WO1996014104A1 - Soupape combinee pour le remplissage et le vidage - Google Patents

Soupape combinee pour le remplissage et le vidage Download PDF

Info

Publication number
WO1996014104A1
WO1996014104A1 PCT/NO1995/000201 NO9500201W WO9614104A1 WO 1996014104 A1 WO1996014104 A1 WO 1996014104A1 NO 9500201 W NO9500201 W NO 9500201W WO 9614104 A1 WO9614104 A1 WO 9614104A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
piston
inlet
powder
flow
Prior art date
Application number
PCT/NO1995/000201
Other languages
English (en)
Inventor
David A. Hill
Original Assignee
Norfass A/S
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
Application filed by Norfass A/S filed Critical Norfass A/S
Priority to AU38834/95A priority Critical patent/AU3883495A/en
Publication of WO1996014104A1 publication Critical patent/WO1996014104A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/1226—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston the fluid circulating through the piston
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/66—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers
    • A62C13/72—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers characterised by releasing means operating essentially simultaneously on both containers

Definitions

  • the present invention relates to a dual-function valve for supplying a container holding powder or fluid with a gaseous propellant and for discharging the contents of the container by means of a gaseous propellant without the contents of the container having to remain under pressure while stored.
  • Powders and fluids stored in containers may be forced out of the containers when there is higher pressure in the container than in the surroundings so that the contents are forced out of a riser having its aperture near the bottom of the container.
  • Many fluids have a vapor pressure at ambient temperature which is sufficient to expel the fluid from the container .
  • a gaseous propellant for example nitrogen, C0 2 , compressed air, pyrotechnical byproducts (squib charges) or mixtures of various gases.
  • a gaseous propellant under pressure is in direct contact with the contents of the container while stored.
  • the gaseous propellant may be soluble in the contents of the container and give the contents undesirable characteristics.
  • a gaseous propellant that i ⁇ dissolved in a fluid may lead to the formation of a two-phase flow, viz. , a gas phase and a liquid phase, in the tube network for discharging the contents of the container. This may lead to great problems in connection with the discharge.
  • Halon installations are widely used, but are being phased out because of their detrimental effect on the environment.
  • Halon belongs to the chemical group of halogenated hydrocar- bon ⁇ which are known to have certain environmentally undesirable aspects.
  • Halogenated hydrocarbons generally have a very strong greenhouse effect, and it breaks down the ozone layer which protects against ultraviolet radiation. As a result of this a resolution was adopted in the Montreal protocol demanding a general ban on the installation of new halon systems simultaneously with a phasing out of existing halon systems.
  • Halon is used as a fire extinguishing medium in installations for manual and/or automatic release. Halon in liquid form is stored in tanks of various sizes. At the release of the fire extinguishing equipment halon is conveyed through a tube system to nozzles and sprayed out in areas where fire is to be extinguished or prevented.
  • Halon 1301 which is a widely used halon, has a vapor pressure at normal ambient tempera ⁇ ture of about 15 bar. It therefore turns into gas form immediately after leaving the nozzles, but may be kept chiefly in a liquid phase within the tube system.
  • Halon will partly be in gas form above the liquid surface in the storage tank.
  • the pressure this generates is not always adequate to expel halon through the tube system sufficiently fast and completely.
  • the storage tank is therefore normally pressurized by a gaseous propellant to a pressure that is higher than the vapor pressure of the halon, apart from the fact that large halon systems may have external injection of gaseous propellant during discharge.
  • FM 200 is FM 200 from Great Lakes Chemicals.
  • FM 200 has a vapor pressure at ambient temperature which is even lower than halon 1301, viz. about 5 ar. This entails that the dependence on tanks pressurized with gaseous propellant such as nitrogen is even greater for such fire extinguishing media as FM 200 than for halon.
  • a premature release of such a container i.e., before the desired pressure has been reached, may have adverse effects.
  • a fluid such as a fire extinguishing medium having a vapor pressure above atmospheric pressure is having a disproportionately low operating pressure, this may cause the formation of two-phase currents and thereby gas pockets and disturbances in the flow situation.
  • a further object is to provide solutions which make possible the replacement of halon by alternative fire extinguishing media without requiring large, costly and time-consuming replacements of the whole fire 5 extinguishing system.
  • valve for a container for powder or fluid
  • the valve comprises a valve housing having an
  • valve in one end position blocks the flow of powder or fluid between inlet and outlet whereas the piston in its other end position unblocks the flow
  • valve further comprises an inlet for supplying a gaseous propellant to the container and that the piston is displaced from the position in which it blocks the flow to an open position in response to the pressure of the gaseous propellant at the inlet for the gaseous pro ⁇ pellant.
  • Figure 1 is a longitudinal section of an embodiment of the valve according to the invention, in a closed position.
  • Figure 2 is a longitudinal section of the same embodiment as '5 shown in Figure 1, in an intermediate position.
  • FIG. 4 is an exploded longitudinal section of the em ⁇ bodiment shown in Figures 1, 2 and 3.
  • Figure 5 is a diagram of a typical fire extinguishing system including a valve according to the present invention. 5
  • Figure 6 is a longitudinal section of another embodiment of the valve according to the invention, in an intermediate position.
  • Figure 11 is a variant of the embodiment shown in Figure 10, having fluidization channel for powder use.
  • FIG. 12 is a perspective view of a partly cut-through model of the embodiment shown in Figure 10.
  • valve according to the invention is shown in various embodiments which have a somewhat different design based on '5 the same technical idea.
  • All valves are constructed with an external housing 11 having an interior, preferably rotation-symmetrical cavity 24, an inlet 10 for gaseous propellant, an outlet 20, mean;- for 0 connection to the container 1, and preferably a bottom piece 16.
  • the central tube 15 is preferably cylindrical having a diameter which is less than that of the cavity 24, the central tube 15 and the cavity 24 having coinciding axes.
  • the center portion 14 may be screwed firmly into the housing 11 and the bottom portion 16 by bolts 18, as shown in Figure 1, tightly fitted together and locked with a locking ring 26, as shown in Figure 6, or 5 screwed together as shown in Figure 10.
  • the discharge tube 3 is secured to the center piece 14 by pressure, screws, etc. so that the bore 27 becomes a natural extension of the cavity of the discharge tube 3.
  • the central tube 15 is closed at the top, but one or more center outlet(s) 23 are formed through the tube wall in approxima ⁇ tely the same height as the outlet 20 of the housing 11.
  • the piston 12 is the only movable part of the valve and moves in the longitudinal direction of the valve in the interior cavity 24 of the housing 11.
  • the piston 12 is preferably cylindrical and has a rotationally symmetrical central chamber 22, the diameter of which is adapted to the central tube 15.
  • the outer diameter of the piston 12 is largely adapted to the inner diameter of the interior cavity 24 so that no gas can pass between the exterior of the piston and the inside wall of the housing when the piston 12 is in its upper position.
  • the gaskets for example in the form of 0- rings 19, give additional seal against gas leakage.
  • the embodiments of the valve shown in respectively Figure 1, and Figures 6 and 10 show two methods for achieving this.
  • the piston 12 has the same diameter through its whole length so that the space between the piston and housing is obtained by an extension of the diameter of the interior cavity 24.
  • both the piston 12 and the cavity 24 have approximately the same diameter through most of their length.
  • the cavity 24 and piston 12 have smaller diameters adapted to each other so that a gas flow between the cylinder wall and the wall in the housing is prevented.
  • the outlet(s) 26 is/are also moved down along the inside wall of the valve housing 11.
  • the gaseous propellant is able to flow down along the piston to the hollow or extension 25, a circumstan ⁇ ce which opens up for flow of gaseous propellant from inlet 10, through the channel for gaseous propellant 13, into the space between the central tube 15 and the valve housing 11, through the bore 17 and to the interior of the container 1.
  • the gaseous propellant then flows into the container 1 and supplies operating pressure in the container 1.
  • the piston 12 is moved further down by the gaseou ⁇ propellant until it strikes the center piece 14.
  • the outlet 20 is opened as the piston outlet 21 gradually opens the connection between the center outlet 23 and outlet 20.
  • the piston outlet 21 is aligned with the center outlet 23 and outlet 20.
  • both the inlet aperture 10 and the outlet aperture are open at their maximum for supply of gaseous propellant, respectively, discharge of contents.
  • the valve does not close again until the gaseous propellant is shut off, either because the tank 7 of gaseous propellant is empty or because the release valve 8 is closed.
  • the hollow or extension 25 may either be hollows adapted to the radial positioning of the outlet( ⁇ ) of the gaseous propellant channel(s) 13 or be a more general extension of the diameter of the central chamber 22, shown in the drawings .
  • Figures 2, 6 and 10 show embodiments of the valve in the intermediate position, where the valve is open for gaseous propellant through aperture 10 but where outlet 20 still is closed.
  • the piston does not stop in this position, but the time elapsing from the depicted intermediate position until the outlet 20 is opened is sufficient for the gaseou ⁇ propellant to flow from tank 7 of gaseou ⁇ propellant and accumulate the necessary pressure above the contents 2 in the container 1.
  • valve housing 11 where al ⁇ o the central chamber 22 and the piston 12 is cylindrical.
  • the center outlets 23 be connected by means of tracks 29 encircling the exterior of the central tube 15, and that the piston outlets 21 be connected by means of tracks 30 which similarly encircle the piston.
  • the outlet 26 of the gaseous propellant channel 13 may be designed as an annular track, and the bores 17 be connected with tracks 33 ensuring that the gas from the gas channel may flow freely to the bores 17.
  • the present valve will also function as a reduction valve and thereby ensure that the operating pressure of the installation will be correct.
  • the present valve may also be used to modulate the flow from the container by means of the pressure from the gaseou ⁇ propellant.
  • a reduction in the pressure of the gaseous propellant will immediately raise the piston 12 somewhat above its lower position and thereby confine the area of outward flow.
  • the response of the valve to such a regulation of ga ⁇ eou ⁇ propellant pre ⁇ ure might be pre ⁇ et both for providing a linear and a non-linear re ⁇ pon ⁇ e to the outward flow in relation to regulations of gaseous propellant pre ⁇ sure.
  • Powder such as a fire extinguishing powder
  • Powder may be difficult to force through a tube, particularly since it will become more compact while stored. It may be desirable or necessary to fluidize or stir up the powder before discharge. This may be carried out through a modification of the present valve, shown in Figures 9 and 11.
  • the fluidization is here achieved in that a part of the gaseous propellant, for a brief period during the downward movement of the piston 12, passes from the gaseous propellant channel 13, through the fluidization channel 31, into the center outlet 23, down the bore 27, and down through the discharge tube 3. This brief pulse of gaseous propellant ensures that the powder be fluidized so that it can flow out through the discharge tube and valve.
  • the present valve only has one movable part, the piston 12, reduces the possibility of malfunction and makes It simple and robust.
  • the bottom part 16 of the valve may be omitted since the valve housing 11 may be secured directly to the container 1.
  • the depicted em ⁇ bodiments are preferred for technical reasons related to production and use.
  • Figure 5 show ⁇ ⁇ che atically the part ⁇ of a fire extin ⁇ guishing ⁇ y ⁇ tem where the valve according to the invention is used.
  • the ⁇ ystem corre ⁇ pond ⁇ in its main features to a traditional halon ⁇ ystem in which a gaseou ⁇ propellant, for example nitrogen, i ⁇ supplied, quite apart from the fact that such a traditional system i ⁇ continuously under pre ⁇ ure from the container 7 of gaseous propellant.
  • the tank 1 and the tube network 5 are the same as in a traditional halon system.
  • the changed physical properties of the replacement medium, the alternative fire extinguishing medium, in relation to halon will in general necessitate a replacement of nozzles 6, which is a simple and relatively inexpensive process and independent of the present invention.
  • the fire extinguishing medium 2 is poured into the container wherein it primarily exists in a liquid phase.
  • the discharge 13 tube 3 extends from the valve 5 on the top of the container down to the fire extinguishing medium 2 and has its aperture near the bottom of tank 1.
  • the vapor pressure of the fire extinguishing medium FM 200 is, for example, about 5 bar at 20°C.
  • the pressure in the tank 1 is thus considerably lower than in a traditional halon installation, and reduces the possibility of losing fire extinguishing medium through leakage. However, this pressure is too low to ensure that the fire extinguishing medium i ⁇ expelled at ⁇ ufficient velocity when the system is released, a circumstance which necessitates a supply of gaseous propellant.
  • the supply of gaseou ⁇ propellant from the tank 7 of gaseous propellant is regulated by the release valve 8, which can be released either manually or by remote control.
  • the release valve 8 the gaseous propellant flows from the gaseou ⁇ propellant container 7 through the gaseous propellant line 9 through an opening in a valve 4, which i ⁇ a valve according to the invention.
  • the ga ⁇ eou ⁇ propellant which enters the inlet 10, pre ⁇ e ⁇ again ⁇ t the top of the pi ⁇ ton 12 and forces this down again ⁇ t the opposing vapor pressure of the contents of the container 1 and, optionally, a re ⁇ ilient member 28.
  • the valve 4 opens, a ⁇ described above, first for the ga ⁇ eou ⁇ propellant by the movement of the pi ⁇ ton down the valve 4. Thereafter the valve also opens for outlet 20 so that the fire-extinguishing medium is forced up through the discharge tube 3 and bore 27, out through outlet 20, into the dis ⁇ tribution tube network 5, and out through the nozzles 6.
  • this fire extinguishing installation except for valve 5 and nozzles 6, is like a traditional halon installation, also in its dimensions, means that the present valve advantageously may be used upon replacement of the fire extinguishing medium in an existing installation, and, similarly, that a new installation may be built without necessitating an increase in dimensions in relation to a traditional halon installation.
  • channel ⁇ may vary from one area of application to another.
  • resilient member 28 may have a plurality of alternative positions.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Mechanical Engineering (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Magnetically Actuated Valves (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Temperature-Responsive Valves (AREA)

Abstract

Soupape pour un récipient (1) de poudre ou de fluide (2). Cette soupape comprend un logement (11) doté d'un orifice d'entrée pour la poudre ou le fluide, de préférence raccordé à un tube de décharge (3), et un orifice de sortie (20) pour ladite poudre ou ledit fluide, un piston (12) étant monté dans une cavité interne (24) du logement de façon à être déplacé dans le sens longitudinal de ladite soupape entre deux positions terminales. Dans une position terminale, le piston (12) interrompt l'écoulement de la poudre ou du fluide entre les orifices d'entrée (35) et de sortie (20), tandis que, dans sa seconde position terminale, le piston (12) permet l'écoulement de la poudre ou du fluide. L'invention est caractérisé en ce que la soupape comprend en outre un orifice d'entrée (10) permettant d'alimenter le récipient (1) en un gaz propulseur, et en ce que le piston (12) est déplacé entre la position dans laquelle il interrompt l'écoulement et une position ouverte en réaction à la pression du gaz propulseur à l'orifice d'entrée (10) dudit gaz.
PCT/NO1995/000201 1994-11-02 1995-11-02 Soupape combinee pour le remplissage et le vidage WO1996014104A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU38834/95A AU3883495A (en) 1994-11-02 1995-11-02 Combination valve for filling and emptying purposes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO944180A NO180223C (no) 1994-11-02 1994-11-02 Ventil
NO944180 1994-11-02

Publications (1)

Publication Number Publication Date
WO1996014104A1 true WO1996014104A1 (fr) 1996-05-17

Family

ID=19897588

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1995/000201 WO1996014104A1 (fr) 1994-11-02 1995-11-02 Soupape combinee pour le remplissage et le vidage

Country Status (3)

Country Link
AU (1) AU3883495A (fr)
NO (1) NO180223C (fr)
WO (1) WO1996014104A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2317754B (en) * 1996-09-26 2001-01-17 Smiths Industries Plc Electrical connector assemblies
DE10218923A1 (de) * 2001-11-24 2003-09-11 Bundesamt Fuer Wehrtechnik Und Durch Druck eines Fluids auslösbares Ventil für Brandunterdrückungsanlagen
DE10257718A1 (de) * 2002-12-11 2004-07-08 Hydac System Gmbh Feuerlöschanlage
GB2431455A (en) * 2005-10-22 2007-04-25 Derek Gordon Jones Fire extinguisher valve
WO2009154801A3 (fr) * 2008-06-20 2010-04-01 Graco Minnesota Inc. Valve de retenue de joint pour dispositif de mesure de débit de fluide
WO2014012686A2 (fr) * 2012-07-19 2014-01-23 Siemens Aktiengesellschaft Dispositif de propulsion d'un mélange diphasique
DE102014117022A1 (de) * 2014-11-20 2016-05-25 CSI Cargo-Safety-Innovations UG (haftungsbeschränkt) Löschsystem und Verfahren zum Betreiben

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2819764A (en) * 1956-04-05 1958-01-14 Specialties Dev Corp Fire extinguishing apparatus
GB2161586A (en) * 1984-07-11 1986-01-15 Target Rock Corp Pressure responsive, pilot actuated, modulating valve
WO1994014502A1 (fr) * 1992-12-22 1994-07-07 Sundholm Goeran Installation d'extinction d'incendie

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2819764A (en) * 1956-04-05 1958-01-14 Specialties Dev Corp Fire extinguishing apparatus
GB2161586A (en) * 1984-07-11 1986-01-15 Target Rock Corp Pressure responsive, pilot actuated, modulating valve
WO1994014502A1 (fr) * 1992-12-22 1994-07-07 Sundholm Goeran Installation d'extinction d'incendie

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2317754B (en) * 1996-09-26 2001-01-17 Smiths Industries Plc Electrical connector assemblies
DE10218923A1 (de) * 2001-11-24 2003-09-11 Bundesamt Fuer Wehrtechnik Und Durch Druck eines Fluids auslösbares Ventil für Brandunterdrückungsanlagen
DE10218923B4 (de) * 2001-11-24 2004-05-13 Bundesamt für Wehrtechnik und Beschaffung Durch Druck eines Fluids auslösbares Ventil für Brandunterdrückungsanlagen
DE10257718A1 (de) * 2002-12-11 2004-07-08 Hydac System Gmbh Feuerlöschanlage
DE10257718B4 (de) * 2002-12-11 2005-11-24 Hydac System Gmbh Feuerlöschanlage
GB2431455A (en) * 2005-10-22 2007-04-25 Derek Gordon Jones Fire extinguisher valve
GB2431455B (en) * 2005-10-22 2007-12-19 Derek Gordon Jones Fluid container with fluid release valve
WO2009154801A3 (fr) * 2008-06-20 2010-04-01 Graco Minnesota Inc. Valve de retenue de joint pour dispositif de mesure de débit de fluide
US8240507B2 (en) 2008-06-20 2012-08-14 Graco Minnesota Inc. Seal-retaining valve for fluid metering device
WO2014012686A2 (fr) * 2012-07-19 2014-01-23 Siemens Aktiengesellschaft Dispositif de propulsion d'un mélange diphasique
WO2014012686A3 (fr) * 2012-07-19 2014-10-23 Siemens Aktiengesellschaft Dispositif de propulsion d'un mélange diphasique
DE102014117022A1 (de) * 2014-11-20 2016-05-25 CSI Cargo-Safety-Innovations UG (haftungsbeschränkt) Löschsystem und Verfahren zum Betreiben

Also Published As

Publication number Publication date
NO944180L (no) 1996-05-03
AU3883495A (en) 1996-05-31
NO180223B (no) 1996-12-02
NO180223C (no) 1997-03-12
NO944180D0 (no) 1994-11-02

Similar Documents

Publication Publication Date Title
EP0402425B1 (fr) Procede et appareil pour la dispersion fine de liquides ou de poudres dans un milieu gazeux
US4154378A (en) Metering valve for pressurized container
CA2638173C (fr) Dispositif pour l'extinction d'incendies pourvu d'un recipient contenant une substance d'extinction d'incendies et bouteille a gaz comprime correspondante
US4858788A (en) Dispensing device for dispersing liquid from a container
US5531627A (en) Cartridge-type water bomb water gun conversion device
RU2289536C2 (ru) Устройство, регулирующее давление в сосуде для распыления под давлением
JP5674813B2 (ja) ２−フェーズ流動調節装置及び２−フェーズ流動基盤の携帯用アトマイザー
PL194433B1 (pl) Pojemnik z urządzeniem regulacyjnym ciśnienia, urzadzenie regulacyjne cisnienia, sposób przygotowania pojemnika do dozowania płynu, zastosowanie pojemnika i urządzenia regulacyjnego ciśnienia
GB2153010A (en) Pressurised dispensing container
WO1996014104A1 (fr) Soupape combinee pour le remplissage et le vidage
EP0826608A1 (fr) Mécanisme de pulvérisation pour un produit aérosol
EP1175248A1 (fr) Extincteur par nebulisation d'un liquide
US4854388A (en) Fire extinguishing apparatus
CN101194122A (zh) 用于灭火过压力预防的气动式流量控制阀
JPH04501844A (ja) チェックバルブ
FI111521B (fi) Palonsammutuslaitteisto
JP5368431B2 (ja) バルブ及びディスペンサ
US5529525A (en) Water bomb - mounted water gun
US5487850A (en) Gas control valve
US5348059A (en) Multi function refill adaptor for gas operated airguns
WO2000076588A1 (fr) Lance-cable pneumatique portable
EP0807226B1 (fr) Dispositif de decharge et de remplissage destine a une bouteille a gaz
EP0811563A1 (fr) Valve pour récipients préssurisés
JP3073724B2 (ja) 小型圧力容器における安全弁装置
GB2282855A (en) Aerosol spray mechanism

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU IS JP KE KG KP KR KZ LK LR LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TT UA UG US UZ VN

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase