EP0968519B1 - Ionisationskammer für radiometrische messeinrichtungen - Google Patents
Ionisationskammer für radiometrische messeinrichtungen Download PDFInfo
- Publication number
- EP0968519B1 EP0968519B1 EP98925415A EP98925415A EP0968519B1 EP 0968519 B1 EP0968519 B1 EP 0968519B1 EP 98925415 A EP98925415 A EP 98925415A EP 98925415 A EP98925415 A EP 98925415A EP 0968519 B1 EP0968519 B1 EP 0968519B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ionization chamber
- fact
- chamber according
- measuring
- casing
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J47/00—Tubes for determining the presence, intensity, density or energy of radiation or particles
- H01J47/02—Ionisation chambers
Definitions
- the invention relates to an ionization chamber for radiometric Measuring devices, in particular for traversing Surface mass measuring systems, consisting of a housing in which there is filling gas with at least one radiation entry window and a number of collecting electrodes in the housing with isolated electrical connections, an electrical between the housing and the collecting electrodes There is a potential difference (voltage).
- ionization chambers In industrial plants for the radiometric measurement of Material webs are used in their production or processing Usually ionization chambers are used as detectors.
- the ionization chambers consist of one housing, one Collecting electrode and a filling gas. That through a radiation entrance window incoming radiation creates in the filling gas free charge carriers (ions and electrons).
- One between Electrode and housing applied voltage creates in the chamber an electric field that the charge carriers follow.
- the way resulting current between electrode and housing (in ⁇ A - to pA range) is measured and, for example, in voltage signals converted.
- the measurement signal is highly isolated from that Housing from the inside of the chamber via a gas-tight bushing with a connection to a signal line to the outside guided.
- JP 62073548 A PATENT ABSTRACTS OF JAPAN vol.011, no.271 of 03.09.87
- each is isolated here Signal lines in the area of the insulator bushing individually from one surround your own guard ring.
- the guard ring thus prevents the occurrence disturbing residual currents, so that the basic current of an ionization chamber without radiation at their working voltage (mostly some hundred volts) minimum, i.e. typically less than 0.1 pA is.
- the radiometric measuring system in a production or Machining facility consists of a source of ionizing Radiation, the detector, i.e. the ionization chamber and the Material under test.
- the degree of interaction between the radiation and the Measured material e.g. absorption, backscattering, fluorescence
- the radiation source system and detector can in most cases across the web be moved.
- the cross-profile spatial resolution can be refined become.
- the spatial resolution of a cross-profile measurement with the usual axially symmetrical ionization chambers is naturally limited by the chamber diameter.
- the resolvable structure is specified in the technical literature with twice the detector extension.
- a finer spatial resolution must be achieved with detectors of less extent in the transverse direction to the material web. These can be arranged so that a cross-section can be measured with a higher resolution than with a corresponding single detector.
- Atomic number of the substrate is only slightly different from the atomic number the layer to be applied (e.g. zinc on steel). In this case, the known beta backscattering method is unsuitable.
- a possible X-ray fluorescence radiation of the two-component Systems provides information about the thickness of the applied Layer. The energy of the fluorescent radiation is element-specific; their intensity is different from that examined Amount of material and thus dependent on the layer thickness. selective Filters absorb through the K-edge effect e.g. strongly the X-rays emanating from the layer and transmit largely the radiation emanating from the substrate. Two detector sections with different filters can then about calibrations for measuring a component of the two-component Systems can be used.
- the detector sections can be in a multi-chamber like be described. In principle, you can use the two-component System in certain cases n-1 components an n-component system with a chamber with n measuring sections be determined.
- H ⁇ er is a chamber in two sections subdivided, whose signals are subtracted from each other in an analog manner be an output signal as a measure of the desired measurand to get what was state of the art at the time.
- a converted one corresponds to the current state of the art (low-resistance) chamber section output signal, the a corresponding further processing on a computer and processor basis can be supplied.
- DE 195 45 340 A1 an ionization chamber for radiometric was already Measuring devices, in particular for traversing surface mass measuring systems proposed that as generic for the described below Invention is to be referred to.
- DE 195 45 340 consists of a housing containing a purge gas and a number of collecting electrodes and that with at least one radiation entrance window is provided.
- the collecting electrodes are insulated with provided external electrical connections.
- the interior of the ionization chamber is divided into a plurality of adjacent measuring sections, in each of which a collecting electrode is arranged, with between the Housing and the collecting electrodes an electrical potential difference consists.
- DE 195 45 340 A1 was published on June 12, 1997 and thus after the priority date (03/21/97) of the present international application published.
- This task underlying the invention is in an ionization chamber of the type mentioned solved that the interior of the housing in a plurality of adjacent and mutually delimited measuring sections with the is divided into respective collecting electrodes that the collecting electrodes are connected to electrical connections which through the isolator of a gas-tight multiple bushing are led through to the outside and that the insulator with one electrically surrounding the electrical connections conductive area that is both opposite the housing, as well as the connections arranged electrically isolated is, however, in the de-energized state at electrode potential lies.
- This solution according to the invention makes it possible to measure the mass per unit area enables that compared to using conventional Ionization chambers, for example, have a finer spatial resolution or an energy selection from the starting point Radiation reached.
- Guard ring formed in the form of a metal ring, the same time surrounds several collecting electrode connections.
- the between the housing and the protective ring insulator can be part of an insulating tube, one of which has metal contact with the Housing is connected gastight. With the opposite Metal contact of the insulating tube can be performed multiple times be connected gastight.
- the protective ring can also be used as Surface electrode are formed on at least one Side of the insulator surrounds the connectors.
- the measuring sections are carried out Partitions delimited from each other, which go directly to the radiation entry windows belonging to the corresponding section are sufficient to influence the measuring sections, for example by drifting load carriers.
- the collecting electrodes cannot, as is usually the case in conventional ones Single chambers, mechanically held by the signal lines themselves become. Instead, they are isolated on a support applied and fixed within the chamber, the on Guard ring potential is and in turn isolated from Chamber housing is arranged, which ensures the protection ring principle leads.
- the electrodes can vary depending on the requirement be shaped. So the electrodes can be stretched out Foil or foil strips consist, or from several stretched Wires exist.
- the ionization chamber has a rectangular or square cross section on, with the measuring sections next to each other or two or arranged in several rows, flush or offset are.
- the ionization chamber has one round cross section.
- the measuring sections in the ionization chamber radially next to each other can be arranged, in principle it is also possible is, the measuring sections in the ionization chamber concentric to arrange each other.
- each measuring section of the ionization chamber Filter is assigned.
- Figure 2 shows the structure of an ionization chamber 1 with measuring sections 2 inside the housing 3, each independent form measuring units. Each section 2 is included separated from its neighboring sections by partitions 4. The Partitions 4 ensure that oblique radiation is minimized through the chamber volume into the neighboring section, the is achieved in that the partitions 4 immediately extend to the radiation entrance window 5, which forms the upper end of the housing 3.
- the ionization chamber 1 can be, for example, a rectangular one Have cross section, the measuring sections 2 also two or can be arranged offset from one another in several rows (Fig. 2a).
- An electrode 6 is arranged within each measuring section 2, which is adapted to the design of the measuring section 2. Your Shape bears the demand for the lowest possible Gas displacement, the largest possible electrical Field, avoiding gas reinforcements and one if possible low microphony bill. Therefore, the thickness and the The mass of the electrode components is kept small, however Minimum radii not undercut.
- the electrode 6 either consists of a holding body 7 the tensioned wires 8 are arranged, the holding body 7 freestanding via an insulating body 21 on a support 9 is arranged (Fig. 2, 4). As shown in Fig. 3, the electrode 6 also takes the form of a wire electrode 10 have several wires joined together.
- the carrier 9 lies on guard ring potential.
- filling gases are preferred high density (e.g. xenon) used to get the highest possible Radiation absorption near the radiation entrance window 5 of the To reach ionization chamber 1.
- high density e.g. xenon
- a multiple feedthrough with protective ring is used.
- This multiple implementation consists of an insulating tube 11, on which a metal ring 12, which serves as a protective ring, an insulator 13 is attached (Fig. 5). Through the isolator 13 are connections 14 in the form of metal pins, which over Signal lines 15 are connected to the electrodes 6.
- connections 14 in the form of metal pins, which over Signal lines 15 are connected to the electrodes 6.
- the signals are not shown Current-voltage converters supplied, their output signal is processed further by the respective measuring system.
- Fig. 6 shows such a multiple implementation with several Connections 14 in an insulator 17 made of a highly insulating Material. On both sides of the surface of the insulator 17 Rings in the form of surface electrodes 18 around the connections 14 applied, whose potential acts as a protective ring. about one of the connections 14 becomes the protective ring potential led inside. With this arrangement, only Surface currents on the insulation material between the Prevents housing and the collecting electrodes.
- An ionization chamber 1 with several sections 2 as above can also be used to detect X-rays are used in such a way that individual measuring sections 2 exposed to differently filtered radiation become. This takes place in that between the material to be measured 19 and the individual measuring sections 2 filters 20 are arranged. Receives the radiation emanating from a radiation source 22 through their characteristic energy spectrum in front of the filter 20 the absorption or fluorescence behavior of the sample 19.
- Filter 20 can be composed of several components Material (e.g. paper with fillers, metal alloys) be measured.
- FIG. 8 shows an ionization chamber with a reinforced radiation entrance window 5, on the outside a wire 16 extends, for example, by a Welded connection is attached.
Landscapes
- Measurement Of Radiation (AREA)
- Electron Tubes For Measurement (AREA)
Description
Bekannt ist die Verwendung eines Arrays aus Halbleiterdetektoren (Silizium-pin-Dioden), die im Strom-Modus betrieben werden. Hierbei zeigt sich jedoch die starke Anfälligkeit der Halbleiterdetektoren gegen Temperaturänderungen, wie sie in industriellen Produktionsanlagen ständig auftreten. Dadurch werden die Meßsignale verfälscht.
- Fig. 2
- den Aufbau einer erfindungsgemäßen Ionisationskammer mit Elektroden in Form gespannter Drähte;
- Fig. 2a
- eine zweireihige versetzte Anordnung von Meßabschnitten;
- Fig. 3
- eine Elektrode in Antennenform;
- Fig. 4
- eine Vorderansicht einer Elektrode nach Fig. 1;
- Fig. 5
- eine Mehrfachdurchführung für die Anschlüsse der Elektroden mit einem auf einem Isolierrohr angeordneten Isolator und einem Metallring;
- Fig. 6 a, b
- eine Mehrfachdurchführung mit einer Flächenelektrode als Schutzring;
- Fig. 7
- eine Ionisationskammer zum Nachweis von Röntgenstrahlung und mehreren Filtern; und
- Fig. 8
- eine Ionisationskammer mit einem verstärkten Strahlungseintrittsfenster.
- 1
- Ionisationskammer
- 2
- Meßabschnitt
- 3
- Gehäuse
- 4
- Trennwand
- 5
- Strahlungseintrittsfenster
- 6
- Sammelelektrode
- 7
- Haltekörper
- 8
- Draht
- 9
- Träger
- 10
- Drahtelektrode
- 11
- Isolierrohr
- 12
- Metallring
- 13
- Isolator
- 14
- Anschluß
- 15
- Signalleitung
- 16
- Draht
- 17
- Isolator
- 18
- Flächenelektrode
- 19
- Meßgut
- 20
- Filter
- 21
- Isolierkörper
- 22
- Strahlungsquelle
Claims (22)
- Ionisationskammer für radiometrische Meßeinrichtungen, insbesondere für traversierende Flächenmassemeßsysteme, bestehend aus einem Gehäuse (3), in dem sich ein ionisierbares Füllgas befindet, mit wenigstens einem Strahlungseintrittsfenster (5) und einer Anzahl von gegenüber dem Gehäuse (3) eine elektrische Potentialdifferenz aufweisenden Sammelelektroden (6) mit isoliert nach außen geführten Anschlüssen (14), wobei der Innenraum des Gehäuses (3) in eine Mehrzahl benachbarter und gegenseitig abgegrenzter Meßabschnitte (2), die jeweils eine Sammelelektrode (6) enthalten, unterteilt ist, dadurch gekennzeichnet, daß die Sammelelektroden (6) mit elektrischen Anschlüssen (14) verbunden sind, die durch den Isolator (13; 17) einer gasdichten Mehrfach-Durchführung hindurch nach außen geführt sind und daß der Isolator (13; 17) mit einem die elektrischen Anschlüsse (14) gemeinsam umgebenden elektrisch leitfähigen Bereich versehen ist, der zur Ausbildung eines Schutzrings sowohl gegenüber dem Gehäuse (3), als auch den Anschlüssen (14) elektrisch isoliert angeordnet ist, jedoch im stromlosen Zustand auf dem Potential der Sammelelektroden (6) liegt.
- Ionisationskammer nach Anspruch 1, dadurch gekennzeichnet, daß der Schutzring mit einem der Anschlüsse (14) elektrisch verbunden ist.
- Ionisationskammer nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Schutzring als Metallring (12) ausgebildet ist, der den Isolator (13) umgibt und die Anschlüsse (14) einschließt.
- Ionisationskammer nach Anspruch 3, dadurch gekennzeichnet, daß der Isolator (13) mit dem Metallring (12) auf einem Isolierrohr (11) angeordnet ist, das mit dem Gehäuse (3) gasdicht verbunden ist.
- Ionisationskammer nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Schutzring als Flächenelektrode (18) ausgebildet ist, die auf wenigstens einer Seite des Isolators (17) die Anschlüsse (14) umgibt.
- Ionisationskammer nach Anspruch 5, dadurch gekennzeichnet, daß sowohl auf der Gehäuseinnenseite, als auch auf der Gehäuseaußenseite eine Flächenelektrode (18) angeordnet ist, die elektrisch miteinander verbunden sind.
- Ionisationskammer nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Meßabschnitte (2) durch Trennwände (4) voneinander abgegrenzt sind, die bis unmittelbar an das zugehörige Strahlungseintrittsfenster (5) reichen.
- Ionisationskammer nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß innerhalb des Gehäuses (3) gegenüber dem Strahlungseintrittsfenster (5) ein sich über alle Abschnitte erstreckender Träger (9) angeordnet ist, der gegenüber dem Gehäuse (3) elektrisch isoliert ageordnet ist.
- Ionisationskammer nach Anspruch 8, dadurch gekennzeichnet, daß der Träger (9) das gleiche Potential aufweist, wie der Schutzring.
- Ionisationskammer nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß die Elektroden (6) an Haltekörpern (7) angeordnet sind, die über Isolierkörper (21) auf dem Träger (9) befestigt sind.
- Ionisationskammer nach Anspruch 10, dadurch gekennzeichnet, daß die Elektroden (6) wenigstens einen gespannten Draht (8) aufweisen, der am Haltekörper (7) befestigt ist.
- Ionisationskammer nach Anspruch 11, dadurch gekennzeichnet, daß mehrere Drähte (8) parallel zueinander und senkrecht zur Strahlungseintrittsrichtung angeordnet sind.
- Ionisationskammer nach Anspruch 10, dadurch gekennzeichnet, daß die Elektroden (6) aus einer gespannten Folie oder Foliestreifen bestehen.
- Ionisationskammer nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß die Ionisationskammer (1) einen rechteckigen oder quadratischen Querschnitt aufweist und daß die Meßabschnitte (2) nebeneinander oder mehrreihig versetzt zueinander angeordnet sind.
- Ionisationskammer nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß die Ionisationskammer (1) einen runden Querschnitt aufweist.
- Ionisationskammer nach Anspruch 15, dadurch gekennzeichnet, daß die Meßabschnitte (2) in der Ionisationskammer (1) radial nebeneinander angeordnet sind.
- Ionisationskammer nach Anspruch 15, dadurch gekennzeichnet, daß die Meßabschnitte (2) in der Ionisationskammer (1) konzentrisch zueinander angeordnet sind.
- Ionisationskammer nach einem der Ansprüche 1 bis 17, dadurch gekennzeichnet, daß oberhalb des Strahlungseintrittsfensters (5) Filter (20) für Röntgenstrahlung angeordnet sind.
- Ionisationskammer nach Anspruch 18, dadurch gekennzeichnet, daß jedem Meßabschnitt (2) der Ionisationskammer (1) ein Filter (20) zugeordnet ist.
- Ionisationskammer nach Anspruch 19, dadurch gekennzeichnet, daß die Filter (20) unterschiedliche, aufeinander abgestimmte Filtereigenschaften aufweisen.
- Ionisationskammer nach einem der Ansprüche 1 bis 20, dadurch gekennzeichnet, daß sich über die Außenseite des Strahlungseintrittsfensters (5) mindestens ein auf dieser befestigter Draht (16) oder eine Rippe erstreckt.
- Ionisationskammer nach einem der Ansprüche 1 bis 21, dadurch gekennzeichnet, daß die Strahlungseintrittsfenster (5) bei mehrreihig versetzt zueinander angeordneten Meßabschnitten (2) teilweise derart abgedeckt sind, daß die Messung eines Querprofilausschnittes nahtlos und unzweideutig erfolgt.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712032 | 1997-03-21 | ||
DE19712032 | 1997-03-21 | ||
DE19731608 | 1997-07-23 | ||
DE1997131608 DE19731608C1 (de) | 1997-07-23 | 1997-07-23 | Ionisationskammer für radiometrische Meßeinrichtungen |
PCT/DE1998/000818 WO1998043116A2 (de) | 1997-03-21 | 1998-03-20 | Ionisationskammer für radiometrische messeinrichtungen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0968519A2 EP0968519A2 (de) | 2000-01-05 |
EP0968519B1 true EP0968519B1 (de) | 2003-05-21 |
Family
ID=26035124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98925415A Expired - Lifetime EP0968519B1 (de) | 1997-03-21 | 1998-03-20 | Ionisationskammer für radiometrische messeinrichtungen |
Country Status (5)
Country | Link |
---|---|
US (1) | US6278121B1 (de) |
EP (1) | EP0968519B1 (de) |
JP (1) | JP2002507311A (de) |
DE (1) | DE59808464D1 (de) |
WO (1) | WO1998043116A2 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7701123B2 (en) * | 2005-12-13 | 2010-04-20 | Varian, Inc. | Electron source for ionization with leakage current suppression |
CN115327603A (zh) * | 2022-08-01 | 2022-11-11 | 中国原子能科学研究院 | 一种束流探测极排及束流探测装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1040707B (de) * | 1956-11-13 | 1958-10-09 | Siemens Ag | Strahlungsmessgeraet in Vergleichsschaltung, vorzugsweise Dickenmessanlage |
US3676682A (en) * | 1968-10-30 | 1972-07-11 | Fred W Falk | Absorbed ionizing radiation measuring device |
US3575597A (en) * | 1969-04-01 | 1971-04-20 | Nasa | A multichannel photoionization chamber for absorption analysis |
FR2105649A5 (en) * | 1970-09-16 | 1972-04-28 | Commissariat Energie Atomique | Ionisation chamber detector system - for determination of activity of gamma- or x-ray sources |
US3914607A (en) * | 1973-12-12 | 1975-10-21 | Industrial Nucleonics Corp | Thickness measuring apparatus and method for tire ply and similar materials |
DE2747872A1 (de) * | 1977-10-26 | 1979-05-03 | Philips Patentverwaltung | Strahlennachweisvorrichtung |
US4301368A (en) * | 1980-01-31 | 1981-11-17 | Hospital Physics Oy | Ionizing radiation detector adapted for use with tomography systems |
US5010252A (en) * | 1983-12-27 | 1991-04-23 | General Electric Company | Ionization detector |
JPS6273548A (ja) * | 1985-09-27 | 1987-04-04 | Hamamatsu Photonics Kk | 電子増倍管 |
US4751391A (en) * | 1986-12-19 | 1988-06-14 | General Electric Company | High resolution X-ray collimator/detector system having reduced sensitivity to leakage radiation |
DE19545340C2 (de) * | 1995-12-05 | 1998-01-29 | Vacutec Mestechnik Gmbh | Vorrichtung zur Kontrolle von Flächenmassen |
-
1998
- 1998-03-20 JP JP54468298A patent/JP2002507311A/ja active Pending
- 1998-03-20 DE DE59808464T patent/DE59808464D1/de not_active Expired - Lifetime
- 1998-03-20 WO PCT/DE1998/000818 patent/WO1998043116A2/de active IP Right Grant
- 1998-03-20 EP EP98925415A patent/EP0968519B1/de not_active Expired - Lifetime
- 1998-03-20 US US09/381,555 patent/US6278121B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0968519A2 (de) | 2000-01-05 |
WO1998043116A2 (de) | 1998-10-01 |
DE59808464D1 (de) | 2003-06-26 |
US6278121B1 (en) | 2001-08-21 |
WO1998043116A3 (de) | 1998-12-17 |
JP2002507311A (ja) | 2002-03-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE4130810C1 (de) | ||
DE19825274B4 (de) | Prüfstation mit innerer und äußerer Abschirmung | |
DE3148611C2 (de) | Wasserstoff-Fühler | |
DE2438768A1 (de) | Sonde zur messung der strahlung, insbesondere innerhalb des kerns von kernreaktoren | |
DE112010003127T5 (de) | Spannungsumformer mit vakuumkondensator | |
DE3437104A1 (de) | Neutronendetektor mit einem weiten bereich | |
DE19730896A1 (de) | Ionen-Mobilitätsspektrometer in Zentripetalanordnung | |
DE2437171C3 (de) | Ionisationskammer | |
EP0968519B1 (de) | Ionisationskammer für radiometrische messeinrichtungen | |
DE19528290C1 (de) | Verfahren zur Überwachung des Qualitätszustandes des Füllgases Schwefelhexafluorid in gasgefüllten Anlagen | |
DE2000949C3 (de) | Vorrichtung zum Messen des Druckes eines Gases | |
DE19731608C1 (de) | Ionisationskammer für radiometrische Meßeinrichtungen | |
DE3249284T1 (de) | Mehranoden-Tiefschacht-Strahlungsdetektor | |
DE3524379C2 (de) | ||
DE1950196A1 (de) | Sauerstoff-Messfuehler | |
WO1997021075A2 (de) | Vorrichtung zur kontrolle von flächenmassen | |
DE19838759C2 (de) | Verfahren und Photoionisationsdetektor zur Spurengasanalyse mit Matrixkompensation | |
DE19535216C1 (de) | Meßkammeranordnung für einen Photoionisationsdetektor | |
EP0191899B1 (de) | Sensor zur Messung elektrischer Eigenschaften im elektrischen Feld | |
WO1998043116B1 (de) | Ionisationskammer für radiometrische messeinrichtungen | |
DE1913274A1 (de) | Molekularspektrometer | |
WO1996008859A1 (de) | Rohrförmige metallkapselung | |
DE69401374T2 (de) | Ionisationskammer mit hoher Empfindlichkeit für Gammastrahlung | |
DE4200308A1 (de) | Messkammer fuer die bestimmung des radioaktiven edelgases radon in traegergasgemischen | |
DE1648463B1 (de) | Vakuummeter |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19990730 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE FI FR GB IT SE |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 20020612 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: HILDEBRANDT, STEFFEN Inventor name: URBAN, FRANZ-JOSEF Inventor name: LAUBE, SIEGFRIED |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Designated state(s): DE FI FR GB IT SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030521 Ref country code: FR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030521 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 59808464 Country of ref document: DE Date of ref document: 20030626 Kind code of ref document: P |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030821 |
|
GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 20030521 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20040224 |
|
EN | Fr: translation not filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20090326 Year of fee payment: 12 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100320 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FI Payment date: 20160318 Year of fee payment: 19 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20170327 Year of fee payment: 20 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170320 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 59808464 Country of ref document: DE |