided with a gas filling 5 based on argon or argon and neon.
- graphite lines 6 are also applied, which are so-called center lines that are not connected to either of the two electrodes. Instead of central ignition lines, it is also possible to use ignition lines connected to one or alternately to both electrodes.
Landscapes
- Thermistors And Varistors (AREA)
- Emergency Protection Circuit Devices (AREA)
- Lasers (AREA)
Abstract
Gas-filled discharge paths such as overvoltage branch circuits and spark arresters can have a short ignition time in a dark space due to the use of a special activation mass. In order to simplify the production of such discharge paths, entirely nickeled electrodes (1, 2; 11) are incorporated. Furthermore, in addition to titan, nickel in metallic form is added to said special activation mass (4).
Description
Beschreibungdescription
Gasgefüllte EntladungsstreckeGas-filled discharge line
Die Erfindung liegt auf dem Gebiet der elektronischen Bauelemente und ist bei der Gestaltung von gasgefüllten Entladungsstrecken mit wenigstens zwei Elektroden anzuwenden, bei denen zur Sicherstellung der Zünd-, Brenn- und Lόscheigenschaften auf wenigstens eine der Elektroden eine aus mehreren Kompo- nenten bestehende Elektrodenaktivierungsmasse aufgebracht ist.The invention is in the field of electronic components and is to be used in the design of gas-filled discharge paths with at least two electrodes, in which an electrode activation compound consisting of several components is applied to at least one of the electrodes to ensure the ignition, burning and quenching properties .
Um bei mit Edelgas gefüllten Entladungsstrecken wie Funkenstrecken oder Überspannungsableitern das jeweils gewünschte Betriebsverhalten wie Zündspannung, Ansprechzeit, statische Ansprechspannung und dynamische Ansprechspannung, Löschspannung und Glimmbrennspannung zu gewährleisten, müssen unterschiedliche Maßnahmen wie konstruktive Gestaltung der Elektroden, Art und Druck der Gasfüllung und Auswahl der auf den aktiven Oberflächen der Elektroden angeordneten Aktivierungsmasse aufeinander abgestimmt werden. Zur Erzeugung definitiver Verhältnisse ist es dabei weiterhin üblich, auf der Innenwand des Glas- oder Keramik-Isolators einen oder mehrere Zündstriche anzuordnen und gegebenenfalls eine spezielle Io- nisationsquelle, beispielsweise eine punktförmige Ablagerung aus einem radioaktiven Material, vorzusehen. Um eine gasförmige Entladungsstrecke so auszubilden, daß sie auch ohne Verwendung einer zusätzlichen Ionisationsquelle eine sehr geringe Zündverzögerung im dunklen Raum aufweist, ist bereits die Verwendung einer aus mehreren Komponenten bestehenden Elektrodenaktivierungsmasse bekannt, die außer der üblichen Ba-
siskomponente in Form eines oder mehrerer Alkali- oder Erdalkali-Halogenide und/oder Natrium- und/oder Kaliumsilikat in einer Menge von 30 bis 60 Gew.% als weitere Komponenten eine Bariumverbindung und ein sogenanntes Übergangsmetall in me- tallischer Form wie beispielsweise Titan in einer Menge von jeweils 5 bis 25 Gew.% und eine Oxydverbindung aus Cäsium und einem sogenannten Übergangsmetall wie beispielsweise Wolfram, also Cäsium-Wolframat (Cs2W04) in einer Menge von ebenfalls etwa 5 bis 25 Gew% enthält. Bei Verwendung einer derartigen Elektrodenaktivierungsmasse hat sich gezeigt, daß die Zündspannung der ersten Zündung nach 24 -stündiger Dunkellagerung der Entladungsstrecke innerhalb der von den Benutzern derartiger Entladungsstrecken geforderten Bandbreite liegt (DE 197 01 816 AI) .In order to ensure the desired operating behavior such as ignition voltage, response time, static response voltage and dynamic response voltage, quenching voltage and glow lamp voltage in the case of discharge gaps filled with noble gas such as spark gaps or surge arresters, various measures such as constructive design of the electrodes, type and pressure of the gas filling and selection of those based on the Active surfaces of the electrodes arranged activation mass can be coordinated. To create definitive conditions, it is also customary to arrange one or more ignition lines on the inner wall of the glass or ceramic insulator and, if necessary, to provide a special ionization source, for example a punctiform deposit made of a radioactive material. In order to design a gaseous discharge gap in such a way that it has a very low ignition delay in the dark room even without the use of an additional ionization source, it is already known to use an electrode activation compound consisting of several components which, in addition to the usual Ba ice component in the form of one or more alkali or alkaline earth metal halides and / or sodium and / or potassium silicate in an amount of 30 to 60% by weight as further components a barium compound and a so-called transition metal in metallic form such as titanium in one Amount of 5 to 25 wt.% Each and an oxide compound of cesium and a so-called transition metal such as tungsten, that is, cesium-tungstate (Cs 2 W0 4 ) also in an amount of about 5 to 25 wt%. When using such an electrode activation compound, it has been shown that the ignition voltage of the first ignition after the discharge path has been stored in the dark for 24 hours is within the bandwidth required by the users of such discharge paths (DE 197 01 816 AI).
Für gasgefüllte Entladungsstrecken wie Funkenstrecken oder Uberspannungsableiter werden üblicherweise Elektroden aus einer Nickel-Eisen- oder einer Nickel-Eisen-Kobalt-Legierung oder aus Kupfer eingesetzt. Es ist üblich, die äußere Ober- fläche dieser Elektroden nach dem Verlöten der Elektroden mit dem Isolator und noch vor der Durchführung weiterer Arbeitsgänge wie Anschweißen von Anschlußdrähten und Durchführung von Prüfungen zum Schutz gegen Oxidation zu vernickeln. Hierzu werden gleichzeitig eine Vielzahl von Entladungsstrecken nach dem Lδtprozeß als Ganzes einer galvanischen Behandlung unterzogen (WO 90/90 03 677 / EP 0 436 529 Bl) .Electrodes made of a nickel-iron or a nickel-iron-cobalt alloy or of copper are usually used for gas-filled discharge gaps such as spark gaps or surge arresters. It is customary to nickel-plate the outer surface of these electrodes after the electrodes have been soldered to the insulator and before carrying out further operations such as welding on the connecting wires and carrying out tests to protect against oxidation. To this end, a large number of discharge paths as a whole are subjected to a galvanic treatment after the soldering process (WO 90/90 03 677 / EP 0 436 529 B1).
Ausgehend von einer gasgefüllten Entladungsstrecke mit den Merkmalen des Oberbegriffes des Patentanspruches 1 liegt der Erfindung die Aufgabe zugrunde, den Herstellungsprozeß von radioaktivfreien Entladungsstrecken mit geringer Zündverzöge-
rung im dunklen Raum zu vereinfachen und dabei den Anforderungen an höchste Ansprüche bezüglich der Konstanz der elektrischen Werte dieser Entladungsstrecken zu genügen.Starting from a gas-filled discharge gap with the features of the preamble of claim 1, the invention is based on the object of producing radioactive discharge paths with low ignition delays. Simplification in the dark room while meeting the requirements for the highest demands regarding the constancy of the electrical values of these discharge paths.
Zur Lösung dieser Aufgabe ist gemäß der Erfindung vorgesehen, daß die Elektroden der Entladungsstrecke sowohl auf ihre außerhalb des Entladungsräumes als auch auf ihrer innerhalb des Entladungsraumes liegenden Oberfläche mit einer Nickelschicht versehen sind, deren Schichtdicke wenigstens 5 μ beträgt, und daß die Elektrodenaktivierungsmasse außer Titan zusätzlich Nickel in metallischer Form enthält.To achieve this object, it is provided according to the invention that the electrodes of the discharge gap are provided with a nickel layer, both on their outside of the discharge space and on their surface lying within the discharge space, the layer thickness of which is at least 5 μ, and that the electrode activation compound, in addition to titanium, is also provided Contains nickel in metallic form.
Die Erfindung sieht also einerseits vor, für die in Rede stehenden Entladungsstrecken ganz vernickelte Elektroden zu ver- wenden. Diese Vernickelung kann erfolgen, bevor die einzelnen Elektroden für den Zusammenbau zur Entladungsstrecke vereinzelt werden. Diese frühzeitige Vernickelung der Elektroden ermöglicht es, die Entladungsstrecke als Ganzes in wenigen Arbeitsschritten, die zeitlich unmittelbar hintereinander ab- laufen können, herzustellen. Der fließende Herstellungsprozeß, bei dem Einzelteile in mehreren Herstellungsschritten einzeln behandelt werden (Aufbringen einer Aktivierungsmasse auf die Elektroden, Zusammenfügen von Isolator und Elektroden, Entgasen, Löten, Bedrucken, Anschweißen von Anschluß- drahten, Durchführung von Messungen) wird also nicht durch einen artfremden Herstellungsschritt unterbrochen. Dies wirkt sich günstig auf die Herstellungskosten aus. - Andererseits berücksichtigt die Erfindung, daß die GanzVernickelung der Elektroden nicht ohne Einfluß auf die elektrischen Eigen- schaften der Entladungsstrecke bleibt, weil im Gasraum der Entladungsstrecken die Oberfläche der Elektroden nicht mehr
von einer Kupfer- oder Nickel-Eisen-Schicht, sondern von einer Nickelschicht gebildet wird. Um diesen Einfluß zu stabilisieren, ist vorgesehen, daß die Nickelschicht eine Mindestdicke aufweist, damit die Nickelschicht nicht bei Entladungs- Vorgängen partiell vollständig abgetragen wird und daß für die Elektrodenaktivierungsmasse als Basismaterial ein Kaliumoder Natrium-Silikat ausgewählt ist und die Elektrodenaktivierungsmasse als Komponente des in metallischer Form vorliegenden Übergangsmetalles außer Titan auch Nickel enthält, um die Fixierung der Elektrodenaktivierungsmasse auf den Elektrodenoberflächen im Hinblick auf Wechselstrombelastungen mit 20 A, Stoßstrombelastungen von 20 kA und bezüglich der Lebensdaueranforderungen zu gewährleisten. Eine möglichst geringe Nickelabtragung bei EntladungsVorgängen kann noch da- durch unterstützt werden, daß für die Gasfüllung reines Argon oder ein Gemisch aus Argon und Neon verwendet wird. Weiterhin wirkt sich hierfür eine möglichst niedrige Brennspannung günstig aus. Eine Optimierung der Brennspannung und auch der Löscheigenschaften sowie der Bereitstellung von Ladungsträ- gern läßt sich im übrigen durch eine Zugabe eines Alkalihalo- genids oder eines Alkaliborates zu der Elektrodenaktivierungsmasse als weiterer Komponente in eine Menge von 5 bis 15 Gew.% erzielen.The invention therefore provides on the one hand to use completely nickel-plated electrodes for the discharge paths in question. This nickel plating can take place before the individual electrodes are separated for assembly to form the discharge gap. This early nickel plating of the electrodes makes it possible to manufacture the discharge path as a whole in just a few work steps, which can take place in quick succession. The flowing manufacturing process, in which individual parts are treated individually in several manufacturing steps (application of an activation compound to the electrodes, joining of the insulator and electrodes, degassing, soldering, printing, welding on the connecting wires, carrying out measurements) is therefore not a foreign manufacturing step interrupted. This has a favorable effect on the manufacturing costs. On the other hand, the invention takes into account that the total nickel plating of the electrodes does not remain without influence on the electrical properties of the discharge path, because the surface of the electrodes no longer exists in the gas space of the discharge paths is formed by a copper or nickel-iron layer, but by a nickel layer. In order to stabilize this influence, it is provided that the nickel layer has a minimum thickness so that the nickel layer is not partially completely removed during discharge processes and that a potassium or sodium silicate is selected as the base material for the electrode material and the electrode activation material as a component of the metal In addition to titanium, the present transition metal also contains nickel in order to ensure the fixation of the electrode activation compound on the electrode surfaces with regard to alternating current loads with 20 A, surge current loads of 20 kA and with regard to the service life requirements. The lowest possible nickel removal during discharge processes can be supported by using pure argon or a mixture of argon and neon for the gas filling. Furthermore, the lowest possible operating voltage has a favorable effect on this. Optimization of the internal voltage and also the quenching properties and the provision of charge carriers can moreover be achieved by adding an alkali halide or an alkali borate to the electrode activation composition as a further component in an amount of 5 to 15% by weight.
Ein Ausführungsbeispiel der neuen Entladungsstrecke in Form eines Überspannungsabieiters ist in der Figur dargestellt.An embodiment of the new discharge path in the form of a surge arrester is shown in the figure.
Der Uberspannungsableiter besteht aus den beiden napffδrmig gestalteten Elektroden 1 und 2 aus Kupfer, die stirnseitig in einen Keramikisolator 3 eingelötet sind. Vor dem Einlöten sind die Elektroden l und 2 durch eine galvanische Behandlung
auf ihrer gesamten Oberfläche mit einer Nickelschicht 11 versehen worden, die eine Dicke von etwa 6 μm aufweist.The surge arrester consists of the two cup-shaped electrodes 1 and 2 made of copper, which are soldered on the end face into a ceramic insulator 3. Before the soldering, the electrodes 1 and 2 are subjected to a galvanic treatment have been provided on their entire surface with a nickel layer 11 which has a thickness of approximately 6 μm.
Die aktiven Oberflächen der Elektroden 1 und 2 sind mit einer Aktivierungsmasse 4 beschichtet, die in oberflächliche Vertiefungen der Elektroden eingebettet ist. Bei dieser Aktivierungsmasse handelt es sich um eine Masse auf der Basis von Alkali oder Erdalkali-Silikaten, beispielsweise einer Mischung von Natriumsilikat und Kaliumsilikat mit Anteilen von jeweils 20 Gew.%. Als weitere Komponenten sind eine Bariumverbindung wie Barium-Aluminium in einer Menge von 20 Gew.%, Titan und Nickel als Übergangsmetall in metallischer Form in einer Menge von jeweils 10 Gew.%, eine Oxidverbindung aus Cäsium und Wolfram in einer Menge von ebenfalls 10 Gew.% und ein Natriumtetraborat in einer Menge von ebenfalls 10 Gew.% vorgesehen .The active surfaces of the electrodes 1 and 2 are coated with an activation compound 4, which is embedded in surface depressions of the electrodes. This activation mass is a mass based on alkali or alkaline earth silicates, for example a mixture of sodium silicate and potassium silicate, each with a proportion of 20% by weight. Other components are a barium compound such as barium aluminum in an amount of 20% by weight, titanium and nickel as a transition metal in metallic form in an amount of 10% by weight each, an oxide compound of cesium and tungsten in an amount of likewise 10% by weight .% and a sodium tetraborate in an amount of also 10% by weight.
Der Uberspannungsableiter ist im übrigen mit einer Gasfüllung 5 auf der Basis von Argon oder Argon und Neon versehen.The surge arrester is otherwise provided with a gas filling 5 based on argon or argon and neon.
Auf die Innenwand des Isolators 3 sind noch Graphit zündstriche 6 aufgebracht , bei denen es sich um sogenannte Mittelzündstriche handelt , die an keine der beiden Elektroden angebunden sind . Anstelle von Mittelzündstrichen können auch an die eine oder abwechselnd an beide Elektroden angebundene Zünstriche eingesetzt werden .
On the inner wall of the insulator 3, graphite lines 6 are also applied, which are so-called center lines that are not connected to either of the two electrodes. Instead of central ignition lines, it is also possible to use ignition lines connected to one or alternately to both electrodes.
Claims
1. Gasgefüllte Entladungsstrecke wie Funkenstrecke oder Uberspannungsableiter mit wenigstens zwei Elektroden und mit ei- ner auf wenigstens eine Elektrode aufgebrachten Elektroden- Aktivierungsmasse auf der Basis von Natrium- und/oder Kalium- Silikat, die als weitere Komponenten eine Barium- Verbindung, Titan in metallischer Form und eine Oxydverbindung aus Cäsium und einem sogenannten Übergangsmetall enthält, d a d u r c h g e k e n n z e i c h n e t , daß die Elektroden (1,2) sowohl auf ihrer außerhalb des Entladungsraumes als auch auf ihrer innerhalb des Entladungsraumes liegenden Oberfläche mit einer Nickelschicht (11) versehen sind, deren Schichtdicke wenigstens 5μm beträgt und daß die Elektrodenaktivierungsmasse (4) außer Titan zusätzlich Nickel in metallischer Form enthält.1. Gas-filled discharge gap such as a spark gap or surge arrester with at least two electrodes and with an electrode activation composition based on sodium and / or potassium silicate applied to at least one electrode, which as further components comprises a barium compound, titanium in metallic Form and contains an oxide compound of cesium and a so-called transition metal, characterized in that the electrodes (1, 2) are provided with a nickel layer (11), both on their surface outside the discharge space and on their surface inside the discharge space, the layer thickness of which is at least 5 μm and that the electrode activation compound (4) contains, in addition to titanium, nickel in metallic form.
2. Entladungsstrecke nach Patentanspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß die Elektrodenaktivierungsmasse (4) Titan und Nickel zu etwa gleichen Anteilen enthält.2. Discharge path according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the electrode activation composition (4) contains titanium and nickel in approximately equal proportions.
3. Entladungsstrecke nach Patentanspruch 1 oder 2, d a d u r c h g e k e n n z e i c h n e t , daß die Elektrodenaktivierungsmasse (4) als weitere Komponente ein Alkalihalogenid oder ein Alkaliborat in einer Menge von 5 bis 15 Gew.% enthält.
3. Discharge path according to claim 1 or 2, so that the electrode activation composition (4) contains an alkali halide or an alkali borate in an amount of 5 to 15% by weight as a further component.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19741658A DE19741658A1 (en) | 1997-09-16 | 1997-09-16 | Gas-filled discharge gap e.g. spark gap or surge diverter |
DE19741658 | 1997-09-16 | ||
PCT/DE1998/002757 WO1999014782A2 (en) | 1997-09-16 | 1998-09-10 | Gas-filled discharge path |
Publications (1)
Publication Number | Publication Date |
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EP1016114A2 true EP1016114A2 (en) | 2000-07-05 |
Family
ID=7843142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP98956775A Withdrawn EP1016114A2 (en) | 1997-09-16 | 1998-09-10 | Gas-filled discharge path |
Country Status (7)
Country | Link |
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US (1) | US6529361B1 (en) |
EP (1) | EP1016114A2 (en) |
JP (1) | JP2001516943A (en) |
KR (1) | KR20010024046A (en) |
CN (1) | CN1273689A (en) |
DE (1) | DE19741658A1 (en) |
WO (1) | WO1999014782A2 (en) |
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NL6804720A (en) * | 1968-04-04 | 1969-10-07 | ||
DE2445063B2 (en) * | 1974-09-20 | 1977-09-29 | Siemens AG, 1000 Berlin und 8000 München | OVERVOLTAGE ARRANGER WITH A GAS-FILLED DISCHARGE VESSEL |
CH652246A5 (en) * | 1980-10-10 | 1985-10-31 | Cerberus Ag | SURGE ARRESTERS. |
DE3723571C2 (en) | 1987-07-16 | 1995-05-04 | Siemens Ag | High voltage spark gap |
DE3833167A1 (en) | 1988-09-27 | 1990-03-29 | Siemens Ag | GAS DISCHARGE SURGE ARRESTER |
JPH02230679A (en) | 1989-01-30 | 1990-09-13 | Yazaki Corp | Discharge tube |
CH691245A5 (en) * | 1996-01-12 | 2001-05-31 | Epcos Ag | Gas-filled discharge path. |
-
1997
- 1997-09-16 DE DE19741658A patent/DE19741658A1/en not_active Withdrawn
-
1998
- 1998-09-10 CN CN98809830A patent/CN1273689A/en active Pending
- 1998-09-10 JP JP2000512227A patent/JP2001516943A/en not_active Withdrawn
- 1998-09-10 EP EP98956775A patent/EP1016114A2/en not_active Withdrawn
- 1998-09-10 US US09/508,788 patent/US6529361B1/en not_active Expired - Fee Related
- 1998-09-10 WO PCT/DE1998/002757 patent/WO1999014782A2/en not_active Application Discontinuation
- 1998-09-10 KR KR1020007002784A patent/KR20010024046A/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO9914782A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO1999014782A3 (en) | 1999-06-10 |
KR20010024046A (en) | 2001-03-26 |
CN1273689A (en) | 2000-11-15 |
DE19741658A1 (en) | 1999-03-18 |
US6529361B1 (en) | 2003-03-04 |
WO1999014782A2 (en) | 1999-03-25 |
JP2001516943A (en) | 2001-10-02 |
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