EP2511587A2 - An adapter - Google Patents
An adapter Download PDFInfo
- Publication number
- EP2511587A2 EP2511587A2 EP20120163776 EP12163776A EP2511587A2 EP 2511587 A2 EP2511587 A2 EP 2511587A2 EP 20120163776 EP20120163776 EP 20120163776 EP 12163776 A EP12163776 A EP 12163776A EP 2511587 A2 EP2511587 A2 EP 2511587A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- adapter
- cartridge
- arrangement
- valve
- complementary
- 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
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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
- 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
- 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
- F17C2205/037—Quick connecting means, e.g. couplings
- F17C2205/0373—Adapters
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- 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
- F17C2221/032—Hydrocarbons
- F17C2221/035—Propane butane, e.g. LPG, GPL
-
- 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
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
-
- 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
- F17C2223/033—Small pressure, e.g. for liquefied gas
-
- 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
- F17C2270/0709—Camping gas
Definitions
- the present invention relates to an adapter. More particularly, but not exclusively, the present invention relates to an adapter for use with portable gas cartridges. Additionally, the present invention relates to a cartridge and to a kit of parts including an adapter and a cartridge.
- Gas cartridges are well known in the fields of camping and backpacking. Such cartridges typically hold liquefied petroleum gases such as propane, isobutane, butane or a mixture of the above. Cartridges are typically cylindrical in plan view and formed from multiple pressed/drawn sheet steel components to form the pressure vessel.
- a valve on the top of the cartridge enables gas to flow from the cartridge to an appliance, such as a stove or lantern when attached thereto, but automatically closes to block flow when the appliance is removed.
- the valve is incorporated into a valve cup at the top of the cartridge and comprises a valve boss or pedestal extending, upwardly coaxially with the major axis of the cartridge.
- the dimensions of the boss, valve actuator and valve seat are governed by BS EN 417:2003. This ensures that minimum safety standards may be achieved, and that cartridges and appliances from different manufacturers are interoperable.
- the present invention seeks to overcome or at least mitigate the problems of the prior art.
- a first aspect of the present invention provides an adapter for insertion into a valve cup of a gas cartridge incorporating a valve boss defining an axis, the adapter including an arrangement for non-rotatable securement relative to the gas cartridge about the axis and at least one lug preferably extending in a generally axial direction so as to be engageable in a corresponding formation on a gas appliance.
- the adapter comprises an at least partial ring shaped body portion arranged so as to at least partially encircle the valve boss, more preferably a complete ring.
- the arrangement may be a mechanical arrangement.
- the arrangement is a frictionally engaging fit, more preferably wherein the arrangement comprises at least one projection dimensioned so as to deform a wall of the valve portion upon insertion.
- the or each projection advantageously extends radially.
- the arrangement is an interference arrangement and advantageously comprises at least one recess on one of the adapter or cartridge configured to receive a corresponding tooth provided on the other of the adapter or cartridge. More preferably the recess is an aperture provided on the adapter, and even more preferably or alternatively the body portion incorporates the or each recess or tooth.
- the body portion advantageously comprises a plurality of equi-angularly spaced recesses or teeth.
- the interference arrangement comprises a non-circular profile to the inner and/or outer profile of the body portion, arranged to engage a complementary formation of the cartridge.
- the arrangement is an adhesive, and even more preferably a removable liner is arranged to cover the adhesive and be removed therefrom prior to securement to the cartridge.
- a second aspect of the present invention provides a gas cartridge having a valve cup portion for receiving an adapter having at least one lug to be engaged in a corresponding formation of a gas appliance, the cartridge comprising an interference arrangement for engaging a complementary arrangement on the adapter such that the adapter is non-rotatably secured relative to the cartridge.
- the arrangement comprises at least one recess on one of the adapter or cartridge configured to receive a corresponding tooth provided on the other of the adapter or cartridge. More preferably the tooth is provided on the cartridge. Even more preferably it is provided on a base wall of the valve cup.
- the interference arrangement comprises a non-circular profile to the inner profile of the outer wall and/or outer profile of the valve boss, arranged to engage a complementary formation of the adapter.
- a third aspect of the present invention provides a kit comprising an adapter according to the first embodiment of the present invention and a complementary gas cartridge.
- Figure 1 shows generally at 10 an assembly comprising a known proprietary connector 12 for a gas cartridge fuelled appliance (e.g. a stove or lantern - not shown), and an adapter 14 and cartridge 16 according to a first embodiment of the present invention.
- a gas cartridge fuelled appliance e.g. a stove or lantern - not shown
- an adapter 14 and cartridge 16 according to a first embodiment of the present invention.
- the cartridge 16 is generally of the type described above, except for the adaptations described below, being generally cylindrical in shape, and formed from a drawn steel top and side wall body component 18 (partially shown in Figure 1 ), a concave base (not shown) and a valve cup 20.
- the valve cup 20 is a separate formed metal component from the body 18, arranged to fit within an opening in the top of the body.
- the valve cup 20 is circular in plan view, defining a central axis A-A. Radially outermost from this axis A-A is a rolled bead 22 to mechanically engage the body component 18.
- the bead 22 merges into an axially extending outer wall 24 having a radial groove 26 therein.
- the outer wall is deeper than conventional outer walls by at least the depth of the adapter, so as to provide sufficient clearance for the connector 12.
- a base wall 28 extends radially inwardly from the outer wall 24 and terminates in a circular valve boss or pedestal 30 extending axially upwards to be capped by a top valve seat wall 32 with a central opening 34 through which gas may pass to the appliance.
- a valve mechanism (not shown) is housed within the boss 30 to close the cartridge 16 when the appliance is removed.
- the boss 30 is threaded, but in this embodiment the boss is smooth.
- teeth 34 not present in conventional cartridges extend axially upwardly from the base wall 28, with equal angles (i.e. 60°) therebetween. These teeth 34 are preferably pressed into the valve cap on part of the forming operation thereof. Each tooth is approximately midway between the boss 30 and outer wall 24 radially. In other embodiments the number of teeth 34 may be decreased or increased as desired.
- the adapter 14 comprises, in this embodiment, a ring-shaped, flat body portion 36 including six recesses in the form of apertures 38 positioned and dimensioned so as to be an interference fit with the teeth 34.
- the number of apertures 38 may be increased or decreased, provided there are as many or a multiple of apertures compared to teeth 34 (e.g. two teeth and four or eight apertures)
- the radially outer periphery of the body portion 36 is provided with six lugs 40 extending upwardly at right angles to the plane of the body portion 36.
- Each lug 40 is substantially semi-circular in cross section and spaced at equal angles around the body portion 36.
- the adapter 14 is a plastics component such as injection moulded ABS or polyethylene.
- Figure 2 in particular illustrates the known proprietary connector 12 with which the present invention is to be used.
- this connector is known as a "Campingaz RTM Easy Clic Plus RTM" connector produced by Application Des Gaz of Saint-Genis-Laval, France.
- the connector 12 which is shown inverted in Figure 2 comprises an inner portion 41 having central recess 42 to accommodate the valve boss 30, and a central pin 42 to depress the valve when married with the cartridge 16.
- a radially stepped region 48 is additionally provided on the inner portion above the scallops 46 in which three first sectors 50 have a relatively large diameter, and adjacent second sectors 52 have a relatively small diameter.
- An outer portion 54 of the connector 12 is rotatable relative to the inner portion 41 and has three tongues 56 extending downwardly from a collar 58.
- the tongues 56 are resilient and have ridges 60 at their lower end dimensioned to fit within the annular groove 26 of the valve cup 20.
- the lower end of the tongues 56 overlie either the smaller or larger diameter sectors 52 and 50, dependent upon the relative angular positions of the inner and outer portions 41 and 54.
- the connector 12 is inserted with the tongues 56 overlying the small diameter sectors 52 so the tongues may flex inwardly as they contact the outer wall of the valve cup, before straightening when they reach the annular groove.
- the user then rotates the collar 58, and with the inner portion 41 held by the pips, the large diameter sectors 50 are aligned with the tongues 56. This prevents the tongues 56 flexing inwardly, so that the connector 12 is held in place by the engagement of the ridges 60 with the groove 26.
- the adapter 14 is placed in position in the valve cup 20 with the teeth 34 inserted in the apertures 38, so the adapter is unable to rotate. Thereafter, the user may attach the connector 12 to the cartridge in the same way as with the specifically designed cartridge, but with the lugs 40 of the adapter taking over the same function as the pips of the specific cartridge - i.e. preventing rotation of the inner portion 41 relative to the cartridge 16. Consequently, the appliance can be connected by rotating the collar 58 through a part turn, so the ridges 60 are blocked from retracting from the annular groove 26.
- the lugs 40 are sufficiently rigid to be self-supporting when engaged by the scallops 46. In other embodiments, the lugs 40 may be supported from flexing radially outwardly by the outer wall 24.
- the use of the adapter 14 together a suitable cartridge enables the same cartridge may be used for proprietary and standard appliance connectors.
- the adapter may be left in place for use with both types of connectors, whereas in others, the adapter 14 may require removal for use with standard appliances. However removal is a very simple operation.
- the adapter may be selectively supplied by a manufacturer or retailer with a cartridge, dependent upon whether it is intended for use with standard or proprietary connectors.
- adapters may be supplied with all suitable cartridges so a user can be assured that the cartridge with the widest range of appliances.
- adapters may be offered as a separate extra cost item to the end user to be reused with multiple suitable cartridges.
- Figure 5 illustrates an adapter and valve cup according to a second embodiment of the present invention, in which like parts are labelled by the same numerals, but with the prefix "1". Only parts that differ from the first embodiment are discussed in detail.
- the adapter is formed from pressed steel, and is provided with radially extending teeth 138, dimensioned so that the adapter 114 is press-fitted into the valve cup and the teeth frictionally engage the outer wall 124 to prevent rotation of the adapter 136 relative to the valve cup 120.
- the lugs 140 in this embodiment are formed from bent portions of the steel plate.
- the cartridge may require no adaptation from a standard cartridge, or the only adaptation may be a slight lowering of the base wall 128 to allow for the thickness of the adapter body portion 136.
- Figure 6 illustrates a third embodiment, in which like parts are labelled by like numerals with the prefix "2".
- the adapter 214 is also formed from a pressed metal ring, but the lugs 140 are hooked over, and the adapter is secured in place by adhesive (not shown). This may be in the form of a self-adhesive tape or pad, with a liner in place to protect the adhesive until use.
- Figure 7 shows a fourth embodiment, in which like parts are labelled by the prefix "3".
- This embodiment utilises a hexagonal outer profile 338 to the adapter that mates with a complementary hexagonal form 334 pressed into the outer wall 324 of the valve cup 320 below the annular groove 326.
- the number of lugs, teeth and apertures may be adjusted.
- the teeth may be provided to extend downwardly into complementary recesses in the base wall of the valve cup.
- the number of flats may be increased or decreased.
- the insert may be provided as a one piece moulding together with a protective cap over the valve, and may be frangibly connected thereto to remain in place once the cap is removed.
Abstract
Description
- The present invention relates to an adapter. More particularly, but not exclusively, the present invention relates to an adapter for use with portable gas cartridges. Additionally, the present invention relates to a cartridge and to a kit of parts including an adapter and a cartridge.
- Gas cartridges are well known in the fields of camping and backpacking. Such cartridges typically hold liquefied petroleum gases such as propane, isobutane, butane or a mixture of the above. Cartridges are typically cylindrical in plan view and formed from multiple pressed/drawn sheet steel components to form the pressure vessel.
- A valve on the top of the cartridge enables gas to flow from the cartridge to an appliance, such as a stove or lantern when attached thereto, but automatically closes to block flow when the appliance is removed. The valve is incorporated into a valve cup at the top of the cartridge and comprises a valve boss or pedestal extending, upwardly coaxially with the major axis of the cartridge. The dimensions of the boss, valve actuator and valve seat are governed by BS EN 417:2003. This ensures that minimum safety standards may be achieved, and that cartridges and appliances from different manufacturers are interoperable.
- However, certain manufacturers have used the standard as a basis for their own proprietary attachment systems in place of known threaded bosses or clamped attachments. In turn, this means that it has not been possible for a single basic cartridge to be supplied that can be used both with standard appliances and the proprietary appliances.
- The present invention seeks to overcome or at least mitigate the problems of the prior art.
- A first aspect of the present invention provides an adapter for insertion into a valve cup of a gas cartridge incorporating a valve boss defining an axis, the adapter including an arrangement for non-rotatable securement relative to the gas cartridge about the axis and at least one lug preferably extending in a generally axial direction so as to be engageable in a corresponding formation on a gas appliance.
- Preferably the adapter comprises an at least partial ring shaped body portion arranged so as to at least partially encircle the valve boss, more preferably a complete ring.
- The arrangement may be a mechanical arrangement. In one preferred variant the arrangement is a frictionally engaging fit, more preferably wherein the arrangement comprises at least one projection dimensioned so as to deform a wall of the valve portion upon insertion. The or each projection advantageously extends radially.
- In an alternative preferred embodiment, the arrangement is an interference arrangement and advantageously comprises at least one recess on one of the adapter or cartridge configured to receive a corresponding tooth provided on the other of the adapter or cartridge. More preferably the recess is an aperture provided on the adapter, and even more preferably or alternatively the body portion incorporates the or each recess or tooth.
- The body portion advantageously comprises a plurality of equi-angularly spaced recesses or teeth.
- In a further preferred embodiment, the interference arrangement comprises a non-circular profile to the inner and/or outer profile of the body portion, arranged to engage a complementary formation of the cartridge.
- In a still further alternative preferred embodiment the arrangement is an adhesive, and even more preferably a removable liner is arranged to cover the adhesive and be removed therefrom prior to securement to the cartridge.
- A second aspect of the present invention provides a gas cartridge having a valve cup portion for receiving an adapter having at least one lug to be engaged in a corresponding formation of a gas appliance, the cartridge comprising an interference arrangement for engaging a complementary arrangement on the adapter such that the adapter is non-rotatably secured relative to the cartridge.
- Preferably, the arrangement comprises at least one recess on one of the adapter or cartridge configured to receive a corresponding tooth provided on the other of the adapter or cartridge. More preferably the tooth is provided on the cartridge. Even more preferably it is provided on a base wall of the valve cup.
- Further or alternatively, the interference arrangement comprises a non-circular profile to the inner profile of the outer wall and/or outer profile of the valve boss, arranged to engage a complementary formation of the adapter.
- A third aspect of the present invention provides a kit comprising an adapter according to the first embodiment of the present invention and a complementary gas cartridge.
- Embodiments of the present invention will now be described in detail with reference to the accompanying drawings in which:
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FIGURE 1 is an exploded isometric view of an assembly incorporating an adapter and cartridge according to a first embodiment of the present invention, together with an connector portion of a proprietary appliance; -
FIGURE 2 is an isometric view of the underside of the connector portion of the proprietary appliance shown inFigure 1 ; -
FIGURE 3 is an isometric view of the adapter ofFigure 1 ; -
FIGURE 4 is a vertical cross-section through the cartridge ofFigure 1 ; and -
FIGURES 5 to 8 are exploded isometric views of adapters and cartridges according to second, third, fourth and fifth embodiments of the present invention respectively. -
Figure 1 shows generally at 10 an assembly comprising a knownproprietary connector 12 for a gas cartridge fuelled appliance (e.g. a stove or lantern - not shown), and anadapter 14 andcartridge 16 according to a first embodiment of the present invention. - With particular reference to
Figure 4 , thecartridge 16 is generally of the type described above, except for the adaptations described below, being generally cylindrical in shape, and formed from a drawn steel top and side wall body component 18 (partially shown inFigure 1 ), a concave base (not shown) and a valve cup 20. - The valve cup 20 is a separate formed metal component from the
body 18, arranged to fit within an opening in the top of the body. The valve cup 20 is circular in plan view, defining a central axis A-A. Radially outermost from this axis A-A is a rolledbead 22 to mechanically engage thebody component 18. Thebead 22 merges into an axially extendingouter wall 24 having aradial groove 26 therein. In this embodiment, the outer wall is deeper than conventional outer walls by at least the depth of the adapter, so as to provide sufficient clearance for theconnector 12. - A
base wall 28 extends radially inwardly from theouter wall 24 and terminates in a circular valve boss orpedestal 30 extending axially upwards to be capped by a topvalve seat wall 32 with acentral opening 34 through which gas may pass to the appliance. A valve mechanism (not shown) is housed within theboss 30 to close thecartridge 16 when the appliance is removed. In certain embodiments theboss 30 is threaded, but in this embodiment the boss is smooth. - In this embodiment six
circular teeth 34, not present in conventional cartridges extend axially upwardly from thebase wall 28, with equal angles (i.e. 60°) therebetween. Theseteeth 34 are preferably pressed into the valve cap on part of the forming operation thereof. Each tooth is approximately midway between theboss 30 andouter wall 24 radially. In other embodiments the number ofteeth 34 may be decreased or increased as desired. - Referring to
Figure 3 in particular, theadapter 14 comprises, in this embodiment, a ring-shaped,flat body portion 36 including six recesses in the form ofapertures 38 positioned and dimensioned so as to be an interference fit with theteeth 34. Again the number ofapertures 38 may be increased or decreased, provided there are as many or a multiple of apertures compared to teeth 34 (e.g. two teeth and four or eight apertures) - The radially outer periphery of the
body portion 36 is provided with sixlugs 40 extending upwardly at right angles to the plane of thebody portion 36. Eachlug 40 is substantially semi-circular in cross section and spaced at equal angles around thebody portion 36. In a preferred embodiment, theadapter 14 is a plastics component such as injection moulded ABS or polyethylene. - For ease of understanding,
Figure 2 in particular illustrates the knownproprietary connector 12 with which the present invention is to be used. Specifically this connector is known as a "CampingazRTM Easy Clic PlusRTM" connector produced by Application Des Gaz of Saint-Genis-Laval, France. - The
connector 12, which is shown inverted inFigure 2 comprises aninner portion 41 havingcentral recess 42 to accommodate thevalve boss 30, and acentral pin 42 to depress the valve when married with thecartridge 16. On the radial outer edge of the inner portion are a series of twelve equallyspaced scallops 46. On the cartridges specifically designed for this connector (not shown), four hemispherical pips extend radially inwardly from the outer wall of the valve cup to engage thescallops 46 and prevent rotation of the inner portion. - A radially
stepped region 48 is additionally provided on the inner portion above thescallops 46 in which threefirst sectors 50 have a relatively large diameter, and adjacentsecond sectors 52 have a relatively small diameter. - An outer portion 54 of the
connector 12 is rotatable relative to theinner portion 41 and has threetongues 56 extending downwardly from acollar 58. Thetongues 56 are resilient and haveridges 60 at their lower end dimensioned to fit within theannular groove 26 of the valve cup 20. The lower end of thetongues 56 overlie either the smaller orlarger diameter sectors outer portions 41 and 54. - Thus, in use on the specifically designed cartridges, the
connector 12 is inserted with thetongues 56 overlying thesmall diameter sectors 52 so the tongues may flex inwardly as they contact the outer wall of the valve cup, before straightening when they reach the annular groove. The user then rotates thecollar 58, and with theinner portion 41 held by the pips, thelarge diameter sectors 50 are aligned with thetongues 56. This prevents thetongues 56 flexing inwardly, so that theconnector 12 is held in place by the engagement of theridges 60 with thegroove 26. - In the present invention by contrast, the
adapter 14 is placed in position in the valve cup 20 with theteeth 34 inserted in theapertures 38, so the adapter is unable to rotate. Thereafter, the user may attach theconnector 12 to the cartridge in the same way as with the specifically designed cartridge, but with thelugs 40 of the adapter taking over the same function as the pips of the specific cartridge - i.e. preventing rotation of theinner portion 41 relative to thecartridge 16. Consequently, the appliance can be connected by rotating thecollar 58 through a part turn, so theridges 60 are blocked from retracting from theannular groove 26. In this embodiment thelugs 40 are sufficiently rigid to be self-supporting when engaged by thescallops 46. In other embodiments, thelugs 40 may be supported from flexing radially outwardly by theouter wall 24. - Removal of the
connector 12 is simply the reverse of attachment. - It will be appreciated that the use of the
adapter 14 together a suitable cartridge enables the same cartridge may be used for proprietary and standard appliance connectors. In some instances, the adapter may be left in place for use with both types of connectors, whereas in others, theadapter 14 may require removal for use with standard appliances. However removal is a very simple operation. - Furthermore, it will be appreciated that the adapter may be selectively supplied by a manufacturer or retailer with a cartridge, dependent upon whether it is intended for use with standard or proprietary connectors. Alternatively, adapters may be supplied with all suitable cartridges so a user can be assured that the cartridge with the widest range of appliances. As another alternative adapters may be offered as a separate extra cost item to the end user to be reused with multiple suitable cartridges.
-
Figure 5 illustrates an adapter and valve cup according to a second embodiment of the present invention, in which like parts are labelled by the same numerals, but with the prefix "1". Only parts that differ from the first embodiment are discussed in detail. - In this embodiment, the adapter is formed from pressed steel, and is provided with radially extending
teeth 138, dimensioned so that the adapter 114 is press-fitted into the valve cup and the teeth frictionally engage theouter wall 124 to prevent rotation of the adapter 136 relative to thevalve cup 120. The lugs 140 in this embodiment are formed from bent portions of the steel plate. In this embodiment, the cartridge may require no adaptation from a standard cartridge, or the only adaptation may be a slight lowering of thebase wall 128 to allow for the thickness of the adapter body portion 136. -
Figure 6 illustrates a third embodiment, in which like parts are labelled by like numerals with the prefix "2". In this embodiment, theadapter 214 is also formed from a pressed metal ring, but the lugs 140 are hooked over, and the adapter is secured in place by adhesive (not shown). This may be in the form of a self-adhesive tape or pad, with a liner in place to protect the adhesive until use. -
Figure 7 shows a fourth embodiment, in which like parts are labelled by the prefix "3". This embodiment utilises a hexagonalouter profile 338 to the adapter that mates with a complementaryhexagonal form 334 pressed into theouter wall 324 of thevalve cup 320 below theannular groove 326. - In the fifth embodiment of
Figure 8 in which the prefix "4" is used, a similar approach is adopted, but with a squareinner profile 438 on the adapter, and a complementary square outer profile 434 around the base of the boss 430 to prevent relative rotation - It will be appreciated that terms such as inner and outer, upper and lower are used for ease of explanation, and should not be regarded as limiting.
- It will be understood that numerous changes may be made within the scope of the present invention. For example, the number of lugs, teeth and apertures may be adjusted. In the first embodiment, the teeth may be provided to extend downwardly into complementary recesses in the base wall of the valve cup. In the fourth and fifth embodiments, the number of flats may be increased or decreased. The insert may be provided as a one piece moulding together with a protective cap over the valve, and may be frangibly connected thereto to remain in place once the cap is removed.
Claims (15)
- An adapter for insertion into a valve cup of a gas cartridge incorporating a valve boss defining an axis, the adapter including an arrangement for non-rotatable securement relative to the gas cartridge about the axis and at least one lug extending in an axial direction so as to be engageable in a corresponding formation on a gas appliance.
- An adapter according to claim 1 comprising an at least partial ring shaped body portion arranged so as to at least partially encircle the valve boss, preferably wherein the body portion is a complete ring.
- An adapter according to any preceding claim wherein the arrangement is a mechanical arrangement.
- An adapter according to claim 3 wherein the arrangement is a frictionally engaging fit.
- An adapter according to claim 4 wherein the arrangement comprises at least one projection dimensioned so as to deform a wall of the valve portion upon insertion, preferably wherein the or each projection extends radially.
- An adapter according to any preceding claim wherein arrangement is an interference arrangement. Preferably wherein the arrangement comprises at least one recess on one of the adapter or cartridge configured to receive a corresponding tooth provided on the other of the adapter or cartridge, more preferably wherein the recess is an aperture provided on the adapter.
- An adapter according to claim 6 wherein the body portion incorporates the or each recess or tooth, preferably wherein the body portion comprises a plurality of equi-angularly spaced recesses or teeth.
- An adapter according to claim 6 to 7 when dependent upon any one of claims 2 to 7 wherein the interference arrangement comprises a non-circular profile to the inner and/or outer profile of the body portion, arranged to engage a complementary formation of the cartridge.
- An adapter according to any preceding claim wherein the arrangement is an adhesive. Preferably further comprising a removable liner arranged to cover the adhesive and be removed therefrom prior to securement to the cartridge.
- A gas cartridge for receiving an adapter at a valve cup portion thereof and having at least one lug to be engaged in a corresponding formation of a gas appliance, the cartridge comprising an interference arrangement for engaging a complementary arrangement on the adapter such that the adapter is non-rotatably secured relative to the cartridge.
- A gas cartridge according to claim 10 wherein the arrangement comprises at least one recess on one of the adapter or cartridge configured to receive a corresponding tooth provided on the other of the adapter or cartridge. Preferably wherein the tooth provided on the valve cup portion. More preferably wherein the tooth is provided on a base wall of the valve cup.
- A gas cartridge according to claim 10 or 11, wherein the interference arrangement comprises a non-circular profile to the inner profile of the outer wall and/or outer profile of the valve boss, arranged to engage a complementary formation of the adapter.
- A kit comprising an adapter according to any one of claims 1 to 9 and a complementary cartridge.
- A kit comprising an adapter according to any one of claims 6 to 9 and a complementary cartridge according to any one of claims 10 to 12.
- A kit comprising an adapter according to claim 8 and a complementary cartridge according to claim 12.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB201106105A GB2489945B (en) | 2011-04-11 | 2011-04-11 | An adapter |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2511587A2 true EP2511587A2 (en) | 2012-10-17 |
EP2511587A3 EP2511587A3 (en) | 2013-06-19 |
EP2511587B1 EP2511587B1 (en) | 2016-07-20 |
Family
ID=44122918
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12163776.3A Not-in-force EP2511587B1 (en) | 2011-04-11 | 2012-04-11 | An adapter |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2511587B1 (en) |
DK (1) | DK2511587T3 (en) |
GB (1) | GB2489945B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018011771A1 (en) | 2016-07-15 | 2018-01-18 | Mulla Rahmi | Safety valve with insert for cartridge storing gas |
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FR2376999A1 (en) * | 1977-01-10 | 1978-08-04 | Applic Gaz Sa | PERFECTED SYSTEM FOR FIXING A DEVICE ON A PRESSURIZED FLUID CARTRIDGE |
US4960261A (en) * | 1986-03-17 | 1990-10-02 | Isoworth Limited | Gas cylinder connector |
US5549228A (en) * | 1995-08-11 | 1996-08-27 | Insta-Foam Products, Inc. | Attachment system for fluent product dispensers |
DE29517323U1 (en) * | 1995-11-02 | 1996-02-01 | Rothenberger Werkzeuge Masch | Coupling piece for connecting small gas cylinders with burners |
JP2777998B2 (en) * | 1995-12-15 | 1998-07-23 | 株式会社旭テクノス | Gas container connection device |
KR100291484B1 (en) * | 1999-04-23 | 2001-05-15 | 김동숙 | Adapter for a dome-shaped butangas container |
CN1157549C (en) * | 1999-11-10 | 2004-07-14 | 沃尔特托斯托股份公司 | Cartridge connecting system for combustible gas distributors |
US6959742B2 (en) * | 2003-01-31 | 2005-11-01 | Ronson Corporation | Fuel transfer adaptor |
US8074965B2 (en) * | 2004-10-19 | 2011-12-13 | Eric Carrato | Device for connecting a gas-operated appliance and a gas cartridge |
KR20100055143A (en) * | 2008-11-17 | 2010-05-26 | 지홍식 | Portable butane gas adapter |
-
2011
- 2011-04-11 GB GB201106105A patent/GB2489945B/en not_active Expired - Fee Related
-
2012
- 2012-04-11 DK DK12163776.3T patent/DK2511587T3/en active
- 2012-04-11 EP EP12163776.3A patent/EP2511587B1/en not_active Not-in-force
Non-Patent Citations (1)
Title |
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None |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018011771A1 (en) | 2016-07-15 | 2018-01-18 | Mulla Rahmi | Safety valve with insert for cartridge storing gas |
WO2018011772A1 (en) | 2016-07-15 | 2018-01-18 | Mulla Rahmi | Safety valve with plastic insert for cartridge storing gas |
Also Published As
Publication number | Publication date |
---|---|
EP2511587B1 (en) | 2016-07-20 |
GB2489945A (en) | 2012-10-17 |
EP2511587A3 (en) | 2013-06-19 |
DK2511587T3 (en) | 2016-09-05 |
GB201106105D0 (en) | 2011-05-25 |
GB2489945B (en) | 2014-05-07 |
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