EP0314609B1 - Druckbehälter zur Speicherung von Gasen hoher Reinheit - Google Patents

Druckbehälter zur Speicherung von Gasen hoher Reinheit Download PDF

Info

Publication number
EP0314609B1
EP0314609B1 EP88730233A EP88730233A EP0314609B1 EP 0314609 B1 EP0314609 B1 EP 0314609B1 EP 88730233 A EP88730233 A EP 88730233A EP 88730233 A EP88730233 A EP 88730233A EP 0314609 B1 EP0314609 B1 EP 0314609B1
Authority
EP
European Patent Office
Prior art keywords
grade steel
adapter piece
steel cylinder
cylinder according
neck
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
Application number
EP88730233A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0314609A3 (en
EP0314609A2 (en
Inventor
Ernst W. Dr. Ing. Lange
Karl Dipl.-Ing. Scholl
Dieter Dr. Ing. Vesperman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vodafone GmbH
Original Assignee
Mannesmann AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6339296&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0314609(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mannesmann AG filed Critical Mannesmann AG
Priority to AT88730233T priority Critical patent/ATE89904T1/de
Publication of EP0314609A2 publication Critical patent/EP0314609A2/en
Publication of EP0314609A3 publication Critical patent/EP0314609A3/de
Application granted granted Critical
Publication of EP0314609B1 publication Critical patent/EP0314609B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/10—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge with provision for protection against corrosion, e.g. due to gaseous acid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0119—Shape cylindrical with flat end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0617—Single wall with one layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0639—Steels
    • F17C2203/0643—Stainless steels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0648—Alloys or compositions of metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/018—Supporting feet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0305—Bosses, e.g. boss collars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0308—Protective caps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0329—Valves manually actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0382—Constructional details of valves, regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/21—Shaping processes
    • F17C2209/2172—Polishing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/221—Welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/016—Noble gases (Ar, Kr, Xe)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/05—Ultrapure fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/012—Reducing weight
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/05—Improving chemical properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/05—Improving chemical properties
    • F17C2260/053—Reducing corrosion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/05—Applications for industrial use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/05—Applications for industrial use
    • F17C2270/0518—Semiconductors

Definitions

  • the invention relates to a pressure vessel for storing and removing noble gas, special gas or gas mixtures of high purity according to the preamble of the main claim.
  • a pressure gas container made of an austenitic steel alloy in which ultra pure gases can be stored.
  • a metastable CrNi steel with defined contents of Ti, Nb, Ni and C is used as the container material.
  • the raw containers can be electrolytically polished and are plastically deformed by applying internal pressure at temperatures below the martensite transformation and thereby solidified.
  • the object of the invention is to provide a pressure vessel with a connection with improved properties for the storage and removal of noble gases, special gases and gas mixtures of high purity in order to avoid contamination and / or impairment of the mixture constancy of the gases during storage.
  • the pressure vessel and the connection should also be suitable for gas pressures up to approx. 200 bar and inexpensive to manufacture.
  • the solution to the problem is a pressure vessel with the characterizing features of the main claim.
  • the material of the pressure vessel is chemically resistant to a great extent to all gases and gas mixtures under consideration. It also has the property that it can be electro-polished to a high gloss (electrochemical polishing), as a result of which the active surface is leveled and considerably reduced compared to the unpolished state. This greatly reduces the absorption effect of the gases on the inner wall of the container and the release of particles. In addition, after electropolishing, the inner surface is free of residual mechanical stresses that have arisen from the manufacturing process, which reduces the tendency of the container material to sorb.
  • the pressure vessels in particular gas bottles, which mainly have the usual unit dimensions, are polished in the dipping process.
  • the pressure vessel itself is the vessel for receiving the electrolyte required for electropolishing.
  • a cathodic direct current electrode of sufficient length is inserted into the pressure vessel, so that the bottom and the head part, as well as in the case of the multi-part welded pressure vessel the weld or solder seams are polished inside.
  • Such a pressure vessel, in particular with a nickel content at the upper limit will be quite heavy and therefore expensive for higher pressures in the specified range, since the material has only moderate strength properties in the annealed state. Therefore, the measures according to the subclaims are also proposed.
  • One of the possibilities is to create a ferritic-austenitic mixed structure with a reduced nickel content, which increases the yield strength of the material by about a factor of 2.5 compared to the usual austenitic material with a small amount of molybdenum.
  • Another measure for reducing weight in the case of the multi-part welded pressure vessel is the additional work hardening of the cylindrical jacket of the pressure vessel.
  • a seamless or welded pipe is stretched close to the connection area by at least 10 to 35% in the wall thickness before it is welded to the head and bottom part.
  • the original wall thickness must remain in the connection area, since tempering the work-hardened area through the connection welding or soldering would negate the desired increase in strength. Because of the large length of the pressure vessel in relation to its diameter in some types, the stretching, for example, has a considerable weight-reducing effect on 75% of the original wall thickness.
  • a further measure with regard to saving weight is the reinforcement of the cylindrical part of the pressure vessel with a fiber winding covered by a plastic, which is applied without tension or under tension. Depending on the thickness and preload, part of the tension caused by the internal pressure is reduced via this winding, so that the wall thickness of the metallic body in the cylindrical region can be reduced.
  • the effect of saving weight is exacerbated when the proposal of a fiber winding is combined with a strain-hardened cylindrical jacket.
  • the pressure vessel can be manufactured in a seamless one-part or in a multi-part welded version.
  • the advantage of the multi-part welded design is that the individual parts can be easily machined so that the inner surfaces can be smoothed accordingly before electropolishing.
  • the small surface cracks that occur during hot forming of the top or bottom part of a one-piece bottle, which are usually unavoidable, can only be eliminated with great effort and only partially by electropolishing.
  • the effect of electropolishing is greater and the effort required for this is reduced, the smoother the surface is mechanically prepared.
  • Such a smooth surface can also be achieved by way of a one-piece pressure vessel produced by cold forming.
  • the neck area of the pressure vessel must be electropolished and the connection of the valve to the pressure vessel must not lead to material abrasion.
  • This arrangement has the advantage that the seal is only stressed by the non-rotatable adapter piece and therefore no abrasion is generated.
  • There are several options for securing the adapter against rotation e.g. B. to arrange an even polygonal profile in the form of secants for receiving an open-end wrench or a corresponding tool at the valve-side end of the adapter piece or to provide two blind holes extending in the axial direction in order to attach a hook wrench or a corresponding tool.
  • the adapter piece can be connected to the valve in such a way that the adapter piece is welded or soldered to the connecting body of the valve and then the entire device is electropolished in the immersion process.
  • a modification of this connection consists in arranging the connecting body of the valve in the bore of the adapter piece and providing a seam on the outside and / or inside at the transition point.
  • the adapter piece is provided with a standardized internal thread in the bore area and that the entire device is also electropolished after the connection body of the valve has been screwed on.
  • a sealing seam can also be attached to the transition point outside and / or inside. The screw connection without a sealing seam would have the advantage that the valve can be replaced at any time if the adapter piece is reusable.
  • the adapter piece is formed as an integral unit of the connecting body of the valve, then this unit can be screwed to the neck of the pressure vessel directly after the electropolishing and without a further connecting seam. It is also possible to design the adapter piece and the neck as an integral unit and the valve body with a corresponding collar on the neck to screw tight. As an alternative to the exemplary embodiment described, there is also the possibility of connecting the adapter piece directly to the neck of the pressure vessel via a seam. With this type of design, the sealing ring and the union nut would be omitted.
  • the connection options of the adapter piece with the valve correspond to those which have already been explained for the other exemplary embodiment.
  • the protective cap is screwed onto a section of the head part that carries an external thread, this section can be an integral part of the head part or is designed as a shrunk-on ring. This separation of the fastening of the protective cap and the valve ensures that the valve connection is not affected in the event of the bottle accidentally falling over or in the event of an unintended external impact on the protective cap.
  • the material used to make the adapter, union nut and valve body need not be identical to that of the pressure vessel, except that the adapter is an integral part of the neck. With regard to good machinability and shaping possibilities, it can be chosen accordingly, but must also meet the requirements of corrosion resistance and strength.
  • Figure 1 shows a longitudinal section (right half) and a plan view (left half) of a pressure vessel according to the invention.
  • the pressure vessel 1 is a multi-part welded design made of corrosion-resistant stainless steel, which is particularly suitable for storing and removing noble, special gases or gas mixtures of high purity and consists of a base part 2 welded to one another, a cylindrical jacket 3 and a head part 4 with a molded part Neck 5 is made.
  • the cylindrical jacket 3 is a longitudinally welded tube with a weld seam 7 running parallel to the container axis 6, but a seamless tube can also be used for this.
  • Bottom 2 and head part 4 are connected to the cylindrical jacket 3 by means of circular welds 8, 9, the three parts 2, 3, 4 of the pressure vessel 1 having been subjected to a heat treatment after being shaped, before being welded to one another.
  • the entire inner surface 10, 11, 12 of the pressure vessel 1, including the neck 5, is electropolished after the welding in order to reduce the roughness to a great extent and to reduce the remaining stresses.
  • the inner surfaces 10, 11, 12 can also be electropolished before welding, with post-treatment of the circular weld seams 8, 9 being necessary, depending on the requirements.
  • FIG. 2 the connection according to the invention is shown on an enlarged scale in longitudinal section.
  • An adapter piece 14 which is designed as an essentially cylindrical hollow body, is connected to the neck 5 of the pressure vessel 1 by means of a union nut 15.
  • the left half of the adapter piece 14 graphically represents the variant that the adapter piece 14 forms an integral unit with the connecting body 26 of the valve 25.
  • the adapter piece 14 has Region of the container-side end on an outwardly extending collar 16 which, like the cylindrical part 17, is surrounded by the union nut 15.
  • Connected to the bore part 18 of the union nut 15 is a part 19 which is provided with an internal thread and which is screwed to a neck 5 which carries an external thread 20 (FIG. 1).
  • a recess 22 is provided, into which a corrosion-resistant metallic seal 32 is arranged.
  • the seal 32 is pressed onto the end face 21 by the rotation of the union nut 15.
  • a central shoulder 23 is provided at the end on the container side, which is slightly smaller in diameter than the bore 13 of the neck 5. So that during the rotation of the union nut 15 no abrasion of the seal 32 producing rotation of the adapter piece 14 is possible , a cross-sectional shape 24 deviating from the circular shape is provided at the valve-side end.
  • two opposing secants are produced mechanically in a simple manner in order to be able to hold an open-end wrench or a comparable tool.
  • Other cross-sectional profiles that enable the adapter piece 14 to be held may just as well be.
  • Another possibility is to make two axially extending, mutually opposite blind holes in this valve-side end in order to insert a hook wrench.
  • a standard valve 25 is screwed into the adapter piece 14 with its connecting body 26 carrying a thread 33.
  • the adapter piece 14 can be welded to the connector body 26 and then electropolished without the sensitive mechanical valve parts (not shown here).
  • the known protective cap 27 is screwed onto an element 28 of the head part 4 which has an external thread. This element 28 can also be a ring shrunk onto the head part 4 (not shown here).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Stereoscopic And Panoramic Photography (AREA)
  • Projection Apparatus (AREA)
EP88730233A 1987-10-26 1988-10-25 Druckbehälter zur Speicherung von Gasen hoher Reinheit Expired - Lifetime EP0314609B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88730233T ATE89904T1 (de) 1987-10-26 1988-10-25 Druckbehaelter zur speicherung von gasen hoher reinheit.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3736579A DE3736579C3 (de) 1987-10-26 1987-10-26 Druckbehälter zur Speicherung von Gasen hoher Reinheit
DE3736579 1987-10-26

Publications (3)

Publication Number Publication Date
EP0314609A2 EP0314609A2 (en) 1989-05-03
EP0314609A3 EP0314609A3 (en) 1989-11-29
EP0314609B1 true EP0314609B1 (de) 1993-05-26

Family

ID=6339296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88730233A Expired - Lifetime EP0314609B1 (de) 1987-10-26 1988-10-25 Druckbehälter zur Speicherung von Gasen hoher Reinheit

Country Status (5)

Country Link
US (1) US4884708A (enrdf_load_stackoverflow)
EP (1) EP0314609B1 (enrdf_load_stackoverflow)
AT (1) ATE89904T1 (enrdf_load_stackoverflow)
DE (1) DE3736579C3 (enrdf_load_stackoverflow)
ES (1) ES2041333T3 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100009098A1 (it) * 2021-04-12 2022-10-12 Carbon Cylinder S R L Bocchelo per bombole ad alta pressione

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8804247L (sv) * 1988-11-24 1990-05-25 Sandvik Ab Koppling foer gasflaska flaska samt metod att tillverka flaskan
US5027952A (en) * 1989-02-28 1991-07-02 Nch Corporation Plastic bottle for acid drain opening system
US5593649A (en) * 1989-03-08 1997-01-14 Abtox, Inc. Canister with plasma gas mixture for sterilizer
US5650693A (en) * 1989-03-08 1997-07-22 Abtox, Inc. Plasma sterilizer apparatus using a non-flammable mixture of hydrogen and oxygen
US5058758A (en) * 1991-01-07 1991-10-22 Suddeth Bucky D Compressed gas cylinder valve and gauge protector
DE19522197A1 (de) * 1995-06-21 1997-01-02 Bartels & Rieger Hochdruckbehälter, insbesondere als Druckgasflasche für Atemschutz- oder Tauchgeräte, mit einem in den Flaschenhals einschraubbaren Regel- bzw. Absperrventil
KR20000006891U (ko) * 1998-09-23 2000-04-25 민병일 유아용 알루미늄 젖병의 용량 확인장치
US6739333B1 (en) 1999-05-26 2004-05-25 Boehringer Ingelheim Pharma Kg Stainless steel canister for propellant-driven metering aerosols
DE19924098A1 (de) * 1999-05-26 2000-12-07 Boehringer Ingelheim Pharma Edelstahlkanister für treibgasbetriebene Dosieraerosole
DE19955204B4 (de) * 1999-11-17 2011-01-20 Air Liquide Deutschland Gmbh Verfahren und Vorrichtung für die Kraftstoffversorgung eines flüssiggasbetriebenen Fahrzeugs
RU2178861C2 (ru) * 2000-04-19 2002-01-27 Федеральное государственное унитарное предприятие "Производственное объединение "Баррикады" Способ изготовления металлического баллона высокого давления
RU2183787C2 (ru) * 2000-09-01 2002-06-20 Государственный космический научно-производственный центр им. М.В. Хруничева Горловина заправочная
GB0031176D0 (en) * 2000-12-21 2001-01-31 Glaxo Group Ltd Medicament dispenser
US7842434B2 (en) 2005-06-15 2010-11-30 Ati Properties, Inc. Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells
US8158057B2 (en) 2005-06-15 2012-04-17 Ati Properties, Inc. Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells
US7981561B2 (en) 2005-06-15 2011-07-19 Ati Properties, Inc. Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells
TWI232281B (en) * 2002-08-16 2005-05-11 Toppoly Optoelectronics Corp A backlight device of a LCD display
US6886711B2 (en) * 2002-08-22 2005-05-03 Samtech Corporation High-pressure tank and method for fabricating the same
US8518234B2 (en) * 2003-09-03 2013-08-27 Ati Properties, Inc. Oxidation resistant ferritic stainless steels
US20070284395A1 (en) * 2006-06-09 2007-12-13 Scott Specialty Gases, Inc. Container and method for maintaining stability of gas mixtures
DE102008024292A1 (de) 2008-05-20 2009-11-26 Bayerische Motoren Werke Aktiengesellschaft Composite-Druckgasbehälter
US9080725B2 (en) * 2013-09-19 2015-07-14 Pa.E Machinery Industrial Co., Ltd. Pressure vessel
JP6307900B2 (ja) * 2014-01-29 2018-04-11 日本ゼオン株式会社 フッ素化炭化水素化合物充填ガス容器
US9683700B2 (en) * 2014-05-20 2017-06-20 Steelhead Composites, Llc. Metallic liner pressure vessel comprising polar boss
MA43446B1 (fr) 2018-10-01 2020-07-29 Imaplast Collet protecteur de valve pour bouteilles gpl
FR3096432B1 (fr) * 2019-05-24 2022-12-23 Gaztransport Et Technigaz Membrane étanche pour Cuve de Stockage
AT525931B1 (de) * 2022-02-15 2023-11-15 Gs Gruber Schmidt Gmbh Vorrichtung zur Speicherung von Gasen, Dämpfen und Flüssigkeiten in Kartuschen

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE356964A (enrdf_load_stackoverflow) * 1928-01-09
US2118388A (en) * 1936-06-29 1938-05-24 Smith Corp A O Method of making a welded spherical vessel
US2361318A (en) * 1938-11-21 1944-10-24 Union Metal Mfg Co Tube product
GB730271A (en) * 1943-01-22 1955-05-18 Homer Farnum Priest Apparatus for the storage of fluorine
US2613462A (en) * 1948-04-06 1952-10-14 Scaife Company Pressure vessel
DE834859C (de) * 1949-08-27 1952-03-24 Ruhrchemie Ag Gewindehalsring fuer Gasflaschen
US2661113A (en) * 1951-01-08 1953-12-01 Ernest H Benson High-pressure container with adapter for discharge apertures
US2685546A (en) * 1952-01-05 1954-08-03 Atomic Energy Commission Method for reducing the permeability of alloys by hydrogen
US2679454A (en) * 1952-02-08 1954-05-25 Union Carbide & Carbon Corp Article for low-temperature use
DE1093394B (de) * 1956-08-16 1960-11-24 Mannesmann Ag Verfahren zum Herstellen von Walzerzeugnissen aus stabilaustenitischen Chrom-Nickel-Staehlen
DE1824737U (de) * 1960-07-21 1961-01-12 Mannesmann Ag Unmagnetischer druckgasbehaelter.
US3152718A (en) * 1962-03-08 1964-10-13 Weatherhead Co Cylinder boss
US3384133A (en) * 1965-07-01 1968-05-21 William E. Gordon Arrangement for filling or refilling a dispenser
GB1159972A (en) * 1965-09-24 1969-07-30 English Electric Co Ltd Improvements in or relating to Pressure Vessels
FR2082455A5 (enrdf_load_stackoverflow) * 1970-03-17 1971-12-10 Pingeot Bardin Ets
US3815773A (en) * 1971-05-17 1974-06-11 Brunswick Corp Cyclic pressure vessel
GB1388431A (en) * 1972-03-06 1975-03-26 Jackson R G Process of working a metal tube
SE374559B (enrdf_load_stackoverflow) * 1973-10-05 1975-03-10 Avesta Jernverks Ab
DE2364377C3 (de) * 1973-12-22 1982-11-18 Messer Griesheim Gmbh, 6000 Frankfurt Stahlflasche zur Aufbewahrung von Gasgemischen
GB1495259A (en) * 1974-11-15 1977-12-14 Fulmer Res Inst Ltd Gas containers
DE2528942A1 (de) * 1975-06-28 1976-12-30 Hoechst Ag Verfahren zum zonenweisen elektropolieren der inneren oberflaeche grossraeumiger behaelter
DE2538585A1 (de) * 1975-08-29 1977-03-03 John F Jumer Verfahren und vorrichtung zum polieren der innenflaeche eines laenglichen behaelters
JPS5343663A (en) * 1976-10-04 1978-04-19 Nippon Kokan Kk Manufacturing process of good accurate form steel sections for low temperature
DE3002768C2 (de) * 1980-01-26 1984-02-23 Gesellschaft zur Wiederaufbereitung von Kernbrennstoffen mbH, 7514 Eggenstein-Leopoldshafen Absperrventil für in der Tiefsee zu lagernde Gasflaschen
US4332331A (en) * 1980-06-03 1982-06-01 Fawley Norman Rotatable valve protector for compressed gas cylinder
DE3103646C2 (de) * 1981-02-04 1984-03-29 Aluminium-Walzwerke Singen Gmbh, 7700 Singen Druckbehälter zur Lagerung sowie zum Transport gasförmiger Strömungsmittel
DE3610855A1 (de) * 1985-03-01 1987-10-08 Gok Gmbh & Co Kg Unter behaelterdruck austauschbares sicherheitsventil
DE3507263C2 (de) * 1985-03-01 1987-01-02 GOK Regler- und Armaturen GmbH & Co KG, 5200 Siegburg Unter Behälterdruck austauschbares Sicherheitsventil
DE3614290A1 (de) * 1986-04-26 1987-10-29 Messer Griesheim Gmbh Druckgasbehaelter aus einer austenitischen stahllegierung
DE3617092A1 (de) * 1986-05-21 1987-11-26 Poligrat Gmbh Innenoberflaeche einer gasflasche und verfahren zu deren herstellung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100009098A1 (it) * 2021-04-12 2022-10-12 Carbon Cylinder S R L Bocchelo per bombole ad alta pressione
WO2022218672A1 (en) * 2021-04-12 2022-10-20 Carbon Cylinder S.R.L. Nozzle for high-pressure cylinders

Also Published As

Publication number Publication date
DE3736579A1 (de) 1989-05-03
ES2041333T3 (es) 1993-11-16
EP0314609A3 (en) 1989-11-29
ATE89904T1 (de) 1993-06-15
EP0314609A2 (en) 1989-05-03
US4884708A (en) 1989-12-05
DE3736579C2 (enrdf_load_stackoverflow) 1991-05-23
DE3736579C3 (de) 1996-10-17

Similar Documents

Publication Publication Date Title
EP0314609B1 (de) Druckbehälter zur Speicherung von Gasen hoher Reinheit
DE19820054B4 (de) Radbefestiger
DE69616827T2 (de) Gasbehälter
DE69013606T2 (de) Dünnwandige metallische Hochdruckflaschen durch eine Aufwicklung auf Kohlenstoffaserbasis verstärkt und Verfahren zur Herstellung.
DE102012109015B3 (de) Tankcontainer
DE10130681A1 (de) Selbstbohrende Blindnietmutter
DE3727326C2 (enrdf_load_stackoverflow)
DD273613A1 (de) Spundfass
EP0698757A2 (de) Verfahren zur Herstellung von Serienventilen
EP0314608A2 (de) Verfahren und Vorrichtung zur Herstellung von Skulpturen in reduzierter Grösse
DE68912731T3 (de) Kupplung für Gasbehälter.
DE2306682A1 (de) Aluminiumflaschen, insbesondere zur ueberdruckspeicherung von pb-gas, und verfahren zur homogenisierung und zum vergueten des flaschenstoffes
DE9413406U1 (de) Schweißbolzen mit Hutmutter
DE8408506U1 (de) Druckgasflasche mit einem faserverstaerkten kunststoffmantel
DE69026535T2 (de) Stromzuführungswalze
EP0587926A1 (de) Brennstab für einen Kernreaktor und Schweissvorrichtung zu dessen Herstellen
EP0210652B1 (de) Schutzelement zum Abdecken von Teilbereichen an zu bearbeitenden Werkstücken
EP0285686B1 (de) Saugrohr für Vakuum-Druckgiessmaschine
EP0000379B1 (de) Verfahren zum Lichtbogenbolzenschweissen mit Hubzündung, sowie Schweisspistole zur Durchführung dieses Verfahrens.
DE3815347C2 (enrdf_load_stackoverflow)
DE20119598U1 (de) Schweißbolzen für eine elektrisch leitende Verbindung und elektrisch leitende Verbindung mit Schweißbolzen
DD203805A5 (de) Verfahren zur verhinderung des abbrands an einer stromleitenden elektrode fuer metallurgische oefen und elektrode
DE3334661C2 (enrdf_load_stackoverflow)
EP1228250A1 (de) Gasspülstein für metallurgische gefässe mit durch schraubendruckfeder beaufschlagtem verschlusskörper
AT392677B (de) Zweiteiliges ventilsystem

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT ES FR GB IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT ES FR GB IT SE

17P Request for examination filed

Effective date: 19891116

17Q First examination report despatched

Effective date: 19900503

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT ES FR GB IT SE

REF Corresponds to:

Ref document number: 89904

Country of ref document: AT

Date of ref document: 19930615

Kind code of ref document: T

ITF It: translation for a ep patent filed
ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19930621

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2041333

Country of ref document: ES

Kind code of ref document: T3

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: LINDE AKTIENGESELLSCHAFT, WIESBADEN

Effective date: 19940228

EAL Se: european patent in force in sweden

Ref document number: 88730233.9

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19950302

K1C3 Correction of patent application (complete document) published

Effective date: 19890503

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19960923

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19961018

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19970915

Year of fee payment: 10

Ref country code: FR

Payment date: 19970915

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19970925

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971025

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES

Effective date: 19971027

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 NON-PAYMENT OF DUE FEES

Effective date: 19981025

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 NON-PAYMENT OF DUE FEES

Effective date: 19981026

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19981025

EUG Se: european patent has lapsed

Ref document number: 88730233.9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990630

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20001009

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: 20051025