GB2174180A - An attachment for a pressure vessel - Google Patents

An attachment for a pressure vessel Download PDF

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Publication number
GB2174180A
GB2174180A GB8607933A GB8607933A GB2174180A GB 2174180 A GB2174180 A GB 2174180A GB 8607933 A GB8607933 A GB 8607933A GB 8607933 A GB8607933 A GB 8607933A GB 2174180 A GB2174180 A GB 2174180A
Authority
GB
United Kingdom
Prior art keywords
attachment
pressure vessel
valve
seal
bulb
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB8607933A
Other versions
GB8607933D0 (en
Inventor
Rodney Gomersall
Alan Thomas
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.)
STARDAM Ltd
Original Assignee
STARDAM Ltd
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 STARDAM Ltd filed Critical STARDAM Ltd
Publication of GB8607933D0 publication Critical patent/GB8607933D0/en
Publication of GB2174180A publication Critical patent/GB2174180A/en
Withdrawn legal-status Critical Current

Links

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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of 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
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F17C7/02—Discharging liquefied 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
    • F17C2205/0311—Closure means
    • F17C2205/032—Closure means pierceable
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/013—Carbone dioxide
    • 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
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0636—Flow or movement of content
    • 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
    • F17C2270/07—Applications for household use
    • F17C2270/0736—Capsules, e.g. CO2

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Devices For Dispensing Beverages (AREA)

Abstract

A pressure vessel bulb 210 is screwed into a ring 282 of an attachment. In order to pierce the seal on the bulb, once it is connected to the bulb, a piston 240 is urged inwardly by pushing its projecting end against an abutment. That inwards movement causes a valve 250 and a piercer 222 carried by the valve to move towards, and pierce the valve. The released fluid pressure closes the valve and the pressure in a chamber 288 causes a sealing piston 284 to be moved towards the bulb to compress and enhance the seal provided by an O-ring 218 located between the bulb and the sealing piston. Several embodiments are described. <IMAGE>

Description

SPECIFICATION An attachment for a pressure vessel The present invention relates to an attachment for a pressure vessel and is particularly concerned with an attachment for pressure vessels which are sealed.
Sealed pressure vessels containing Carbon Dioxide and comprising small bulbs are used in carbonating beer. At present, the bulbs are urged into contact with a spike which pierces the seal on the bulb, and all of the Carbon Dioxide then flows into the vessel containing the beer. There are no means of controlling how much Carbon Dioxide enters the vessel, except by pulling the bulb away from the spike, and all of the contents of the bulb are discharged almost as soon as the seal is broken. Furthermore, providing an effective seal to prevent the leakage of fluid from the pierced bulb is extremely difficult to prevent.
According to one aspect of the present invention, an attachment adapted to be secured with a pressure vessel comprises a piercing member arranged to break a seal on a pressure vessel and a valve adapted to control the flow of pressure fluid from a pierced pressure vessel. With such an attachment, all of the contents of a pressure vessel need not be discharged when the seal is broken as the valve can control the discharge. Furthermore, the pierced pressure vessel and attachment can be arranged to transfer fluid through a number of inlet valves or a number of pressure vessels, or the pierced pressure vessel and attachment can be removed from the inlet valve of a pressure vessel when it is not required to transfer pressure fluid into that other vessel, as the valve on the attachment can prevent the escape of pressure fluid from the pierced pressure vessel.
The piercing member may be arranged to cause the seal on a pressure vessel to be broken as the attachment is being secured with a pressure vessel. The attachment may be arranged to threadably engage with a pressure vessel. Alternatively, the attachment may include two portions which threadably engage each other, one of which includes the piercing member and the other of which is arranged to bear against the pressure cylinder to provide a resisting force to that exerted by the piercing member on the seal of a pressure vessel when the two portions are being secured together.
The valve may include a movable valve member capable of sealing with the attachment to prevent the flow of pressure fluid from a pierced pressure vessel but movable to a position in which the seal is broken and fluid can flow from the pierced pressure vessel. The valve member may be arranged to be moved by a piston means, one end of which is arranged to bear against the valve member to cause the seal of the valve member to be broken and the other end of which includes a discharge nozzle through which pressure fluid released by the valve may flow. The piston means may be arranged to cooperate with a projecting portion of the valve member.The piston means may be connected to the attachment and may be arranged to slide with respect to the attachment, the piston means including a projecting portion with a discharge nozzle, biasing of the projecting portion of the piston means against an inlet valve of a pressure vessel being arranged to cause sliding movement of the piston means relative to the attachment, engagement of the piston means with the valve member causing the valve member to move and allow fluid to flow from a pierced pressure vessel through the discharge nozzle of the piston means and through the inlet valve.
According to another aspect of the present invention, an attachment adapted to be secured with a pressure vessel comprises a piercing member arranged to cause the seal of a pressure vessel to be broken as the attachment is being secured with a pressure vessel, a valve arranged to control the flow of pressure fluid from a pierced pressure vessel and piston means slidably mounted on the attachment, the piston means including a projecting portion having a discharge nozzle, the attachment being adapted to allow pressure fluid to be transferred from a pierced pressure vessel through the inlet valve of another pressure vessel by urging the projecting portion of the piston means against the inlet valve to cause relative sliding movement of the piston means into the attachment, the piston means bearing against the valve to permit fluid to flow past the valve and through the discharge nozzle into the pressure vessel.
The attachment may include sealing means arranged to be assisted, in use, by the pressure of the fluid.
The invention may be carried into practice in various ways, but two embodiments will now be described by way of example and with reference to the accompanying drawings, in which: Figure 1 is a side view, partly in crosssection, of a carbon dioxide bulb secured with an attachment according to a first embodiment; Figure 2 is a similar view to Figure 1 of a carbon dioxide cylinder fitted with an attachment according to a second embodiment, and Figure 3 is a sectional view above the centre line of an attachment according to a third embodiment.
Referring first to Figure 1, there is shown a carbon dioxide bulb 10 located within a holder 12 with a body 14 screwed into the open end of the holder 12 by means of co-operating screw threads 16. The bulb 10 is sealed prior to the body 14 being located, and com prises an 8 gram capsule.
In order to secure the bulb within the holder 12 and pierce the bulb, the bulb is inserted through the open end of the holder. The body 14 is then screwed into the end of the holder and an annular seal 18 first engages and seals with the neck 20 of the bulb before a piercing pin 22 is brought into contact with, and driven through the sealed end of the bulb.
Once the pin has pierced the seal, the carbon dioxide is then free to flow around the pin and through an opening 24 formed in the head 26 of the pin, which head is secured to the inside of a passage 28 extending through the body. The carbon dioxide then communicates with the right hand side (as viewed in the figure) of a valve 30 and biases a sealing ring 32 of the valve into sealing engagement with a shoulder 34 formed on a reduced diameter portion 36 in the passage 28. Thus the sealing ring 30 of the valve is able to prevent the carbon dioxide from escaping.
In order to discharge the carbon dioxide from the bulb through an inlet valve (not shown) of a container to be pressurised, the rounded end 38 of a piston 40 which projects from the attachment is brought against a resilient ring of the inlet valve to seal therewith.
The piston is slidably mounted in the attachment, outwards movement from the attachment being limited by engagement of a shoulder 42 of the piston with an inwardly facing shoulder 44 located on a retaining ring 46, and a sealing ring 48 located in a groove on the piston seals with the passage 28. When the holder is pushed towards the inlet valve the body slides on the piston to cause the inner end 50 of the piston first to bear against a projection 52 of the valve which extends through the reduced diameter portion 36,and then to move the sealing ring 32 of the valve out of contact with the shoulder 34 to allow the fluid to flow through the passage past the valve. The fluid then enters the end of a discharge passage 54, which extends through the piston, and passes along the passage 54 into the inlet valve past the rounded end 38 of the piston.The end of the piston which abuts the projection 52 of the valve is formed with suitable channels 56 to prevent the projection from sealing the end of the discharge passage.
When fluid is no longer required to be transferred through the inlet valve, the pressure on the holder towards the inlet valve can be removed and the fluid pressure acting on the right hand side of the valve 30 causes the sealing ring 32 to move back and seal with the shoulder 34.
The body 14 is formed with a knurled surface 58 over a portion of its exterior surface to enable the body and holder to be screwed together by hand, without the need for any tools.
The embodiment shown in Figure 2 will now be described with like parts to those in Figure 1 being given the same reference numeral prefixed by the number 1.
In Figure 2, only the end of a carbon dioxide cylinder 110 is shown. The neck 120 of the cylinder is threaded and is engaged by the internal thread 159 of a connector 160. The connector 160 is provided with an annular sealing ring 162 which is urged into sealing engagement with the end of the cyjinder.
The attachment is mounted on the cylinder and the seal of the cylinder pierced as follows. First the connection 160 is screwed onto the cylinder. The connector 160 includes an opening 164 extending therethrough into which a piercing pin 122 extending from a plate 126 is inserted. A seal 166 is provided between the opening 164 in the connector and the outside of an extension 164 joining the pin with the plate. A body 114 is then placed over the end of the connector 160 and screwed onto the connector by means of cooperating screw threads 170. As the body 114 is screwed onto the connector an inwardly facing shoulder 172 of the body pushes against the plate 126 to drive the plate towards the cylinder and to cause the pin 122 to break the seal on the cylinder.An annular seal 174 is provided between the plate 126 and the shoulder 172 and a further annular seal 176 is provided between the connector and the body 114 adjacent to the screw threads 170.
As soon as the seal on the cylinder is broken, carbon dioxide is able to pass through an opening 178 adjacent to the tip of the pin and into a channel 180, but is able to be prevented from escaping further by a valve 130, the valve being biased towards a shoulder 134 by the fluid pressure against a sealing ring 132.
The valve 130 includes a projection 152 which extends through the plate 126 and is arranged to be engaged by one end of a piston 140 in order to allow pressure fluid to flow past the valve 130 and out through the discharge passage 154 of the piston. The way in which the piston engages with an inlet valve and the cooperation of the piston with the valve 30 is suDstantially the same as that previously described with reference to Figure 1.
In Figures 1 and 2, the seal afforded by the rings 32 and 132 and the seal 174 is assisted by the pressure of the fluid coming from the pierced cylinder, as may be the seal afforded by the rings 18 and 162.
Figure 3 will now be described with like parts to those in Figures 1 and 2 being given the same reference numeral prefixed by the number 2.
The bulb 210 is connected with the body 14 by means of an internally and externally threaded cylindrical ring 282 threadably engaging both parts.
The body houses four slidably movable parts comprising a sealing piston 284, a valve 230, a piercing pin 222 and a piston 240 held in position by the retaining ring 246.
The securing of the attachment to the bulb and the subsequent piercing of the bulb will now be described.
As the bulb is screwed into the cylindrical ring 282 its end face 286 comes to rest against an O-ring seal 218 of the sealing piston 284, and may even push the piston into the attachment slightly.
In order to pierce the bulb, the projecting end of the piston 240 is caused to move into the attachment, for instance by pushing that projecting end against an abutment or an inlet valve, the inner end 250 of the piston bearing against the projection 52 of the valve, the opposed face 286 of the valve bearing against and holding the piercer 222 to cause it to move towards, and pierce the bulb.
Once the bulb is pierced the pressurised fluid released therefrom rushes past the piercer and bears against the face 286 of the valve to close it, and the fluid occupies a chamber 288 and bears against the face 290 of the sealing piston 284 and urges the seal 218 more firmly into engagement with the end face of the bulb. The sealing piston also includes a pair of spaced O-rings 292 and 294 which engage with the inner wall 296 of the body in which the piston 284 slides. Fluid coming from the chamber 288 will tend to force the resilientring 292 at least away from the chamber which will compress that ring and assist in reinforcing the seal provided thereby.
Operation of the attachment for discharging pressure fluid into an inlet valve is as described herein with reference to Figure 1 or 2.
Any of the pistons shown in Figures 1, 2 and 3 may be removed from the attachment whilst the valves maintain the seal on the bulb or cylinder.
Any of the herein described arrangements may be modified by including those features referred to in the claims.

Claims (14)

1. An attachment adapted to be secured to a pressure vessel including a piercing member arranged to be capable of breaking a seal on a pressure vessel, and a valve adapted to control the flow of pressure fluid from a pierced pressure vessel, the attachment further including sealing means arranged to be assisted, in use, when the attachment is secured to a pressure vessel and the seal on the pressure vessel has been broken by the piercing member, by the pressure of the fluid.
2. An attachment as claimed in Claim 1 in which the sealing means includes a seal located between the portions of the attachment.
3. An attachment as claimed in Claim 1 or 2 in which the sealing means includes a seal located, in use, between the attachment and a portion of a pressure vessel to which the attachment is secured.
4. An attachment as claimed in Claim 2 or 3 in which a portion of the seal is provided on a movable portion of the attachment.
5. An attachment as claimed in Claim 4 and Claim 2 in which the seal between the movable portion of the attachment and the other portion of the attachment comprises the valve.
6. An attachment as claimed in any preceding claim in which the seal on a pressure vessel is arranged to be broken upon securing of the attachment to a pressure vessel.
7. An attachment as claimed in any of Claims 1 to 5 in which the seal on a pressure vessel is arranged to be broken after the attachment has been secured to a pressure vessel.
8. An attachment as claimed in any preceding claim in which the valve is arranged to be operated upon movement of an operating member.
9. An attachment as claimed in Claim 8 in which the operating member is arranged to engage with an inlet valve to cause the movement of the operating member required to operate the valve.
10. An attachment as claimed in Claim 9 in which the operating member is separate from the valve.
11. An attachment as claimed in Claim 9 or 10 and Claim 7 in which, in use, the movement of the operating member is also arranged to cause the piercing member to break the seal on a pressure vessel.
12. An attachment adapted to be secured to a pressure vessel including a piercing member arranged to be capable of breaking a seal on a pressure vessel, a valve adapted to control the flow of fluid from a pierced pressure vessel, and a movable operating member arranged, in use, to bear against an inlet valve in order to operate the valve and discharge fluid through the inlet valve.
13. An attachment as claimed in Claim 12 including any of the features of the attachment claimed in any of Claims 1 to 11.
14. An attachment substantially as herein described with reference to, and as shown in Figure 1 or Figure 2 or Figure 3 of the accompanying drawings.
GB8607933A 1985-04-02 1986-04-01 An attachment for a pressure vessel Withdrawn GB2174180A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8508548A GB8508548D0 (en) 1985-04-02 1985-04-02 Attachment for pressure vessel

Publications (2)

Publication Number Publication Date
GB8607933D0 GB8607933D0 (en) 1986-05-08
GB2174180A true GB2174180A (en) 1986-10-29

Family

ID=10577062

Family Applications (2)

Application Number Title Priority Date Filing Date
GB8508548A Pending GB8508548D0 (en) 1985-04-02 1985-04-02 Attachment for pressure vessel
GB8607933A Withdrawn GB2174180A (en) 1985-04-02 1986-04-01 An attachment for a pressure vessel

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB8508548A Pending GB8508548D0 (en) 1985-04-02 1985-04-02 Attachment for pressure vessel

Country Status (1)

Country Link
GB (2) GB8508548D0 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672662A1 (en) * 1991-02-10 1992-08-14 Applic Gaz Sa System for coupling between a cartridge and a device for drawing off its contents
WO2011128620A1 (en) * 2010-04-16 2011-10-20 Linde Aktiengesellschaft Pierceable gas cartridge
CN104819380A (en) * 2014-02-04 2015-08-05 施特劳斯净水有限公司 Pressurized gas container
WO2019102479A1 (en) * 2017-11-26 2019-05-31 Strauss Water Ltd Adapter for a pressurized gas container

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB811588A (en) * 1955-10-04 1959-04-08 Dessins Etudes Outil Mecanique Improvements in stoves and other burner apparatus using a combustible gas liquefied under pressure
GB1448463A (en) * 1972-11-10 1976-09-08 Applic Gaz Sa Dispensing head for connection to a cartridge gas container
GB1529684A (en) * 1974-12-19 1978-10-25 Taymar Ltd Adaptors
GB1586686A (en) * 1976-09-30 1981-03-25 Waterlomat Sa Apparatus for dispensing drinks under pressure
GB2110358A (en) * 1981-11-07 1983-06-15 Rilett John W Apparatus for discharging pressurised containers
GB2112124A (en) * 1981-12-18 1983-07-13 Clearline Home And Leisure Pro Gas cylinder fitting

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB811588A (en) * 1955-10-04 1959-04-08 Dessins Etudes Outil Mecanique Improvements in stoves and other burner apparatus using a combustible gas liquefied under pressure
GB1448463A (en) * 1972-11-10 1976-09-08 Applic Gaz Sa Dispensing head for connection to a cartridge gas container
GB1529684A (en) * 1974-12-19 1978-10-25 Taymar Ltd Adaptors
GB1586686A (en) * 1976-09-30 1981-03-25 Waterlomat Sa Apparatus for dispensing drinks under pressure
GB2110358A (en) * 1981-11-07 1983-06-15 Rilett John W Apparatus for discharging pressurised containers
GB2112124A (en) * 1981-12-18 1983-07-13 Clearline Home And Leisure Pro Gas cylinder fitting

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672662A1 (en) * 1991-02-10 1992-08-14 Applic Gaz Sa System for coupling between a cartridge and a device for drawing off its contents
WO2011128620A1 (en) * 2010-04-16 2011-10-20 Linde Aktiengesellschaft Pierceable gas cartridge
CN104819380A (en) * 2014-02-04 2015-08-05 施特劳斯净水有限公司 Pressurized gas container
WO2015118525A3 (en) * 2014-02-04 2016-05-06 Strauss Water Ltd. Pressurized gas container and coupling means for appliances
WO2019102479A1 (en) * 2017-11-26 2019-05-31 Strauss Water Ltd Adapter for a pressurized gas container
CN109838690A (en) * 2017-11-26 2019-06-04 斯特劳斯水业有限公司 Adapter for pressure gas containers
CN109838690B (en) * 2017-11-26 2021-06-25 斯特劳斯水业有限公司 Adapter for pressurized gas containers

Also Published As

Publication number Publication date
GB8508548D0 (en) 1985-05-09
GB8607933D0 (en) 1986-05-08

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)