PORTABLE STOVE WITH FOLDING STAND
20240053019 ยท 2024-02-15
Inventors
Cpc classification
F24B15/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24C3/14
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24B5/026
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24C1/16
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
F24B1/181
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Abstract
A stand is provided for elevating a portable stove above a surface. The stand includes a central intersection and a plurality of legs. Each leg includes an inner link extending radially outward from the central intersection, and an outer link connected to the inner link by a hinge. The outer link is thus movable to a position extending radially outward from the inner link. Each leg also includes a foot coupled to, and extending transverse to, the outer link. Each foot includes a standoff extending transverse from the outer link in a first direction, and an interference arm extending transverse from the outer link in a second direction opposite the first direction.
Claims
1-23. (canceled)
24. A method for elevating a portable stove above a surface, comprising: providing a stand for the portable stove, the stand comprising: a central intersection; and a plurality of legs, wherein each leg comprises: an inner link extending radially outward from the central intersection; an outer link connected to the inner link by a hinge, the outer link movable to a position extending radially outward from the inner link; and a foot coupled to and extending transverse to the outer link, the foot comprising: a standoff extending transverse from the outer link in a first direction; and an interference arm extending transverse from the outer link in a second direction opposite the first direction.
25. The method of claim 24, wherein the hinges, the inner link, and the outer link are structurally configured such that the outer link can rotate downward but not upward.
26. The method of claim 24, wherein when the stand is configured such that when the stove is rested on the stand, a bottom portion of the stove rests on at least one of the central intersection or the plurality of legs.
27. The method of claim 24, wherein a surface of each standoff portion comprises a pad fixedly attached to the standoff portion.
28. The method of claim 27, wherein the pads include at least one of a thermal insulation property, an anti-slip property, or a vibration suppression property.
29. The method of claim 27, wherein the pads comprise a rubbery material.
30. The method of claim 24, wherein the outer link of each leg is movable to a folded position.
31. The method of claim 30, wherein when at least some of the outer links are in the folded position, the stand is positionable inside the stove.
32. The method of claim 24, wherein a height of the standoffs is selected to minimize heat transfer between the stove and the surface.
33. The method of claim 24, wherein when all of the outer links are in the position extending radially outward, a width of the stand is such that the stove fits between all of the interference arms, and such that the stove is arrested from motion in any radially outward direction.
34. A method for storing a stove stand within a stove, the method comprising: providing a stove, the stove comprising: an outer body having an outer width; a cavity having an inner width; and a bottom portion; and providing a stand, the stand comprising: a central portion; and a plurality of inner portions extending radially outward from the central portion; and a plurality of outer portions, each outer portion pivotably attached to an inner portion of the plurality of inner portions and pivotable from a first position parallel with the respective inner portion to a second position angled relative to the respective inner portion, the stand having a first width when the outer portions are in the first position and having a second width smaller than the first width when the outer portions are in the second position, the first width being greater than the outer width of the stove and the second width being smaller than the inner width of the cavity of the stove, such that when the outer portions are in the first position, the bottom portion of the stove can be rested on the central portion, the inner portions, and the outer portions, and such that when the outer portions are in the second position, the stand can be fitted into the cavity of the stove.
35. The method of claim 34, wherein the stand comprises a foot at an end of each outer portion, the foot comprising: a standoff extending transverse from the outer link in a first direction; and an interference arm extending transverse from the outer link in a second direction opposite the first direction.
36. The method of claim 35, wherein the stove and stand are configured such that when the stove is on the stand: the bottom portion of the stove rests on at least one of the central portion, the inner portions, and the outer portions, and the standoff of each outer portion arrests the stove from moving laterally beyond a radial position.
37. The method of claim 35, wherein a height of the standoffs is selected to minimize heat transfer between the stove and a surface upon which the stand is rested.
38. The method of claim 35, wherein a surface of each standoff portion comprises a pad fixedly attached to the standoff portion.
39. The method of claim 38, wherein the pads comprise a rubbery material providing at least one of a thermal insulation property, an anti-slip property, or a vibration suppression property.
40. The method of claim 34, wherein the stove and stand are configured such that when at least some the outer portions are in the second position, the stand can be stored within the cavity.
41. The method of claim 34, wherein the inner portions and the outer portions are structurally configured such that the outer portions can rotate downward but not upward relative to the inner portions.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Illustrative embodiments of the present disclosure will be described with reference to the accompanying drawings, of which:
[0015]
[0016]
[0017]
[0018]
[0019]
[0020]
[0021]
[0022]
[0023]
DETAILED DESCRIPTION
[0024] Disclosed herein is a stand for a portable stove for use in environments where a heatproof surface is not available on which to place the stove. The stand may be used with a portable stove that can burn solid fuel such as sticks, branches, paper, cardboard, etc. The stove can be used in conjunction with pots and pans to, for example, boil water, cook eggs, heat rehydrated foods, etc. Alternatively, or in addition, the stove may be used for roasting, browning, or toasting foods, or as a heat source. In some aspects, the stand is foldable. In its folded state, the stove stand can be disposed inside the stove body for transportation or storage. In its unfolded state, the stove stand includes legs and feet that are sized and shaped to restrain movement of the stove, and to offset the bottom surface of the stove a safe distance away from the tabletop or other placement surface during cooking or other use of the stove.
[0025] For the purposes of promoting an understanding of the principles of the present disclosure, reference will now be made to the embodiments illustrated in the drawings, and specific language will be used to describe the same. It is nevertheless understood that no limitation to the scope of the disclosure is intended. Any alterations and further modifications to the described devices, systems, and methods, and any further application of the principles of the present disclosure are fully contemplated and included within the present disclosure as would normally occur to one skilled in the art to which the disclosure relates. In particular, it is fully contemplated that the features, components, and/or steps described with respect to one embodiment may be combined with the features, components, and/or steps described with respect to other embodiments of the present disclosure. For the sake of brevity, however, the numerous iterations of these combinations will not be described separately.
[0026] These descriptions are provided for exemplary purposes only and should not be considered to limit the scope of the stove and stand system. Certain features may be added, removed, or modified without departing from the spirit of the claimed subject matter.
[0027]
[0028] In the example shown in
[0029] In some examples, the stove body 110 has a generally cylindrical shape with a circular cross section, although in other examples it may have shapes with other cross-sections, including but not limited to oval, square, rectangular, triangular, or polygonal. The stove 105 may be used to provide heat, provide ambience, for cooking, or for other desirable purposes. In this example, the stove 105 includes a top bezel or pot support 130 that rests on an upper portion 150 of the stove body 110. The top bezel or pot support 130 is configured to support the weight of, for example, a frying pan of a water-filled pot, although the stove can be used with its top open for roasting marshmallows, hot dogs, or other foods.
[0030] The example stove and stand system 100 also includes the stand 120. In the example shown in
[0031] This configuration advantageously permits the stove and stand system 100 to serve as an aesthetic source of firelight ambience, a heat source, and/or a cooking stove, whether simultaneously or at different times. The size and structure permit the stove and stand system to be used on a tabletop or other surface, about which people may socially gather to build relationships, share time, and create memories. For example, the stove and stand system 100 may be placed on the placement surface 180 as a tabletop centerpiece that allows users seated around the table to see, read, warm their hands, and/or roast food such as marshmallows or hot dogs, or heat foods in a cooking pot, pan, or grill that is rested on the top bezel 130. The simple proximity of a stove sized to fit on a tabletop to people gathered about the table may create certain interactions not achievable by a firepit or stove intended to rest on the ground. Such multi-functionality, in a small device that fits on a tabletop or other surface, and is easily portable and storable, provides clear advantages over existing firepits, camp stoves, tiki torches, and other combustion devices.
[0032] Before continuing, it should be noted that the examples described herein are provided for purposes of illustration and are not intended to be limiting. Other devices and/or device configurations may be utilized to carry out the operations described herein.
[0033]
[0034]
[0035] Each leg 230 includes an inner link 240 that projects radially from the central region 220. In some examples, the inner links 240 and the central region 220 form a single piece that may, for example, be stamped from a sheet metal blank. In other examples, the inner links 240 may be attached to the central region 220 by welds, solder, brazing, bolts, screws, rivets, pins, or otherwise. Each leg also includes an outer link 260 that is rotatably attached to the inner link 240 by a hinge 250 located at a radially outermost portion of the inner link 240 and a radially innermost portion of the outer link 260. The hinge 250 is configured to transition the outer link 260 from a first, unfolded configuration (shown here in
[0036] Each leg also includes a foot 270, located at a radially outermost portion of the outer link 260 such that, when the stove body 110 is placed on the stand 120, the bottom surface 215 of the stove body 110 is stood off from the placement surface by a sufficient distance to limit or prevent heat damage to the placement surface 180 from heat generated by the combustion of fuel within the stove body 110, and such that the stove body 110 is arrested from lateral movement in a radial or horizontal direction.
[0037]
[0038]
[0039] The top bezel or pot support 130 may for example rest removably on the top lip 440. The inner wall 310 rests removably on a choke pan 410. Within the combustion chamber 330 is a quantity of combustible solid fuel 470, supported by the fuel or fire grate 320. The fire grate 320 is supported by the choke pan 410. Within the choke pan 410, below the fire grate 320, is an ash pan 420, which receives ashes and other combustion remnants that fall through the fire grate 320 as the fuel 470 is combusted. The ash pan 420 is positioned centrally within the choke pan 410 by a plurality of ash pan spacers 430 (e.g., three, four, or more ash pan spacers 410), which project inward from the wall of the choke pan. Below the ash pan 420 is an air-damper 480 with a central air passage 482.
[0040] The bottom surface 215 of the stove body 110 is attached adjacent to a bottom edge of the outer wall 102. The bottom surface 215 of the stove body 110 may rest on the stand 120, such that the bottom surface 215 is spaced from the placement surface 180 (e.g., a tabletop) by a height H, which limits heat transfer between the bottom surface 215 and the placement surface 180. This may help to prevent heat damage to the placement surface 180, in cases where the placement surface 180 is a non-heat-resistant surface.
[0041] Air may flow through the three rows of ventilation holes 170, and then divide to flow upward to the ventilation holes 350 and to flow toward the combustion chamber 330 by flowing between the air-damper 480 and the bottom surface 215, through the central air passage 482, and around the bottom of the ash pan 420, upward toward the fire grate 320, and above the ash pan 420 into the combustion chamber 330. In addition, the configuration shown in
[0042]
[0043]
[0044]
[0045] In the example in
[0046] The standoff 720 and pad 730 are sized and shaped such that a top surface 740 of the stand 120, on which the stove body will rest, is a height H above the placement surface (e.g., a wooden picnic table). Depending on the implementation, the bottom surface of the stove body may rest on at least a portion of the central region 220, at least a portion of the inner links 240, at least a portion of the outer links 260, at least a portion of the interference arms 710, or any combination thereof. In the implementation shown, the central region 220 is also an intersection of the inner links 240. The inner links 240 cooperate with and overlap the outer links 260 in a manner that allows the inner link to fold from a position parallel to the inner link in only one direction. Accordingly, when loading applied to the stand 220, the overlapping nature of the inner links 240 and the outer links 260 prevent the inner link from pivoting beyond parallel so that the central region 220 is maintained at the height H. That is, the overlapping nature of the inner links 240 and the outer links 260 may prevent the central region from collapsing. In the example shown, the central region and inner links 240 are all formed as a single monolithic component.
[0047]
[0048] Visible are the central region 220, legs 230, inner links 240, hinges 250, outer links 260, feet 270, interference arms 710, and standoffs 720. In the example shown in
[0049] In some embodiments, the legs 230 telescope rather than fold. In such embodiments, the hinges 250 may be absent, and the inner links 240 may be wider than the outer links 260, such that the outer links 260 can slide at least partially into the inner links 240, thus shortening the legs 230 such that the stand 120 has a telescoped width W2.
[0050] In the example shown in
[0051]
[0052] In the example shown in
[0053] Because the stand 120 is storable inside the stove body 110, the stove and stand system 100 advantageously takes up less storage space than if the stand 120 were permanently attached to the stove body 110, or non-foldable, or otherwise not storable within the stove body 110. This storage configuration also makes the stove and stand system 100 more easily transportable (e.g., in a backpack, duffel bag, suitcase, or picnic basket).
[0054] Depending on the implementation, the outer diameter OD of the stove body may fall in a range of between 6 inches and 16 inches, which the inner diameter ID is between 0.25 and 1.5 less than the outer diameter OD. The unfolded width W1 of the stand may be between one-eighth inch and seven-eighths inch less than the outer diameter OD of the stove body, while the folded width W2 may be between one half inch and six inches less than the inner diameter ID. However, in other examples, different dimensions, whether larger or smaller, may be used instead or in addition.
[0055] In an example, the top bezel or pot support 130, outer wall 210, bottom surface 215, top lip 440, choke pan 410, ash pan 420, and ash pan spacers are all formed from a metal such as stainless steel, and may for example be formed by stamping or rolling of sheet metal, or combinations thereof, with components or edges of components welded together as needed. In an example, the fire grate 320 is made from metal (e.g., stainless steel) bar or wire stock that is cut, bent, and welded to form the fire grate structure shown, or a different structure capable or serving the same function. In other embodiments, the fire grate 320 may also be made from stamped sheet metal such as stainless steel.
[0056] As will be readily appreciated by those having ordinary skill in the art after becoming familiar with the teachings herein, the disclosed stove and stand system advantageously provides a means to operate a solid-fuel-burning (e.g., wood-burning) stove on a non-heatproof surface, by providing a stand to offset the bottom surface of the stove from the non-heatproof surface by a safe height. The stand is also foldable, such that it can be stored inside the stove, thus providing a storage or transportation volume for the stove and stand system that is comparable to that of the stove by itself.
[0057] A number of variations are possible on the examples and embodiments described above. For example, the stove, stand, or portions thereof may be made from a variety of different materials, including but not limited to metals, ceramics, polymers, composites, or combinations thereof. Dimensions, both relative and absolute, may be different than those shown herein, without departing from the spirit of the present disclosure. The folding mechanism of the stand may be different than shown or described herein, so long as the width W1 of the unfolded configuration is sufficient to support the stove body as described, and the width W2 of the folded configuration is small enough that the stand can fit entirely inside the stove body in at least some orientations. The technology described herein may be applied to portable stoves, camp stoves, tabletop stoves, backyard firepits, or other types of stoves, and may further be applied to gas-burning or liquid-burning stoves.
[0058] Accordingly, the logical operations making up the embodiments of the technology described herein may be referred to variously as operations, steps, objects, elements, components, or modules. Furthermore, it should be understood that these may occur or be performed or arranged in any order, unless explicitly claimed otherwise or a specific order is inherently necessitated by the claim language.
[0059] All directional references e.g., upper, lower, inner, outer, upward, downward, left, right, lateral, front, back, top, bottom, above, below, vertical, horizontal, clockwise, counterclockwise, proximal, and distal are only used for identification purposes to aid the reader's understanding of the claimed subject matter, and do not create limitations, particularly as to the position, orientation, or use of the stove and stand system. Connection references, e.g., attached, coupled, connected, joined, or in communication with are to be construed broadly and may include intermediate members between a collection of elements and relative movement between elements unless otherwise indicated. As such, connection references do not necessarily imply that two elements are directly connected and in fixed relation to each other. The term or shall be interpreted to mean and/or rather than exclusive or. The word comprising does not exclude other elements or steps, and the indefinite article a or an does not exclude a plurality. Unless otherwise noted in the claims, stated values shall be interpreted as illustrative only and shall not be taken to be limiting.
[0060] The above specification, examples and data provide a complete description of the structure and use of exemplary embodiments of the stove and stand system as defined in the claims. Although various embodiments of the claimed subject matter have been described above with a certain degree of particularity, or with reference to one or more individual embodiments, those skilled in the art could make numerous alterations to the disclosed embodiments without departing from the spirit or scope of the claimed subject matter.
[0061] Still other embodiments are contemplated. It is intended that all matter contained in the above description and shown in the accompanying drawings shall be interpreted as illustrative only of particular embodiments and not limiting. Changes in detail or structure may be made without departing from the basic elements of the subject matter as defined in the following claims.