Abstract: Photonic and electronic integrated circuits can be cooled using variable conductance heat pipes containing a non-condensable gas in addition to a phase-changing working fluid. To package the heat pipe with a subassembly including the integrated circuits in a standard housing providing a heat sink contact area, the heat pipe is oriented, in some embodiments, with its axis between evaporator and condenser ends substantially perpendicular to the direction along which the integrated circuit subassembly is separated from the heat sink contact area, and a portion of the exterior surface of the heat pipe is thermally insulated, with a suitable thermal insulation structure, from the heat sink contact area.

Abstract: A fire starter device with a cloth or paper substrate, such as a herringbone cloth material, which is coated in a micro crystalline wax. Paraffin wax may also be added to the mixture in a small amount. The device is cut into strips which can be rolled or otherwise positioned to create a fire starter. The ends of the substrate may be left uncoated to promote lighting the ends with a fire source. An auto-starter element can be built into the fire starter near one of the ends. The substrate may be died or printed with a logo or other elements. The wax may be scented.

Abstract: Photonic and electronic integrated circuits can be cooled using variable conductance heat pipes containing a non-condensable gas in addition to a phase-changing working fluid. To package the heat pipe with a subassembly including the integrated circuits in a standard housing providing a heat sink contact area, the heat pipe is oriented, in some embodiments, with its axis between evaporator and condenser ends substantially perpendicular to the direction along which the integrated circuit subassembly is separated from the heat sink contact area, and a portion of the exterior surface of the heat pipe is thermally insulated, with a suitable thermal insulation structure, from the heat sink contact area.

Abstract: A combustion device includes a stove body and a flow guiding device. The stove body has first and second sides disposed oppositely and includes a wick disposed between the first and second sides. The wick is spaced from the first and second sides at first and second distances respectively. A flow guiding device includes first and second shielding members respectively connected to the first and second sides of the stove body. The wick is spaced from the first and second shielding members at third and fourth distances respectively. The third distance is greater than the first distance and the first shielding member is spaced from the first side. The fourth distance is greater than the second distance and the second shielding member is spaced from the second outer side.

Abstract: A system includes a torch top having a wick holder extending along a portion of a wick in contact therewith for retaining the wick to extend from a lower side of the torch top to a level above an upper side the torch top. The system includes an adjustment sleeve exterior and concentric to the wick holder and moveable to extend upwardly to such an elevation as to be at least partially above an uppermost portion of the wick holder.

Abstract: Methods and systems for clean-up of hazardous spills are provided. In some aspects, there is provided a system for burning an water-oil emulsion that includes an enclosure configured to hold a water-oil emulsion; one or more conductive rods disposed throughout the enclosure, each rod of the one or more roads having a heater portion to be submerged in the water-oil emulsion and a collector portion to project above the water-oil emulsion, wherein the collector portion is longer than the heater portion; and a delivery system for supplying an water-oil emulsion to the enclosure, the delivery system is configured to maintain a constant level of the water-oil emulsion in the enclosure as the water-oil emulsion is burned. The enclosure may further include one or more adjustable air inlets.

Abstract: A catalytic fragrance burner assembly, comprising: a porous core of sintered material; a catalyst, deposited on or around the core; and a wick, in communication with the porous core, and arranged to draw fuel to the core.

Abstract: Injection nozzle 7 and electrode rods 8 and 9 (ignitor) are surrounded by double-cylinder flame stabilizer 10. Toroidal blocking plate 13 closes between inner and outer cylinders 11 and 12 of the stabilizer at its distal end whose proximal end is connected with line 15 for introducing combustion air 14 to between the cylinders. Inflow holes 16 are formed throughout the inner cylinder at its proximal end. Peripheral fins 17 are formed peripherally on the inner cylinder radially inwardly through cutting and bending-up at positions shifted from the inflow holes toward the distal end of the inner cylinder such that combustion air is introduced from circumferentially to form swirling flow inside the inner cylinder. End fins 18 are formed on the blocking plate in fuel injection direction through cutting and bending-up such that combustion air is discharged circumferentially to form swirling flow around flame 21.

Abstract: A safe combustion device includes a housing. A wick is disposed in the housing. The wick has a top end at a first distance from a bottom surface of the housing. A guiding device is connected to the housing and includes at least one shade. The at least one shade has bottom and top sides at second and third distances from the bottom surface of the housing respectively. The second distance is shorter than the first distance. The first distance is shorter than the third distance. The at least one shade has an inner lateral side adjacent to the wick. The at least one shade and the housing include a flow passage formed therebetween.

Abstract: A bottom assembly unit for a vaporizing burner combustion chamber assembly unit, especially for a vehicle heater, includes a bottom part (24) with a bottom wall. A porous evaporator medium (44) at least partially covers the bottom wall on a front side (42) positioned such that it faces a combustion chamber (20). A ring-shaped holding part (34) has a contact area (40) touching the porous evaporator medium (44). The contact area has a contact section (62) extending radially inwardly from a holding part circumferential wall (36) and extends over the porous evaporator medium (44) in a radially outer area (66). A plurality of contact projections (68) are arranged at spaced locations from one another about the longitudinal axis and extend in the direction of the porous evaporator medium. The porous evaporator medium (44) is pressed by the contact projections (68) in a radially outer area (66) against the bottom wall.

Abstract: Provided is a cooking appliance. Steam generated in a steam generation part is selectively supplied into a cooktop part or a steam cooking part. The steam supplied into the cooktop part is used for cleaning a top plate. Also, the steam supplied into the steam cooking part is used for cooking a food. Thus, the steam may be used in a lot of uses, e.g., for cooking the food and cleaning the top plate.

Abstract: The present invention involves a combustion apparatus for utilizing as an oil candle. The apparatus is a material suitable for forming a heat sink, having a ring or cylinder for enclosing a wick which wick extends into oil suitable for oil candles, and a heat sink extending from the wick holder or forming the wick holder and connecting to or forming a base for distributing heat evenly along the heat sink within the oil to prevent flashover. The apparatus preferably utilizes a metal fiber wick and may comprise multiple wick holders.

Abstract: A liquid fuel cell that includes a canister having a fuel reservoir and a burner assembly mounted upon the canister. The burner assembly contains a wick holding aperture that opens into the fuel reservoir and a wick that is made up of continuous fiber strands mounted in the tube. The wick is doubled over to create a crown that is vertically disposed above the top of the wick holding aperture and the two ends of the wick are arranged to pass down through the wick burner into the fuel reservoir. A number of fiber strands are severed in the crown region to create a small island of bristles which greatly enhances the wick's ability to be rapidly and efficiently ignited.

Abstract: The invention relates to a fuel paste tin, comprising a dished tin body (1) and a sealing lid (3), fixed to the tin body (1) with two pre-scored lines (6), along which a partial lid section (7) may be removed from the sealing lid (3) by breaking a material connection to generate a precisely defined opening (4, 10, 11) in the sealing lid (3). The invention permits the production of fuel paste tins with may be employed directly as paste burners with a desired burn capacity and burn duration, which are economic to produce and cause little litter.

Abstract: A non-thermostatic heating device is provided with temperature range control whereby materials may be heated and melted to a safe or desired temperature and maintained, particularly soy based non-candle formulated waxes for skin therapy as well as aromatherapy waxes generally. The device is vented and comprises a non flammable insulative container such as treated paper tubing and semi insulative elements, particularly one or more enclosed air pockets which are predetermined in dimension or movable for change in volume to provide a desired equilibrium temperature range.

Abstract: This invention provides an improved chamber within the can of a canned heat product that allows more complete combustion due to a better mixing of air and gasified fuel which eminates from fuel on the surface of a fibrous fill. This improved mixing is the result of pulling cold outside air into the outer annulus of the combustion chamber where mixing occurs prior to ignition and also cools the fuel holding fiber as well as providing a steady height point of maximum temperature due to the combustion.

Abstract: An oil lamp for providing a unique flame formation usable in a variety of decorative applications. The lamp includes a body that has an open upper end and that defines a chamber for carrying a combustible liquid. The lamp further includes a planar wick having a lower end located in the chamber of the body, for contacting the combustible liquid, and an upper end projecting upwardly from the open upper end. The wick may be positioned between first and second plates arranged in a spaced, confronting relationship to enhance capillary action or may be wrapped about a rigid plate. When lit, the lamp provides a unique flame formation. Optionally, the lamp may include scented oil and a conductive element to promote the release of fragrance upon heating, and the wick can be configured free of material having a high heat conductivity.

Abstract: A portable hiking or camping stove, having a base member with an opening dimensioned to receive a burner therein; and three side members dimensioned so as to be assembled together to support the base member therebetween.

Abstract: A cup warmer is essentially comprised of a support, a base and a warming plate; the base and the warming plate being respectively provided at the bottom and top of the support; a candle plate being placed on the base and a cup on the warming plate, the heat from the burning candle being concentrated and restricted by heat fender disposed at the warming plate, then released through central opening and air guide passage of the warming plate to keep warming the cup, thus the contents therein.

Abstract: A heating fuel canister typically used for heating food in a buffet line includes a housing for containing a volume of liquid fuel, the housing having a continuous cylindrical sidewall and a bottom wall. An interseal top surface is affixed to a top edge of the cylindrical sidewall and includes a threaded neck having a center penetration formed there through. The threaded neck is integral with the interseal top surface. A pan-shaped disk is press-fitted into the center penetration of the threaded neck. A fiberglass layer is positioned upon the pan-shaped disk. Finally, a fiberglass wick is extended from within the housing and is passed through the pan-shaped disk and the fiberglass layer for drawing liquid fuel into the fiberglass wick and the fiberglass layer for providing a broad, hot uniform flame when ignited.

Abstract: A chafing dish fuel canister is provided with a side wall having a lower section, a middle section and an upper section wherein the lower section and the upper section are substantially vertically extending and the middle section is an angled wall, the middle wall section extending outwardly from the lower wall section at an angle of from about 55 to 85 degrees. This creates a tilt angle such that the flame does not burn the lid or side wall of the fuel canister. The chafing dish fuel canister is preferably of a transparent plastic material and upon being overturned maintains the fuel product therein in a safe condition without spillage.

Abstract: A chafing dish fuel canister is provided with a side wall having a lower section, a middle section and an upper section wherein the lower section and the upper section are substantially vertically extending and the middle section is an angled wall, the middle wall section extending outwardly from the lower wall section at an angle of from about 55 to 85 degrees. This creates a tilt angle such that the flame does not burn the lid or side wall of the fuel canister. The chafing dish fuel canister is preferably of a transparent plastic material and upon being overturned maintains the fuel product therein in a safe condition without spillage.

Abstract: The combustible fuel source of the invention includes a body comprising a porous carrier and a solid fuel. When combustion is established the fuel is vaporized and combusted on one or more surfaces of the body, In the internal part of the body the solid fuel vaporized and the vaporized fuel moves through the porous carrier to one or more surfaces of the body wherein it is combusted. A portion of the heat resulting from this combustion maintains the vaporization of the solid fuel for continued combustion. A variety of materials can be used as the porous carrier, including combustible materials such as paper fibres, cloth, pulp fibres, powdered coal or charcoal and non-combustible materials such as ground pumice, sand or ceramic materials. A variety of solid fuels can be used, including paraffin wax, beeswax and other waxes or wax-like materials derived from animal and/or vegetable processing.

Abstract: A vaporization module is provided that includes a capillary member to convert non-pressurized liquid to pressurized vapor. The pressure is sustained by capillary pressure of the liquid in the capillary member. The capillary member has low thermal conductivity and small-sized pores that permits liquid to travel by capillary action toward the vaporization zone. Often, the pores of the capillary member are substantially uniform in size. The capillary member may comprise ceramic material. The module also includes an orifice plate that has one or more orifices to permit release of pressurized vapor, e.g. as a pressurized vapor jet. The orifice plate is associated with a sealing member to form an at least partial enclosure of the module so that vapor may accumulate and pressure may be increased within the module. In addition, other aspects of the present invention relating to the vaporization and pressurization of liquid are described.

Abstract: A vaporization/pressurization module employs a porous member having a low thermal conductivity and a substantially uniform, small pore size. Liquid feed is introduced to the porous member and is heated, vaporized, and pressurized within and/or on a surface of the porous member to produce a vapor jet having a pressure higher than that of the liquid feed. A substantially vapor impermeable barrier facilitates accumulation and pressurization of the vapor, which is released from the module as a pressurized vapor jet from one or more restricted passages. The vaporization/pressurization module is especially useful for liquid fuel combustion applications.

Abstract: A specially-shaped wick holder 12, in conjunction with an irregularly-shaped hole 14 in a reservoir 10 provides cooling and liquid-flow properties not obtainable with previous liquid-fuel candles. A fuel replenishment process further enhances the oil-free external environment.

Abstract: A warming device having a base plate on which is positioned a heat source. A plurality of carrier struts are pivotally mounted with respect to the base plate and are circumferentially arranged and each have a part surface. The part surfaces together form a standing surface. On the carrier struts are arranged lugs which each has an eccentric platelet and a lug pin. An actuation element, such as an annular disk, has radial slots into which the lug pins engage. By rotating the actuation element all carrier struts can be pivoted with the part surfaces to vary a size of the standing surface.

Abstract: A liquid fuel burner has a wick for drawing up by capillarity of a draw-up section liquid fuel composed mainly of alcohol contained in a fuel tank and for burning it at a tip flame-producing section, a wick holder for holding the wick, an igniter for lighting the wick and a closure cap for preventing evaporation capable of sealing the wick openably and closably, and a flame-producing section of the wick is made noncircular in cross-sectional shape to increase the surface area exposed above the wick holder.

Abstract: A vaporization/pressurization module employs a porous member having a low thermal conductivity and a substantially uniform, small pore size. Liquid feed is introduced to the porous member and is heated, vaporized, and pressurized within and/or on a surface of the porous member to produce a vapor jet having a pressure higher than that of the liquid feed. A substantially vapor impermeable barrier facilitates accumulation and pressurization of the vapor, which is released from the module as a pressurized vapor jet from one or more restricted passages. The vaporization/pressurization module is especially useful for liquid fuel combustion applications.

Abstract: Variable-heat chafing-dish burners and methods of use. One variable-heat chafing-dish burner embodiment has a reservoir with liquid fuel, into which a short wick and a long wick extend. Both wicks are lit initially, in order to provide initial high heat to bring chafing-dish water quickly to temperature. As fuel is consumed by the flames fed by both wicks, the fuel level within the reservoir drops. The short wick initial immersed length is set such that at the approximate time the chafing-dish water has been brought to temperature, the short wick is no longer immersed in fuel, and the flame it fed is extinguished due to fuel starvation. After the flame fed by the short wick is extinguished, only the flame fed by the long wick remains lit, thereby providing the lowered heat required to maintain the chafing-dish water at temperature. In this manner, a high initial heat is provided to bring chafing-dish water quickly to temperature, and lower heat is provided thereafter to save fuel.

Abstract: A portable or canned heat product is made where a liquid fuel is added to a filler made of bicomponent curled fibers with the fibers substantially oriented such that the axes of the fibers are parallel to the axis of a container holding these fibers and this filler and fuel provides an easy to ignite wick free heating device and a method to make ignition of a fiber surface easier.

Abstract: A personal heating device includes a chamber having a closed end and an opposing open end. One or more air intake holes are formed in the chamber proximal the closed end to allow air into the chamber. One or more vent holes are formed proximal the opposing open end to allow air to exit the chamber. A heat source disposed inside the chamber holds generates heat, and a cap slidably covers the chamber open end to hold in the heat and regulate the air exiting the vent holes.

Abstract: A fuel container (10) for a spirit stove, including a can-shaped lower part (11), a cover (12), a net and a spacer for maintaining a space between the cover and the net. The cover has an inner edge which defines an opening (15). The opening receives an upwardly extending portion (18) of the net (17). The net extends below the cover and is held in position in the fuel container. The spacer (20, 21) is arranged between the net and the cover. An absorbing mass (14) is disposed within the fuel container for absorbing liquid fuel. The upwardly extending portion (18) of the net (17) has an area which is less than an area of the opening (15), thereby creating a passage (23) between the inner edge of the cover and the upwardly extending portion (18) of the net through which fuel may flow into the container.

Abstract: A disposable fuel burner 10 is disclosed which comprises a container 11 having a closed bottom wall 12, an enclosing sidewall 13 and an open top 14, and at least partially filled with a liquid fuel 15. A support member 16 is supported adjacent the open top 14 above the fuel 15, and having a centrally located opening 17 of various diameters for receiving one end of an elongated wick 18 of a fibrous material. The support member 16 may be a cardboard or plastic disk supported on legs 21a, a cylinder 21, or may be a cup-shaped member 30. A first layer of fibrous material 22 substantially fills the open top 14 and overlies the support member and the end of the wick supported thereon and acts as an interface between the fuel 15 and the atmosphere. A second layer of a plastic 23, e.g., polyurethane, foam material overlies the first layer. A top cover 27 is secured on the container 11 closing the open top 14 and is at least partially removable, e.g.

Abstract: A portable gas-stove which includes a housing, a burner, a C-shaped tubular gas storage container a plurality of retaining hooks, an ignition means, and a top cover. The housing is provided with a plurality of air vents, base portion with a fixing slot for receiving the ignition means and a plurality of hook holders for holding the retaining hooks in place. The retaining hooks have arcuate hook portions for hooking and fixedly holding the gas storage container in the housing. The burner is centrally mounted in the housing and is provided at one side with a gas inlet. A gas connecting tube is connected between the gas inlet of the burner and a gas outlet on the gas storage container. The gas storage container can be refilled at any time by removably connecting a small gas cylinder to the container. This enables the gas-stove to be conveniently carried for use outdoors.

Abstract: A fire retardant, portable chafer structure is disclosed. The chafer structure includes four sides and a bottom defining a generally rectangular-shaped structure having an interior chamber therewithin. The bottom is connected along a lower edge of each of the four sides to define a bottom tray adapted for holding and containing spilled material. A chafer rack is provided for placement in nested engagement within the chafer structure. One of the four sides has an aperture for providing access to the interior chamber by a user. Handles are provided on upper portions of the chafer structure.

Abstract: A fuel cell for use in warming or heating of food in a chafer dish, outdoor supplemental lighting, and emitting of insecticide. The fuel cell including a fuel holding cavity with a lid thereon, and a wick submerged within the fuel and extending out of the lid through a hole. The fuel cell further including a recess in the base for allowing stacking of fuel cells by receiving the wick of an adjacent fuel cell during stacking. The recess further used for receiving a support when it is desirous to suspend the fuel cell in the air such as to provide supplemental outdoor lighting or the emission of insecticide. The fuel cell also including a stem-sleeve combination for supporting the wick within the hole.

Abstract: The wick-interrupt temperature controlling heat pipe (WITCH) is a device for controlling the temperature of spacecraft temperature-sensitive, heat dispensing devices. A heat transporting working fluid is conveyed in saturated equilibrium with its vapor across a discontinuous internal capillary liquid wick, within a tubular cylindrical pressure vessel, from a condenser section to an evaporator section located on either side of the discontinuity. When the temperature within the WITCH rises to a predetermined level, a sliding wick located within the internal capillary liquid wick is inserted across the discontinuity by a temperature sensitive control rod, thereby allowing the heat transporting working fluid to circulate from the condenser section wick to the evaporator section wick. In this configuration, the WITCH operates identically to the "constant-conductance heat pipe" commonly used.

Abstract: A portable stove has an upper disk, a lower disk, an oil can and three support rods disposed between the upper disk and the lower disk. Three boiler support plates are disposed on the upper disk. A boiler is disposed on the boiler support plates.

Abstract: A cooking fuel device includes a fuel container and a cover attached to the top of the container. The cover includes a central toroidal shaped aperture positioned over the top of the container to define a toroidal burn area for a fuel in the container. An optional wick positioned below the cover is formed from a piled fabric includes a burn portion and a fuel feed portion extending to the fuel in the container.

Abstract: A disposable fuel burner 10 is disclosed which comprises a container 11 having a closed bottom wall 12, an enclosing sidewall 13 and an open top 14, and at least partially filled with a liquid fuel 15. A support member 16 is supported adjacent the open top 14 above the fuel 15, and having a centrally located opening 17 of various diameters for receiving one end of an elongated wick 18 of a fibrous material. The support member 16 may be a cardboard or plastic disk supported on legs 21a, a cylinder 21, or may be a cup-shaped member 30. A first layer of fibrous material 22 substantially fills the open top 14 and overlies the support member and the end of the wick supported thereon and acts as an interface between the fuel 15 and the atmosphere. A second layer of a plastic 23, e.g., polyurethane, foam material overlies the first layer. A top cover 27 is secured on the container 11 closing the open top 14 and is at least partially removable, e.g.

Abstract: A cap for closing the burner of a liquid fuel cell and protecting the burner wick. The burner wick has upraised adjustable tabs that can be separated to control the heat output of the cell. The cap contains a die member that is arranged to move between the tabs when the cap is closed over the burner to position the tabs at a desired standard heat setting that is best suited for a majority of fuel cell applications.

Abstract: A disposable, adjustable flame, canned fuel apparatus comprises a container having closed sides and bottom and having an open top; a fuel absorbent pad disposed in upper regions of the container relatively adjacent to its open top; a flammable liquid disposed in the container; an elongate wick disposed in the container and having an upper end region in fluid communication with the pad and having a lower end region extending into lower regions of the container and into the flammable liquid contained therein; and an adjustable flame assembly attached across the top of the container.

Abstract: A container defining an outer housing includes a base, a surrounding side wall structure extending upwardly from the base, and a top wall having a central opening therethrough exposing an interior chamber containing a liquid fuel supply, including diethylene glycol and an isoparaffin mixture. A fibrous material filled within the interior chamber is structured and disposed to hold and stabilize the diethylene glycol which fills pockets throughout the fibrous material to form a stabilized gel-like mass. An ignitor cord extending upwardly from the base within the interior chamber and through the central opening delivers the isoparaffin mixture by capillary action from a bottom of the interior chamber to an exterior, exposed portion of the ignitor cord to facilitate initial igniting thereof and subsequent igniting of the diethylene glycol on an upper exposed surface of the fibrous material.

Abstract: This invention relates to a spirit stove. The spirit stove comprises a top (11) which is provided with at least one hot plate (15) of hear conducting material which is placed so that the plate joins the top. The stove has a spirit burner (33, 36, 37, 38) which is placed below the plate and to which air flows and from which fumes leave by natural ventilation. The plate is surrounded by a heat insulating material (23) having a surface which is exposed to the flames and/or the fumes.

Abstract: A die-cut wick for use in the burner of a disposable fuel cell formed from a single sheet of wicking material so that the wick has two symmetrical half-sections situated on either side of a vertical center line and which are folded along the center line into a face-to-face alignment. Each half-section further includes an elongated lower body segment containing a horizontally-disposed upper edge, a narrow neck segment centered on the upper edge of the body segment and a tab vertically extending therefrom to a given height. The neck is slidably received within a burner of a fuel cell so that it can be raised or lowered between limits to control the flame height and the amount of heat produced by the burner. The tabs are foldable toward and away from each other to further control the flame geometry and distribution of the heat.

Abstract: A candle holder with devices for allowing fragrance to be volatilized and for warming a cup. The candle holder has a base with a holder attached thereto and a positioning seat with a socket formed therein. A plurality of vents are formed in the base which introduces fresh air into a wind shield which is placed around the seat. A top of the wind shield is placed a bowl on which fragrance is deposited. On top of the bowl is an upper supporting device on which a cup is placed.

Abstract: A cooking apparatus adapted to burn liquid fuel including a container defining an outer housing and having a base, a surrounding side walls structure, and top, the top having an opening therethrough in exposing relation to an interior chamber of the container wherein a fiberglass material is disposed in substantially filling relation and is structured to hold and regulate the movement of liquid fuel therein so as to prevent spillage of the liquid fuel from within the container, the liquid fuel being delivered to an upper exposed surface of the fiberglass material adjacent to the opening of the top by a braided fiberglass ignitor cord, which further facilitates igniting and provides for the continuous burning of the fuel at the upper exposed surface, and the fiberglass material being contained within the interior chamber by a retainer screen disposed in covering relation over the opening in the top of the container.

Abstract: A closure for a liquid or a semi-liquid fuel can having an ignitable wick is provided. The wick is mounted to the can closure with a coil spring structure so that the wick can be depressed and extended relative to the upper surface of the can closure. A recessed portion is defined in the upper surface of the canned closure for receiving the wick in its depressed condition and the compressed wick is retained therewithin with a peelable seal. Removal of the peelable seal allows the wick and coil stem assembly to extend to an operating position wherein the wick can be easily ignited.

Abstract: A cooking fuel can closure is provided wherein at least one aperture is defined through the upper surface of the can and a peelable seal such as a thin metal foil is secured by, for example, adhesive to the upper surface of the can peripherally of the opening through the can. Further, a plurality of peripheral openings can be defined about a central aperture in the can so as to facilitate flow of oxygen to the burning fuel thereby using less fuel while still obtaining the same or better burn efficiency of the cooking fuel. Finally, a wick element can be provided centrally of the cooking can closure in a concave portion which is peripherally sealed prior to use by a peelable seal so as to prevent leakage therethrough.