WO2012076845A2 - Poêle portable - Google Patents

Poêle portable Download PDF

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Publication number
WO2012076845A2
WO2012076845A2 PCT/GB2011/001695 GB2011001695W WO2012076845A2 WO 2012076845 A2 WO2012076845 A2 WO 2012076845A2 GB 2011001695 W GB2011001695 W GB 2011001695W WO 2012076845 A2 WO2012076845 A2 WO 2012076845A2
Authority
WO
WIPO (PCT)
Prior art keywords
receptacle
stove
gas
windshield
bottom wall
Prior art date
Application number
PCT/GB2011/001695
Other languages
English (en)
Other versions
WO2012076845A9 (fr
WO2012076845A3 (fr
Inventor
Thomas Jenkins
Original Assignee
Amicus Militorum 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 Amicus Militorum Ltd filed Critical Amicus Militorum Ltd
Publication of WO2012076845A2 publication Critical patent/WO2012076845A2/fr
Publication of WO2012076845A3 publication Critical patent/WO2012076845A3/fr
Publication of WO2012076845A9 publication Critical patent/WO2012076845A9/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C1/00—Stoves or ranges in which the fuel or energy supply is not restricted to solid fuel or to a type covered by a single one of the following groups F24C3/00 - F24C9/00; Stoves or ranges in which the type of fuel or energy supply is not specified
    • F24C1/02—Stoves or ranges in which the fuel or energy supply is not restricted to solid fuel or to a type covered by a single one of the following groups F24C3/00 - F24C9/00; Stoves or ranges in which the type of fuel or energy supply is not specified adapted for the use of two or more kinds of fuel or energy supply
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/24—Warming devices
    • A47J36/26—Devices for warming vessels containing drinks or food, especially by means of burners Warming devices with a burner, e.g. using gasoline; Travelling cookers, e.g. using petroleum or gasoline with one burner

Definitions

  • This invention relates to a portable stove, of the type used by the military, or by adventurous campers who carry all of their equipment in a rucksack. Of course, such stoves may also be used in other situations and be scaled accordingly such as humanitarian relief for example.
  • this invention relates to a portable cooking stove and cooking receptacle combination.
  • the preferred stoves of the invention may be used for cooking food, or for heating water to make a beverage such as tea or coffee, or for heating food that has been pre-cooked, and for re-constituting dehydrated food.
  • a portable stove and receptacle combination wherein the stove comprises a gas burner, a supply conduit to supply gas to the burner, the supply conduit having a connector to connect the supply conduit to a gas canister, and a support arrangement to support the receptacle above the burner; the support
  • the arrangement being a windshield, the windshield being directly connectable to the receptacle with a positive connection, the bottom wall of the receptacle and the windshield together forming a chamber surrounding the gas burner, there being apertures to enable air to reach the burner, and to permit exhaust gas to escape from the chamber.
  • the presence of the chamber surrounding the gas burner will minimise the loss of heat, and lead to efficient use of the gas in heating the contents of the receptacle.
  • the windshield will also help to reduce the chances of flame blow out.
  • the positive connection will also help reduce the risk of the receptacle slipping if the stove should tilt.
  • the receptacle has a bottom wall and a side wall, the bottom wall having relatively high thermal conductivity, and the sidewall having relatively low thermal conductivity; the combination further comprising a base of thermally insulating material, the base being configured to be connected to the bottom of the stove to provide stability for the stove, and also to be connected to the bottom of the receptacle to provide thermal insulation for the bottom wall of the receptacle.
  • the advantage of the bottom wall having relatively high thermal conductivity, and the sidewall having relatively low thermal conductivity is that more heat should be transferred to the contents of the receptacle. It is envisaged that the ability to connect the thermally insulating base to the bottom of the receptacle when the contents of the receptacle are warm may help reduce the escape of heat through the bottom wall of the receptacle.
  • the receptacle could be used separately to the portable stove and have different novel configurations or combinations such that a person could use a receptacle comprising a bottom wall and a side wall wherein the sidewall is detachable from the bottom wall; or a receptacle comprising a bottom wall and a side wall wherein the sidewall is comprised of a flexible material; or a receptacle wherein the sidewall is comprised of silicone material such as silicone rubber or more specifically silicone rubber tubing.
  • a detachable sidewall allows the bottom wall to be used as a cooking utensil, where a handle could be attached directly to the bottom wall and used for example as a frying pan.
  • the support arrangement is a windshield, the windshield being directly connectable to the receptacle with a positive connection, the bottom wall of the receptacle and the windshield together forming a chamber
  • apertures to enable air to reach the burner, and to permit exhaust gas to escape from the chamber.
  • the apertures may be formed in the windshield.
  • the presence of a positive connection between the receptacle and the support arrangement will help minimise the risk of the receptacle slipping off the stove if the stove should tilt.
  • the chamber defined by the bottom wall of the receptacle will totally contain the flame of the gas burner. This will minimise the risk of the flame blowing out, and also minimise the amount of heat wasted by convection or radiation. All of the heat of the flame will be directed onto the bottom of the receptacle.
  • the windshield is configured to contain liquid fuel or solid fuel.
  • the portable stove could be used separately to the receptacle such that a person could use a portable stove comprising a gas burner, a supply conduit to supply gas to the burner, the supply conduit having a connector to connect the supply conduit to a gas canister, and a support arrangement surrounding the burner wherein the support arrangement is configured to retain a solid or a liquid fuel or; a portable stove comprising a gas burner, a supply conduit to supply gas to the burner, the supply conduit having a connector to connect the supply conduit to a gas canister, and a windshield, the windshield surrounding the burner wherein the windshield is configured to retain a solid or a liquid fuel.
  • the bottom wall of the receptacle is dome shaped, and the windshield has a complementary bowl shape, so that the windshield, when inverted, can be accommodated within the dome shaped bottom wall of the recepta
  • the dome shape of the bottom wall of the receptacle may improve the heat transfer properties of the bottom wall.
  • the fact that the windshield can be accommodated within the dome means that the stove can be packed into a very small space when it is dismantled.
  • the stove may be supplied without a gas cartridge, but preferably, when initially supplied, the stove will incorporate a gas cartridge, the bottom of the gas cartridge constituting the bottom of the stove, when the stove is ready for use.
  • the bottom wall of the gas cartridge is dome shaped, and the windshield has a complementary bowl shape, so that the windshield, when inverted, can be accommodated within the dome shaped bottom wall of the gas cartridge.
  • the windshield can be stored in the bottom part of the gas cartridge when the stove is dismantled.
  • the base is provided with a complementary connection to engage securely with the connector of the gas supply conduit.
  • the gas supply conduit can be secured directly to the base, with the windshield and burner then being located directly above the base, the gas cartridge being omitted. This will enable the stove to be used with liquid or solid fuel with enhanced stability.
  • the receptacle has a lid of thermally insulating material, the lid having a recess to accommodate at least one component of the stove.
  • the lid will help maintain the temperature of the contents of the receptacle, and a component of the stove may be stored in the lid, again saving space, when the stove is dismantled.
  • the gas cartridge is dimensioned to be received within the receptacle. This will further minimise the space occupied by the stove when it is dismantled.
  • the bottom wall of the receptacle is provided with ribs or fins to aid the transfer of heat from the flame to the contents of the receptacle.
  • the receptacle could be used separately to the portable stove such that the receptacle comprising a bottom wall and a sidewall wherein the bottom wall of the receptacle is provided with ribs or fins.
  • the base is provided with a plurality of ground-engaging teeth.
  • the teeth may be pressed into the ground to enhance the stability of the stove and receptacle combination when in use.
  • a portable stove and receptacle combination wherein the stove comprises a gas burner, a supply conduit to supply gas to the burner, the supply conduit having a connector to connect the supply conduit to a gas cartridge, and a support arrangement to support the receptacle above the burner; the receptacle having a bottom wall and a side wall, the bottom wall having relatively high thermal conductivity, and the sidewall having relatively low thermal conductivity; the combination further comprising a base of thermally insulating material, the base being configured to be connected to the bottom of the stove to provide stability for the stove, and also to be connected to the bottom of the receptacle to provide thermal insulation for the bottom wall of the receptacle.
  • a further aspect of the invention may provide a portable stove and receptacle combination, the stove incorporating a gas burner, and a gas supply conduit to connect the burner to a gas cartridge, there being a windshield surrounding the gas burner, the windshield being bowl shaped, wherein the receptacle having a dome shaped bottom wall configured to accommodate the windshield when the stove is dismantled.
  • the windshield can be inverted and be accommodated by the receptacle bottom wall to minimise space used when the stove is stored away.
  • the shape of the bottom wall of the receptacle and the shape of the windshield can be configured so that the windshield when inverted can accommodate the connector of a gas canister when the stove is dismantled.
  • the gas cartridge having a dome shaped bottom wall this alternatively allows the bowl shaped windshield to be accommodated for storage.
  • the receptacle could be used separately to the portable stove such that the receptacle comprising a bottom wall and a sidewall wherein the bottom wall of the receptacle is configured to accommodate the connector of a gas canister.
  • the windshield is directly connectable to the receptacle with a positive connection, the bottom wall of the receptacle and the windshield together forming a chamber surrounding the gas burner, there being apertures to enable the air to reach the burner and to permit exhaust gas to escape from the chamber.
  • the invention provides a portable stove and receptacle combination in which the stove is directly connectable to the receptacle with a positive connection.
  • the invention provides a portable stove and receptacle combination, the stove incorporating a gas burner, and a gas supply conduit to connect the burner to a gas cartridge, there being a windshield surrounding the gas burner, the windshield being bowl shaped, wherein the windshield is configured to retain a solid or a liquid fuel.
  • the windshield is directly connectable to the receptacle with a positive connection.
  • the receptacle has a bottom wall which, together with the windshield forms a chamber surrounding the gas burner.
  • the windshield and the bottom wall of the receptacle have
  • the receptacle could have different configurations or combinations such that a person could use a receptacle comprising a bottom wall and a side wall wherein the sidewall is detachable from the bottom wall; or a receptacle comprising a bottom wall and a side wall wherein the sidewall is comprised of a flexible material; or a receptacle wherein the sidewall is comprised of silicone material such as silicone rubber or more specifically silicone rubber tubing.
  • the invention also provides, in another aspect, portable stove and receptacle combination comprising a ground engaging base of thermally insulating material, a gas cartridge, the ground engaging base having resilient snap fingers to engage the gas cartridge to secure the base to the lowermost part of the gas cartridge, a gas supply conduit having a connector to enable the gas supply conduit to be connected to a connection on the gas cartridge, the gas supply conduit being connected to a gas burner, there being a bowl shaped windshield surrounding the gas burner and supporting the receptacle above the gas burner, there being a positive connection between the windshield and the receptacle, the receptacle having a dome shaped bottom wall with a high thermal conductivity, and a cylindrical sidewall of low thermal conductivity, and a lid, the lid having at least one recess dimensioned to accommodate a component of the stove, the bottom wall of the receptacle and the windshield together defining a chamber that surrounds the gas burner, wherein the ground engaging base is configured to be connected to the lower part of the receptacle
  • the stove comprises a gas burner, a supply conduit to supply gas to the burner, the supply conduit having a connector to connect the supply conduit to a gas canister, and a support arrangement to support the receptacle above the burner;
  • the receptacle having a bottom wall and a side wall, the bottom wall having relatively high thermal conductivity, and the sidewall having relatively low thermal conductivity;
  • the combination further comprising a base of thermally insulating material, the base being configured to be connected to the bottom of the stove to provide stability for the stove, and also to be connected
  • the base when the stove is in use, the base will be connected to the bottom of the stove to provide the stove with stability.
  • the gas canisters used with such stoves do not have a large diameter, and so the stoves can be unstable.
  • the base may be designed to provide enhanced stability for the stove.
  • the stove has been used, and the contents of the
  • the base may be transferred to the receptacle, thus providing thermal insulation for the bottom wall of the receptacle, and helping to maintain the temperature of the contents of the receptacle. This will reduce the need to reheat the contents of the receptacle.
  • FIGURE 1 is a sectional view of a first embodiment of a portable stove and receptacle combination assembled and ready for use.
  • FIGURE 2 is a cut away perspective view of the combination of Figure 1,
  • FIGURE 3 is a sectional view of the embodiment of Figures 1 and 2 when the stove is dismantled
  • FIGURE 4 is a cut away perspective view of the first embodiment as shown in Figure 3
  • FIGURE 5 is a sectional view of a second embodiment of the invention, with the portable stove and receptacle combination assembled and ready for use,
  • FIGURE 6 is a sectional view of the embodiment of Figure 5 with the stove dismantled and the gas cartridge removed, and
  • FIGURE 7 is a sectional view of some of the components of the
  • a first embodiment of the invention is a portable cooking stove 1 and receptacle 2 combination.
  • the stove is a
  • the stove should be light, and should be capable of being packed neatly in a rucksack in the minimum of space. Also the stove should be thermally efficient, to minimise the amount of gas that has to be carried.
  • the stove 1 comprises a gas burner 3.
  • the gas burner 3 has a plurality of small apertures through which gas emerges when the stove is in use.
  • the gas burner 3 is screwed in a gas-tight manner to the upper end of a bore 4 through a rigid gas supply conduit 5.
  • the gas supply conduit 5 includes a control valve (not shown), the operating handle 6 of which can be seen in Figures 3 and 4.
  • the lower end of the gas supply conduit 5 is provided with a connector to connect the supply conduit to a gas canister 12.
  • the connector is an enlarged diameter threaded part of the bore 4 passing through the conduit.
  • a windshield 7 is provided.
  • the windshield is of a bowl shape, having a curved lower part 8 extending up to a vertical sidewall 9.
  • the top of the sidewall 9 is provided with castellations 10 (see particularly figures 3 and 4).
  • the central region of the lower part of the bowl is raised, with the raised part being secured to the burner 3 (or simply being trapped between the burner 3 and the gas supply conduit 5 as the burner 3 is screwed into place) so that, when the stove is ready for use, the windshield 7 surrounds the burner 3.
  • a plurality of apertures 31 are provided in the upper part of the windshield. It is to be noted that the windshield 7 forms an annular trough 11 which surrounds the gas supply conduit 5 and the burner 3, with the apertures 31 being located above the trough.
  • a cylindrical gas cartridge 12 is provided.
  • the gas cartridge 12 has a dome shaped bottom wall 13, and a cylindrical side wall 14 which merges into a top wall 15.
  • a connection 16 which is designed to co-operate with the connector formed by the enlarged diameter part of the bore 4 of the gas supply conduit 5.
  • the lower part of the gas supply conduit is screwed to a threaded stub that forms part of the connection 16 on the gas cartridge 12. This firmly connects the gas supply conduit 5 to the gas cartridge 12, and also open a valve contained within the connection 16 in the gas cartridge to enable the flow of gas.
  • a connection of this type is well known in the art.
  • a base 17 is mounted on the bottom of the gas cartridge 12, which constitutes the bottom of the cooker 1.
  • the base is made of a thermally insulating material, such as a plastic material.
  • the base is circular, having a peripheral upstanding sidewall 18.
  • the sidewall 18 is provided with a plurality of resilient snap fingers 19 which can engage a bead at the base of the sidewall 14 of the gas cartridge 12, thus connecting the base 17 to the bottom of the cooker.
  • the base has a membrane 20 extending across the space surrounded by the sidewall, and in the centre of the membrane there is an upstanding threaded stud 21 which has the same dimensions as the threaded stub provided in the connection 16 of the gas cartridge 12.
  • the lowermost part of the sidewall 18 of the base is provided with depending triangular ground engaging teeth 22.
  • the receptacle 2 which is of cylindrical form, being of the same diameter as the gas cartridge 12.
  • the receptacle has a circular dome shaped bottom wall 23 which is formed of a material with a high thermal conductivity, such as copper.
  • the bottom wall 23 is provided a plurality of radially extending ribs 24.
  • the ribs serve to reinforce the bottom wall 23, enabling the bottom wall to be made of a thin sheet of material while still having sufficient strength, which will improve the heat transfer properties of the bottom wall.
  • the ribs also serve to increase the total surface area of the bottom wall, thus further improving the heat transfer properties of the lower wall.
  • the use of a thin sheet also minimises the amount of copper used, and also helps to keep the overall weight to a minimum.
  • the periphery of the bottom wall 23 is connected to a cylindrical sidewall 25, for example by crimping, adhesives, riveting, spot welding, TIG welding or other known attachment means known in the art.
  • the sidewall is made to have thermal insulating properties.
  • the sidewall may simply be made of stainless steel, which, compared with copper, has a relatively low thermal conductivity.
  • Novel material combinations that could be used include an aluminium bottom wall and a flexible material such as silicone for the sidewall.
  • the sidewall could be made of silicon rubber tubing which has good thermal resistance properties and can be supplied in numerous cross sectional shapes such as cylindrical, square, triangular for example. If a cylindrical design of receptacle is used and the side wall material is silicone rubber tubing the internal diameter of the tubing and the thickness of the sidewall would need to be proportioned correctly so that the side wall is capable of holding the contents of the receptacle such as water.
  • the advantage of using a flexible material such as silicone is that the sidewall could be detached from the bottom wall of the receptacle and could be stowed away into a tight fitting space more easily than a material such as aluminium with the same sidewall thickness.
  • the attachment means for connecting the sidewall to the bottom wall of the receptacle would need to be temporary.
  • the crimping force used could be such that the sidewall could temporarily fitted to the bottom wall with a friction fit during use and then detached for storage.
  • the sidewall may be formed of other materials, or in other ways, to enhance the thermal insulation properties of the sidewall.
  • the receptacle 2 may be provided with a handle.
  • the receptacle may thus be in the form of a saucepan, or may be in the form of a drinking mug.
  • a handle could be attached to the bottom wall 23 or both the receptacle 2 and the bottom wall 2.
  • the receptacle 2 has a lid 26 made of a thermally insulating material, such as a plastic material.
  • the lid 26 is provided with a through-hole 27 through which the contents of the receptacle can be drunk while the lid 26 is in place, and also has a recess 28 which is complementary to the shape of the supply conduit 5.
  • the base 17 is connected to the lower part of the gas cartridge 12, and the gas supply conduit 5 is connected to the connection 16 of the gas cartridge 12.
  • the teem 22 maybe pressed firmly into the ground to enhance the stability of the stove.
  • the gas burner 3 and the windshield 7 are screwed into place at the top of the gas supply conduit 5.
  • the receptacle is then put in position, supported by the top of the windshield 7.
  • the configuration of the castellations 10 on the top of the windshield are complementary to the form of the radial ribs 24 at the periphery of the bottom wall 23 of the receptacle 2. The castellations 10 thus engage with the ribs and prevent rotation of the receptacle 2 relative to the stove 1.
  • the uppermost edge of the sidewall 9 of the windshield 7 extends up into the lower part of the receptacle, and thus there is a positive engagement between the stove 1 and the receptacle 2 which will prevent the receptacle sliding off the stove 1 should the stove tilt.
  • the operating handle 6 (figure 3) of the gas control valve is turned, and the gas (or gas/air mixture) then emerging from the apertures of the gas burner 3 is lit, and immediately the receptacle is put into position on the support constituted by the windshield 7.
  • a closed chamber is thus created between the receptacle and the windshield. Air may enter this chamber, and exhaust gas may exit the chamber, through the apertures 31.
  • the closed chamber will contain the flame from the burner. It is envisaged that there will be a minimal wastage of heat, as all of the heat will pass to the receptacle. Even radiant heat initially absorbed by the windshield 7 will pass, by conduction, to the receptacle 2.
  • the diameter of the receptacle 2 in this embodiment, is the same as the diameter of the gas cartridge 12.
  • the receptacle 2 may be removed from the stove 1, and the base 17 may be removed from the bottom of the gas cartridge 12, and may then be snapped into place on the bottom of the
  • receptacle 2 This will provide thermal insulation for the bottom of the receptacle 2, minimising heat loss through the excellent heat conductor forming the bottom wall 23 of the receptacle. This may be of crucial importance if the stove is being used in snowy conditions, and the receptacle is to be placed on the ground.
  • the components of the stove can be packed away in a minimum space.
  • the windshield 7 may be inverted and received within the recess formed by the domed bottom wall 13 of the gas cartridge 12, being held in place by the base 17 that is snapped into position.
  • the gas supply conduit 5 may be stored in the recess 28 provided in the lid 26. Thus the stove may be packed away neatly, taking up the minimum of space.
  • FIGs 5 to 7 illustrate a second embodiment of the invention, which in some respects is identical to the first embodiment.
  • the gas cartridge 12 and the base 17 are the same as in Figures 1 to 4.
  • the receptacle 2 is also the same.
  • the gas supply conduit 5' is shorter than in the first embodiment, but still has a connector at the lower end of the bore 4 to engage with the connection 16 of the gas cartridge 12, and an operating handle 6 for the gas control valve, and again the gas burner 3 is screwed to the top of the gas supply conduit.
  • the windshield 7' is bowl shaped, and has an aperture in the centre of the bowl dimensioned to receive the gas supply conduit 5' as a tight friction fit.
  • the exterior of the gas supply conduit 5' may be slightly tapered to enhance this effect.
  • the gas supply conduit 5 ' may be connected to the gas canister 12, and then the windshield 7' may be slid onto the gas supply conduit before the gas burner 3 is screwed into position at the top of the gas supply conduit.
  • the sidewall 9 ' of the windshield 7' is not castellated, but instead is dimensioned to be received as a secure friction fit within the lowermost peripheral part of the dome shaped bottom wall 23 of the receptacle 2. In this way a positive connection is created between the support formed by the windshield 7' and the receptacle 2 to prevent the receptacle from sliding should the cooker 1 ' tilt.
  • the windshield 7' again forms, when mounted on the gas supply conduit, an annular trough 11 ' that surrounds the gas supply conduit.
  • the windshield 7' is provided with a plurality of radial ribs 30 that mimic the radial ribs 24 in the bottom wall 23 of the receptacle 2.
  • the windshield 7' has a complementary bowl shape to the shape of the bottom wall 23.
  • apertures 3 are circular.
  • the lid 26' is similar to that of the first embodiment, but the recess 28' is dimensioned to receive only the gas burner 3, rather than the gas supply conduit.
  • FIG. 5 shows the stove of the second embodiment ready for use
  • Figure 6 shows the stove when dismantled and packed away.
  • the components of the stove have been separated and the gas burner 3 has been accommodated in the recess 28' in the lid 26'.
  • the windshield 7' has been inverted and introduced into the cavity defined beneath the dome shaped bottom wall 23 of the receptacle 2.
  • the complementary shape of the windshield 7' ensures that it fits neatly against the bottom wall 23 of the receptacle 2 using the snap fingers 19.
  • the connector of the gas supply conduit 5 that was screwed to the stub of the gas canister 12 has now been screwed to the stud 21 provided on the base 17, and the base 17 has been snapped into position on the bottom of the receptacle 2.
  • the windshield 7' and the gas supply conduit are both stored in the space between the base and the bottom wall of the receptacle.
  • the windshield 7' and the bottom wall 23 can be complimentary shaped so that when the windshield T has been inverted and introduced into the cavity defined beneath the dome shaped bottom wall 23 of the receptacle 2, the connection 16 of the gas cartridge 12 and optionally the top wall 15 and the side wall 14 can be accommodated beneath the windshield T. It would be beneficial for such a design configuration that the diameter of the receptacle 2, would be increased to be larger than the diameter of the gas cartridge 12 and neither the windshield T or the bottom wall 23 would have radial ribs. This would allow the top wall 15 of the gas cartridge 12 to be fully accommodated beneath the bottom wall 23.
  • Figure 7 shows some of the components of the embodiment of Figures 5 and 6 in an alternate configuration.
  • the connector of the gas supply conduit is screwed to the stud 21 of the base.
  • the windshield T is positioned on the gas supply conduit, but the gas burner 3 can be omitted and stored in the lid if desired.
  • the receptacle 2 is mounted on the support constituted by the
  • a solid fuel or a liquid fuel may be introduced to the annular trough 11 '.
  • the fuel may be ignited to heat the contents of the receptacle.
  • the components of the stove may be used in this way if all of the gas cartridges have been exhausted.
  • this embodiment also can be used without the gas cartridge, with the gas supply conduit being connected directly to the base, and with solid or liquid fuel being placed in the trough 11.
  • the sidewall 25 of the receptacle 2 is made of stainless steel.
  • the wall 25 may have many other forms to provide the desired heat insulating properties.
  • the sidewall may be made of any appropriate material which has low thermal conductivity, or may be made of a twin wall construction, possible with the space between the twin walls being evacuated, or being filled with a thermal insulator. Exterior thermal insulating material may also be applied to the wall.
  • the gas cartridge 12 that has been described is of a type known in the art.
  • Other types of gas cartridge are also known, and may be used in embodiments of the invention, with the relevant parts of the stove being designed appropriately.
  • some cartridges are designed to be held in a cage or housing, with the cage or housing defining a threaded bore, located immediately above the centre of the top wall of the gas cartridge, to receive a threaded part of the gas supply conduit.
  • the lowermost part of the gas supply conduit includes a sealing element to engage the surface of the gas cartridge in a gas tight manner, and an internal blade to pierce the cartridge to enable gas to flow through the bore of the gas supply conduit. It is envisaged that the stoves described above could easily be adapted for use with such a cartridge.
  • the base 17 has been described as having ground-engaging teeth 22.
  • the base may alternatively be provided with other ground engaging components to enhance the stability of the stove, including, for example, pivotally mounted feet that can be swung out from a retracted position to an extended position to increase the effective diameter of the base.
  • the receptacle maybe made to have an internal diameter slightly greater than the external diameter of the gas cartridge. If the embodiment of Figures 5 to 7 were to be modified in this way the gas cartridge could be stored within the receptacle when the stove was dismantled. It would, of course, be necessary to provide the base with two sets of resilient snap fingers 19, with one set being configured to engage the bottom of the receptacle, and another set configured to engage the bottom of the gas cartridge. This would provide a further saving of space when the stove is dismantled and packed away, with the gas cartridge contained within the receptacle.
  • the positive engagement between the windshield and the receptacle is achieved by the interconnection between a castellated upper part of the sidewall of the windshield and a ribbed bottom wall of the receptacle, or a simple friction fit.
  • the positive engagement could be achieved with a screw thread-type connection, or event a bayonet connection.
  • a stove and receptacle combination as described above may find favour with those who wish to 'break camp' rapidly.
  • the stove may be packed away, in many cases while a hot drink is still retained within the receptacle.
  • the lid of the receptacle, or the receptacle itself, may be provided with a thermometer to show the temperature of the contents of the receptacle without removing the lid of the receptacle.
  • the receptacle sidewall 25 may have a slot provided in a position near to the bottom wall 23.
  • a rubber grommet could be positioned into the slot and a thermometer attached to the grommet on the inside of the receptacle sidewall 23, to measure the temperature of the contents of the receptacle 2.
  • a glass or Perspex window could be attached to the other side of the grommet to act as a seal and prevent the contents of the receptacle 2 leaking through the sidewall 23. This would also allow a person to view the temperature range of the thermometer and read the temperature of the receptacle contents, whilst the lid 26'was fitted.
  • the stove has been described as incorporating a gas cartridge.
  • gas cartridges are frequently of an 'industry standard' design, it would be quite practicable for the stove to be sold without a gas cartridge, as the purchaser would readily be able to obtain a gas cartridge to fit the stove.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

L'invention porte sur un poêle potable (1), lequel poêle a une base venant en prise avec le sol (17) en un matériau thermiquement isolant, venant en prise avec le bas d'une bombonne de gaz (12). La bombonne de gaz (12) est reliée par une conduite d'alimentation en gaz (5) à un brûleur de gaz (3) qui est entouré par un pare-flamme en forme de bol (7). Le pare-flamme vient en prise et supporte de façon positive la partie inférieure d'un réceptacle (2), de façon à former ainsi une chambre dans laquelle le brûleur (3) est disposé de façon à minimiser la perte de chaleur. La base (17) peut être retirée de la bombonne de gaz (12), et peut venir en prise avec le bas du réceptacle lorsque le contenu du réceptacle a été chauffé afin de minimiser la perte de chaleur à travers la paroi inférieure (23) du réceptacle.
PCT/GB2011/001695 2010-12-08 2011-12-07 Poêle portable WO2012076845A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1020818.9 2010-12-08
GBGB1020818.9A GB201020818D0 (en) 2010-12-08 2010-12-08 A portable stove

Publications (3)

Publication Number Publication Date
WO2012076845A2 true WO2012076845A2 (fr) 2012-06-14
WO2012076845A3 WO2012076845A3 (fr) 2013-01-10
WO2012076845A9 WO2012076845A9 (fr) 2013-05-16

Family

ID=43531673

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2011/001695 WO2012076845A2 (fr) 2010-12-08 2011-12-07 Poêle portable

Country Status (2)

Country Link
GB (1) GB201020818D0 (fr)
WO (1) WO2012076845A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3698686A1 (fr) * 2019-02-20 2020-08-26 Primus Ab Chambre de chauffage d'un réchaud
WO2022109160A1 (fr) * 2020-11-18 2022-05-27 Johnson Outdoors Inc. Réchaud de randonnée à vanne d'extrémité

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5992407A (en) * 1999-03-09 1999-11-30 Tsai; Tien-Shen Miniature gas stove support
JP4295724B2 (ja) * 2002-06-25 2009-07-15 ジェットボイル， インコーポレイテッド 加熱容器
WO2004103133A1 (fr) * 2003-05-23 2004-12-02 Linigo Ltd Rechaud de camping portable inversable a un seul bruleur a gaz

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3698686A1 (fr) * 2019-02-20 2020-08-26 Primus Ab Chambre de chauffage d'un réchaud
US11614236B2 (en) 2019-02-20 2023-03-28 Primus Ab Heating chamber of an outdoor stove
WO2022109160A1 (fr) * 2020-11-18 2022-05-27 Johnson Outdoors Inc. Réchaud de randonnée à vanne d'extrémité
US11873990B2 (en) 2020-11-18 2024-01-16 Johnson Outdoors Inc. Backpacking stove having tip valve

Also Published As

Publication number Publication date
WO2012076845A9 (fr) 2013-05-16
GB201020818D0 (en) 2011-01-19
WO2012076845A3 (fr) 2013-01-10

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