EP0142730A2 - Dispositif de remplissage de bouteilles à gaz sous pression - Google Patents

Dispositif de remplissage de bouteilles à gaz sous pression Download PDF

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Publication number
EP0142730A2
EP0142730A2 EP84112732A EP84112732A EP0142730A2 EP 0142730 A2 EP0142730 A2 EP 0142730A2 EP 84112732 A EP84112732 A EP 84112732A EP 84112732 A EP84112732 A EP 84112732A EP 0142730 A2 EP0142730 A2 EP 0142730A2
Authority
EP
European Patent Office
Prior art keywords
refill device
pressure
pressure body
heat protection
cooling fins
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.)
Granted
Application number
EP84112732A
Other languages
German (de)
English (en)
Other versions
EP0142730B1 (fr
EP0142730A3 (en
Inventor
Marco Dr. Vasella
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.)
Rothenberger Werkzeugemaschinen GmbH
Original Assignee
Rothenberger & Co Werkzeuge-Maschinen KG GmbH
Rothenberger Co GmbH
Rothenberger Werkzeugemaschinen GmbH
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
Priority claimed from DE19833342014 external-priority patent/DE3342014A1/de
Priority claimed from DE19848430245 external-priority patent/DE8430245U1/de
Application filed by Rothenberger & Co Werkzeuge-Maschinen KG GmbH, Rothenberger Co GmbH, Rothenberger Werkzeugemaschinen GmbH filed Critical Rothenberger & Co Werkzeuge-Maschinen KG GmbH
Priority to AT84112732T priority Critical patent/ATE40196T1/de
Publication of EP0142730A2 publication Critical patent/EP0142730A2/fr
Publication of EP0142730A3 publication Critical patent/EP0142730A3/de
Application granted granted Critical
Publication of EP0142730B1 publication Critical patent/EP0142730B1/fr
Expired legal-status Critical Current

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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
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
    • 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
    • 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
    • F17C2205/0341—Filters
    • 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
    • F17C2221/011—Oxygen
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/04—Methods for emptying or filling
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure

Definitions

  • the invention relates to a refill device for pressurized gas cylinders with a connecting thread and valve, in particular for small gas cylinders with a filling volume of less than 1000 ml and a permissible filling pressure up to about 34 bar, by means of a flammable, in the burning state oxygen-releasing, mantle-free cartridge, with a cartridge holder receiving the cartridge , from the interior of which the oxygen can be transferred to the compressed gas bottle.
  • Gas generators with a mixture of chemical compounds from which oxygen is released through an exothematic reaction have long been known.
  • it is a mixture of an alkali metal chlorate or perchlorate and an oxidizable substance which, when burned after an ignition process, provides just enough heat to cause the reaction to proceed at an approximately constant rate of migration in the cartridge, continuously releasing excess oxygen becomes.
  • the reaction mixture forms a solid, pressed body, namely the cartridge mentioned.
  • the temperature in the reaction zone is about 6S0 ° C.
  • the aforementioned US Pat. No. 3,573,001 also discloses a pressure vessel with a storage volume and an inner cartridge holder, in which a plurality of cartridges, each with its own electrical ignition mechanism, are arranged.
  • the individual cartridges are gradually ignited by a pressure gauge in accordance with the pressure drop. So that the burning process does not continue uncontrolled by all cartridges, each individual cartridge must be surrounded by its own jacket made of heat-insulating material.
  • This known device is also not suitable as a refill device for compressed gas cylinders, since in the event of a pressure equilibrium, which is possible at most, a considerable part of the oxygen would remain in the storage volume.
  • the device mentioned is already extremely complicated with regard to the built-in, step-by-step ignition mechanism.
  • a refill device of the type described above is known, which is however intended for larger compressed gas cylinders.
  • the cartridge holder is located inside the container, which is designed as a pronounced compressed gas bottle, and has the shape of a tube that is open on one side, the interior of which constantly communicates with the compressed gas bottle.
  • This cartridge holder is loaded with uncoated cartridges, whereby it does not matter how large the storage volume surrounding the cartridges is, since this storage volume absorbs all of the released oxygen.
  • the known device is correspondingly voluminous and, in its entirety, is not suitable for refilling smaller compressed gas cylinders.
  • the above-described oxygen generators all have a common disadvantage: the amount of oxygen remaining under a residual pressure is lost when the cartridge is changed, and the pressure vessel fills with ambient air, which consists of approximately 80% nitrogen. If the pressure vessel and re-charged substance removed during firing of the cartridge oxygen I, the nitrogen content gradually decreases, which of course for the use of oxygen in admixture with a fuel gas for the formation of the flame is very annoying. When gas is withdrawn after the end of combustion, the gas composition is of course homogeneous; however, the high flame temperatures cannot be achieved due to the nitrogen content, as with pure oxygen. The greater the volume of the pressure vessel compared to the cartridge volume, the greater the disadvantage.
  • the invention is based on the object of specifying a refill device of the type described at the outset, with which compressed gas cylinders, in particular standardized or standardized small gas cylinders, can be refilled to the highest possible pressure with the purest possible oxygen and the lowest possible oxygen losses.
  • the cartridge holder is designed as a pressure body which is as closely surrounding the cartridge as possible and which is closed on all sides and which has a counter thread for screwing the pressure body onto the pressure gas bottle externally and a pressure gas channel through the counter thread for has the overhead line of oxygen in the compressed gas bottle.
  • the constructive instruction to design the cartridge holder as a pressure body which is closed on all sides which is, for example, in contrast to US Pat. No. 3,573,001 and DE-OS 24 61 681, means that the oxygen cannot escape into the environment of the cartridge holder in an uncontrolled manner. The release of oxygen is therefore initially limited to the volume of the pressure body.
  • one of the most common oxygen-emitting cartridges has a diameter of 2.7 cm and a length of 11.7 cm.
  • the volume is therefore approx. 67 cm 3 .
  • the pressure loss is also only about 10%, since the volume of the compressed gas bottle is only increased by a maximum of 10% with respect to the amount of oxygen released.
  • small gas cylinders on the market are supplied with a filling pressure of approximately 34 bar.
  • the cartridge described above contains an average of about 30 liters of oxygen at normal pressure, so that small gas cylinders of this type can be refilled to a pressure of up to 34 bar.
  • the nitrogen content is less than 3%.
  • the pressurized gas channel within the mating thread is also in contrast to DE-OS 24 61 681 and not only enables the refill device to be removed from the pressurized gas bottle, but also enables the pressurized gas bottle to be closed by means of the check valve located in its connecting thread. After separating the refill device and the compressed gas bottle, only the small amount of oxygen present in the refill device then escapes.
  • the refill device With the refill device according to the invention, it is possible for the user of a compressed gas bottle to refill it himself quickly and cheaply, even on Sundays and public holidays, i.e. the typical "home improvement days".
  • the cartridges can be safely stored in large quantities without moisture.
  • the price for the refill is about 20% of the price of a new filled gas cylinder.
  • the oxygen companies charge high fees for the cycle of the bottles. While refilling itself is cheap, transportation and administration are very expensive.
  • Refilling existing compressed gas cylinders is also environmentally friendly, since a large number of the empty compressed gas cylinders no longer end up in the garbage.
  • the spent cartridges themselves consist of harmless salts, especially table salt, and oxides of the flammable component. The used cartridges therefore pose no danger to the environment.
  • the compressed gas bottles refilled with the subject matter of the invention serve in conjunction with a fuel gas bottle for welding and brazing with small and smallest torches down to the micro torch.
  • the subject of the invention is suitable for all kinds of handicraft work, goldsmith work, for model making and repair work in the field of refrigeration technology and for work in dental laboratories.
  • the pressure body is designed as a tubular combustion housing which has at one end the counter thread for the connecting thread of the compressed gas bottle.
  • the pressure body can be equipped with a pressure gauge.
  • such a refill device has the shape of a handle which - fitted with the burning cartridge - can be screwed onto the compressed gas bottle quickly and reliably. Since the connection to the pressurized gas bottle is established, the pressure gauge automatically shows not only the pressure in the pressure body, but also the practically identical pressure in the pressurized gas bottle. On this occasion, it would be immediately determined whether, for example, the refill device has been screwed onto a possibly still partially filled compressed gas bottle, so that the pressure at the end of the burning process would assume correspondingly higher values.
  • the usual compressed gas cylinders are designed with a view to corresponding overpressures.
  • the pressure body is provided with cooling fins over at least part of its length. This considerably lowers the maximum temperature at the end of the firing process and considerably shortens the time until the refilling device is used again.
  • the pressure body is particularly advantageous to provide with heat protection over at least part of its length.
  • the heat protection is particularly expediently made of a heat-insulating material, which in fact reduces the amount of heat given off to the surroundings, but at the same time enables safe handling after the firing process has ended.
  • the heat protection can also contribute to heat dissipation, namely if it is provided with a corresponding surface profile. This surface profile can preferably consist of longitudinal ribs, which improves the grip of the device.
  • the outer surfaces of the parts forming the pressure body form a polygon in cross-section in the region of the cooling fins, preferably a hexagon, and if the grooves lying between the cooling fins have a groove base which is circular in cross-section.
  • the pressure body can be made from prismatic rod material by providing two rod sections of approximately the same length, each with a blind hole that has an inner diameter of approximately 30-32 mm, that is, tightly encloses the shell-less cartridge with smooth, metallic inner walls. There is therefore no porous insulation or filter material between the cartridge and the pressure body, which would uselessly increase the internal volume.
  • the prismatic outer surface serves in particular to prevent the heat protection, which will be explained in more detail below, from twisting.
  • this heat protection consists of a hollow body provided with ventilation openings, which is pushed onto the cooling fins of the pressure body in such a way that the ventilation openings communicate with the grooves between the cooling fins, in particular, are flush with them in the radial direction.
  • the heat protection consists of a plurality of rings which are arranged coaxially one behind the other and connected to one another on the circumference by axially parallel webs.
  • the webs which are arranged in an equidistant distribution of 90 degrees, and the rings mentioned then enclose the ventilation openings between them.
  • a basket-like structure made of a heat-resistant insulating material is created, through which the heat-exchanging surfaces of the pressure element through the ventilation openings as freely as possible with the atmosphere in Ver bond to promote heat exchange through radiation and convection.
  • the outer envelope surface of all the rings is preferably a cylindrical surface, while the inner envelope surface of the rings and possibly the axially parallel webs are complementary to the pressure body, at least at the corners of the cooling fins, so that the heat protection can be pushed onto the respectively associated part of the pressure body.
  • the groove base between the cooling fins is at a distance from the webs. Such a measure allows the cooling air to flow freely behind the webs around the pressure body for the purpose of heat exchange, so that heating is reduced to a minimum.
  • the two parts of the pressure body each have approximately half the length of the pressure body, and if the two heat protection bodies are of identical design and abut one another with their open end faces approximately in the middle of the pressure body.
  • the heat protection is provided with radially projecting handles in the manner of wing nuts. Due to the form-fitting prismatic gripping of the heat protection, the two parts of the pressure body can be firmly against each other screw and separate from each other after the flame cut even if the threaded connection between the two pressure body parts should have become a little stiff due to the heat.
  • the invention is not limited to use in small gas cylinders.
  • An advantageous application is their attachment to a compressed gas bottle, which can also have a larger volume (5 liters and above), such a compressed gas bottle having, besides its connection thread for the refilling device, a connector for a sampling line and a check valve which opens in the direction of the compressed gas bottle .
  • the refill device has the function of an entry lock for the originally solid (bound) and then gaseous oxygen.
  • a pressure body 1 which consists of two sleeve-shaped, detachable parts 2 and 3, of which part 2 is referred to as a combustion housing and part 3 as a filter housing.
  • the two parts 2 and 3 are connected to one another by a threaded connection 4, which is made gas-tight by means of an annular seal 5.
  • the two parts 2 and 3 have end walls 6 and 7, respectively.
  • the threaded connector 8 of a pressure gauge 9 is screwed into the end wall 6, to which a connecting channel 10 shown only in broken lines leads.
  • a connecting channel 10 shown only in broken lines leads.
  • a flat gasket 15 is used for sealing.
  • a concentric valve pin 16 which is provided with a coaxial gas bore 17, is arranged in the connecting part 12 coaxially with the top nut 13.
  • a filter 18 made of a sintered material is also arranged.
  • the valve pin 16 interacts with the check valve present in the pressurized gas bottle, namely this valve is opened when the union nut 13 is screwed on and closed when the entire device is removed, so that the oxygen present in the pressurized gas bottle does not come into play without the removal fitting belonging to the pressurized gas bottle can escape.
  • the two parts 2 and 3 of the pressure body 1 enclose an inner space 19, which serves to hold the described oxygen-releasing, jacketless cartridge 20 and encloses it with a very narrow gap distance.
  • the reactive mixture consists of the following components:
  • Cartridges of this type are commercially available, for example, under the name "SOLIDOX".
  • the cartridge 20 rests on a spacer 21, the side of which facing away from the cartridge 20 faces a filter chamber 22 with filter material 23.
  • a layering of chamotte granulate and rock wool can serve as filter material, for example.
  • the compressed gas channel 11 opens into the filter chamber 22 in the manner shown in the figure, so that the oxygen released must pass through the filter material 23.
  • the spacer holds the cartridge 20 at a certain distance from the end wall 7, so that the heat input into the compressed gas bottle is greatly reduced.
  • Part 3 i.e. the filter housing is provided with a multiplicity of cooling fins 24, by means of which the heat dissipation to the surroundings is markedly improved.
  • Part 2 i.e. the combustion housing is provided over its entire length with a heat protection 25, which consists of a heat-insulating material with high temperature resistance.
  • This heat protection 25 is provided with a surface profile 26, which is formed by circumferential grooves, but can also be replaced by axially parallel grooves in order to improve the grip of the device.
  • Below the ring seal 5, the heat protection 25 is provided with a recess 27 in order to enable heat exchange with the cooling fins 24 at this point.
  • the device according to the invention is extremely compact and therefore also suitable as a typical DIY device.
  • FIG. 2 the same parts as in FIG. 1 are provided with the same reference symbols.
  • the parts 2 and 3 of the pressure body 1 are provided with cooling fins 24 over practically their entire length.
  • the parts 2 and 3 are each surrounded by a heat shield 25a and 25b, each of which consists of a 39 plurality of coaxially arranged one after another rings on the periphery by axially parallel webs 40 and 41 to one another - are connected.
  • ventilation openings 42 are formed between the rings 39 and the webs 40 and 41, which are delimited by parallel walls of the rings 39 and form a kind of sector-shaped slots.
  • the rings 39 are aligned with the cooling fins 24, so that the grooves 43 between the cooling fins 24 communicate freely with the atmosphere.
  • each heat protection 25a and 25b is provided with radially projecting handles 44 which give the heat protection the properties of a "wing nut".
  • the handles 44 are arranged on the diametrically opposite webs 40, while between these webs 40, which are provided with handles, the further webs 41 are also offset by 90 ° and arranged diametrically opposite one another.
  • the connecting part 12 is also provided with a pressure relief valve 45 of a conventional type. Should the unlikely event occur that the gas bore in the valve pin 16 is blocked in any way, the pressure relief valve 45 speaks on time. It can also be seen that the gas emerging from the pressure relief valve must first flow through the filter chamber 22, so that the seat of the pressure relief valve 45 is protected against the deposition of solids.
  • FIGS. 3 and 4 show the parts from which the pressure body 1 is composed.
  • the parts 2 and 3 are made from a hexagonal rod into which grooves 43 with a cylindrical groove base 43a are pierced in an equidistant distribution, as a result of which the cooling fins 24 are formed.
  • the part 2 serving as a combustion housing has an internal thread 4a
  • the part 3 serving as a filter housing has a complementary external thread 4b, which together form the threaded connection 4 (FIGS. 1 and 2). Only in the area of the threaded connection 4, the grooves 43b have a smaller depth.
  • the threaded hole 6a provided in the end wall 6 serves to screw in the pressure gauge 9.
  • the threaded hole 7a provided in the end wall 7 serves to screw in the connecting part 12 according to FIG. 7.
  • the part 3 serving as a filter housing also has an annular shoulder 48 which serves to support the spacer 21 according to FIG. 8.
  • the filter chamber 22 connects to this annular shoulder 48.
  • Figures 5 and 6 show the heat protection 25a (or 25b) in plan view of its longitudinal axis A-A or in section along the diametrical line VI-VI. It can be seen in particular in FIG. 6 that the axially parallel webs 40 and 41 have angular distances of 90 ° to one another and that the handles 44 are integrally formed on the diametrically opposite webs 40.
  • the cross section of the outer envelope surface of the cooling fins 24 is indicated by dash-dotted hexagon. It can be seen that the rings 39 and the webs 41 are formed at the corners of this hexagon complementary to the cooling fins, so that a positive connection in the circumferential direction is formed between the heat protection 25a and the respectively associated part of the pressure body 1.
  • the heat protection 25a can be easily pushed onto the pressure body 1.
  • the rings 39 have an arcuate shape outside the prismatic recesses, namely in the region 39a, so that they do not come into contact with the cooling fins 24 at a total of 6 locations. In this way, not only is the thermal contact between the cooling fins and the heat protection additionally reduced, but also the ventilation of the prismatic outer surfaces of the cooling fins is additionally improved.
  • the ventilation openings 42 are delimited by the webs 40 and 41 on the one hand and by the rings 39 on the other hand, that is to say form sector-shaped gaps delimited by plane-parallel walls.
  • the thickness of the rings 39 and the width of the ventilation openings 42 in the direction of the axis AA are each 5 mm.
  • the cylindrical groove base 43a is indicated by a dash-dotted circle, and it can be seen that there is a sufficient radial distance between this groove base and the webs 40 and 41, which all-round ventilation of the pressure body in the area of Groove base enables.
  • the heat protection 25a has in the region of the handles 44 an end wall 49 with a bore 50, which is used optionally for screwing in the threaded connector 8 of the pressure gauge 9 or the connecting part 12. After these parts have been screwed in, the heat protection 25a or 25b is in each case also immovably fixed in the axial direction on the associated part of the pressure element 1.
  • FIG. 6 shows that the heat protection can be easily removed from a complementary injection mold by placing the parting line of the mold in the direction of a plane of symmetry running through the handles 44.
  • the mold can then only consist of two mold halves without movable insert parts and a mold core.
  • FIG. 7 shows, on an enlarged scale, the connecting part 12 according to FIG. 2 with the compressed gas channel 11 and the counter thread 14.
  • the compressed gas channel 11 is from surrounded an external thread 51 which can be screwed into the threaded bore 7a of the pressure body part 3.
  • an internal thread 52 which is used for screwing in the valve pin 16.
  • a threaded bore 53 runs radially to the compressed gas channel 11 and is used for screwing in the pressure relief valve 45 and has a valve seat 54 for the pressure relief valve 45 at the bottom of the bore.
  • FIG. 8 shows a plan view of the spacer 21, which is designed as a circular disk and is provided with radial edge notches 55 which extend radially further inwards than the annular shoulder 48 in FIG. 4, on which the spacer 21 is placed. This measure enables an unimpeded entry of the oxygen into the filter chamber 42.
  • the pressure body 1 is connected by means of the connection part 12 or the union nut 13 to a connection thread 28 which belongs to a compressed gas bottle 29.
  • the connecting thread 28 is connected to the compressed gas bottle via a pipeline 30, in which a check valve 31 is located.
  • This is provided with a pressure reducing valve 32 and a downstream connecting piece 33, to which an extraction line 34 is connected, which leads to a gas consumer (burner).
  • the pressure that can be set at the outlet of the pressure reducing valve via a handwheel 36 is displayed by a pressure meter 35.
  • the pressure body 1 is detachably connected to the pressure gas bottle 29 via a holding device 37. Through a pressure relief valve 38, which is used to drain any condensed water from Can be manually ventilated, the device is protected against excessive gas pressures.
  • the apparatus operates in such a way: the pressure body 1, after unscrewing the combustion casing 2 with a ezündeten g to cartridge 20 ( Figure 1) and closed again.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP84112732A 1983-11-22 1984-10-23 Dispositif de remplissage de bouteilles à gaz sous pression Expired EP0142730B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84112732T ATE40196T1 (de) 1983-11-22 1984-10-23 Nachfuellvorrichtung fuer druckgasflaschen.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3342014 1983-11-22
DE19833342014 DE3342014A1 (de) 1983-11-22 1983-11-22 Nachfuellvorrichtung fuer druckgasflaschen
DE19848430245 DE8430245U1 (de) 1984-10-15 1984-10-15 Nachfuellvorrichtung fuer druckgasflaschen
DE8430245U 1984-10-15

Publications (3)

Publication Number Publication Date
EP0142730A2 true EP0142730A2 (fr) 1985-05-29
EP0142730A3 EP0142730A3 (en) 1986-07-16
EP0142730B1 EP0142730B1 (fr) 1989-01-18

Family

ID=25815766

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84112732A Expired EP0142730B1 (fr) 1983-11-22 1984-10-23 Dispositif de remplissage de bouteilles à gaz sous pression

Country Status (3)

Country Link
US (1) US4628970A (fr)
EP (1) EP0142730B1 (fr)
DE (1) DE3476249D1 (fr)

Cited By (1)

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EP0223946A2 (fr) * 1985-10-31 1987-06-03 Rothenberger Werkzeuge-Maschinen Gmbh Générateur d'oxygène consistant en un conteneur sous pression et un appui pour la cartouche pour obtenir des cartouches à oxygène inflammable

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GB2220056A (en) * 1988-06-25 1989-12-28 Graviner Ltd Fluid flow control arrangement
US5462099A (en) * 1994-01-28 1995-10-31 S. C. Johnson & Son, Inc. System and method for pressurizing dispensing containers
JP4492310B2 (ja) * 2004-11-25 2010-06-30 日立工機株式会社 燃料ガス、該燃料ガスにより駆動する燃焼式動力工具および燃焼式動力工具用ガスボンベ
US9234627B2 (en) * 2011-07-08 2016-01-12 Jose A. Cajiga System, apparatus and method for the cold-weather storage of gaseous fuel
CN106015925B (zh) * 2016-07-06 2017-12-15 南京理工大学 一种低成本高气密性可控补气系统

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EP0223946A3 (fr) * 1985-10-31 1988-09-14 Rothenberger Werkzeuge-Maschinen Gmbh Générateur d'oxygène consistant en un conteneur sous pression et un appui pour la cartouche pour obtenir des cartouches à oxygène inflammable

Also Published As

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US4628970A (en) 1986-12-16
EP0142730B1 (fr) 1989-01-18
DE3476249D1 (en) 1989-02-23
EP0142730A3 (en) 1986-07-16

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