U.S. patent application number 15/859252 was filed with the patent office on 2018-05-03 for portable camping and survival stove.
The applicant listed for this patent is James Fisher, Clifford Kenneth Young. Invention is credited to James Fisher, Clifford Kenneth Young.
Application Number | 20180119960 15/859252 |
Document ID | / |
Family ID | 62021213 |
Filed Date | 2018-05-03 |
United States Patent
Application |
20180119960 |
Kind Code |
A1 |
Fisher; James ; et
al. |
May 3, 2018 |
Portable Camping and Survival Stove
Abstract
A portable camping and survival stove includes a stand
comprising a pair of flat stock lower cross-members adjoined via a
complementary slot in each member, each lower cross-member having a
lower edge and a pair of double tabs spaced apart on an upper edge
configured to secure on a shelf there between a lower edge of a
rigid container. The disclosed stove also includes a cook top
comprising a pair of flat stock upper cross-members adjoined via a
complementary slot in each member, each upper cross-member having
an upper cooking edge and a pair of double tabs spaced apart on a
lower edge configured to secure on a shelf there between an upper
edge of the rigid container. Furthermore, the rigid container may
be a discarded can or a collapsible four-sided container for
flammable material and include holes for air flow in a bottom and
at least one side thereof.
Inventors: |
Fisher; James; (Walnut
Creek, CA) ; Young; Clifford Kenneth; (Sonora,
CA) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Fisher; James
Young; Clifford Kenneth |
Walnut Creek
Sonora |
CA
CA |
US
US |
|
|
Family ID: |
62021213 |
Appl. No.: |
15/859252 |
Filed: |
December 29, 2017 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
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13872019 |
Apr 26, 2013 |
9854936 |
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15859252 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
F24B 1/202 20130101;
F24C 1/16 20130101 |
International
Class: |
F24C 1/16 20060101
F24C001/16 |
Claims
1. A portable camping and survival stove made from a container and
accessories, comprising: a universal stand accessory comprising a
pair of flat stock lower cross-members adjoined via a complementary
slot in each lower cross-member, each lower cross-member also
having a lower edge and a pair of sharp tabs spaced apart on an
upper edge configured in a plurality of descending steps from each
tab to an end of each cross-member to secure on a shelf there
between a lower edge of at least one container; and a universal
cook top accessory comprising a pair of flat stock upper
cross-members adjoined via a complementary slot in each member,
each upper cross-member having an upper cooking edge and a
plurality of arcuate tabs spaced apart on a lower edge, the arcuate
tabs configured to secure on a shelf there between an upper edge of
the container.
2. The portable camping and survival stove of claim 1, wherein the
plurality of descending steps comprise three steps from each tab to
the end thereof, a run of each stair configured to be at least 5
times longer than a rise of each stair and elevate a smaller
diameter container over a larger diameter container with respect to
the lower edge of the cross-member.
3. The portable camping and survival stove of claim 1, wherein the
slot in each member is configured at a longitudinal midpoint of
each cross-member and the slot in a first member of the lower
cross-member pairs is defined from the lower edge of the first
member and the slot in a second member of the lower cross-member
pairs is defined from the upper edge of the second member of the
cross-member pairs.
4. The portable camping and survival stove of claim 1, wherein the
slot in each member is configured at a longitudinal midpoint of
each cross-member and the slot in a first member of the upper
cross-member pairs is defined from the lower edge of the first
member and the slot in a second member of the lower cross-member
pairs is defined from the upper edge of the second member of the
upper cross-member pairs.
5. The portable camping and survival stove of claim 1, wherein the
plurality of arcuate tabs comprises three pairs of tabs spaced
apart from a longitudinal midpoint of each cross-member, a first
and a third arcuate tab pair configured to be substantially
semicircular and a second pair configured to be bullet-shaped.
6. The portable camping and survival stove of claim 1, further
comprising webbing in the cross-members, the webbing configured to
extend from a shelf of the upper edge of the lower cross-members to
the lower edge thereof and the webbing configured to extend from a
shelf of the lower edge of the upper cross-members to the upper
edge, the webbing configured to give structural integrity to the
respective cross-members at the shelves between tabs.
7. The portable camping and survival stove of claim 1, wherein each
lower cross-member comprises feet configured to offset the
cross-member from a lower edge thereof.
8. The portable camping and survival stove of claim 1, wherein a
lower cross-member with respect to the container and the upper
cross-members comprises a bullet-shaped central post extending from
the upper edge of the lower cross-member, a length of the central
post being greater than a thickness of a bottom of the
container.
9. The portable camping and survival stove of claim 1, wherein a
lower cross-member with respect to the container and the upper
cross-members comprises at least one indentation on each end of the
lower cross member, the indentation configured to indicate a
cross-member for lifting the stove.
10. The portable camping and survival stove of claim 1, wherein at
least one cross-member comprises a pointed edge configured to
puncture the container and therefore further secure it to the
cross-members.
11. The portable camping and survival stove of claim 1, wherein the
pair of tabs on each cross-member comprises fang-like pointed edges
configured to puncture the container and therefore further secure
it to the cross-members.
12. The portable camping and survival stove of claim 1, wherein a
spacing of the sharp tabs on the lower cross-members conforms to a
spacing of preformed holes in a commercially available
canister.
13. The portable camping and survival stove of claim 1, wherein the
pair of tabs comprises two each double tabs, each double tab of the
pair comprising an interstitial shelf space there between.
14. The portable camping and survival stove of claim 1, wherein
each flat stock cross-member comprises holes therein configured to
lighten a weight of the cross-members without appreciably
compromising its structural integrity.
15. The portable camping and survival stove of claim 1, further
comprising an outer shelf on the lower and upper cross-members,
each outer shelf disposed adjacent the pair of tabs, each outer
shelf configured to receive an edge of a plurality of container
sizes.
16. The portable camping and survival stove of claim 1, further
comprising a can container with holes punched in a side wall and a
bottom thereof, a top thereof substantially removed.
17. A double wall portable camping and survival stove, comprising:
a stand comprising a pair of flat stock lower cross-members
adjoined via a complementary slot in each member, each lower
cross-member having a lower edge and a pair of sharp tabs spaced
apart on an upper edge configured to secure on a shelf there
between a lower edge of a first rigid container comprising a first
diameter; a second rigid container defining a top and a bottom
opening of a second diameter larger than the first diameter, the
second rigid container disposed around the first rigid container on
the stand cross-members; and a cook top comprising a pair of flat
stock upper cross-members adjoined via a complementary slot in each
member, each upper cross-member having an upper cooking edge and a
plurality of arcuate tabs spaced apart on a lower edge, the arcuate
tabs configured to secure on a plurality of shelves there between
an upper edge of both the first and the second rigid
containers.
18. The double wall portable camping and survival stove of claim
17, wherein the upper edge of the lower cross-members is configured
in a plurality of descending steps from each tab to an end of each
cross-member to secure on a shelf there between a lower edge of the
first and the second rigid containers.
19. A method of making a double wall portable camping and survival
stove, comprising: providing a stand comprising a pair of flat
stock lower cross-members adjoined via a complementary slot in each
member, each lower cross-member having a lower edge and a pair of
sharp double tabs spaced apart on an upper edge configured in a
plurality of descending steps from each tab to an end of each
cross-member to secure on a shelf there between a lower edge of a
first rigid container of a first diameter; providing a cook top
comprising a pair of flat stock upper cross-members adjoined via a
complementary slot in each member, each upper cross-member having
an upper cooking edge and a plurality of arcuate tabs spaced apart
on a lower edge configured to secure on a shelf there between an
upper edge of the first rigid container; and dropping a second
rigid container around the first rigid container onto the stand
cross-members, the second rigid container defining a top and a
bottom opening of a second diameter larger than the first diameter;
and securing the lower container edge of both the first and the
second containers onto an interstitial shelf of the upper edge of
the lower cross-members and securing the upper container edge of
both the first and the second containers onto an interstitial shelf
of the lower edge of the upper cross-members.
20. The double wall portable camping and survival stove of claim
19, wherein the upper edge of the lower cross-members is configured
in a plurality of descending steps from each tab to an end of each
cross-member to secure on a shelf there between a lower edge of the
first and the second rigid containers.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application claims the benefit of the priority date of
earlier filed U.S. Non-Provisional application Ser. No. 13/872,019,
U.S. Pat. No. 9,854,936 titled `Portable Camping and Survival
Stove` filed Apr. 26, 2013 for Clifford Kenneth Young and U.S.
Provisional Patent Application Ser. No. 61/687,629, titled
`Portable Camping and Survival Stove` filed Apr. 26, 2012 for
Clifford Kenneth Young, each incorporated herein by reference in
its entirety.
BACKGROUND OF THE INVENTION
[0002] The disclosure is in the field of portable outdoor camping
and survival stoves. Camping and survival stoves are available in a
wide variety of different configurations. Many of these require
pre-packaged flammable fuels to operate liquid fuels like kerosene
or solid fuel. These types of stoves require their users to carry
or keep a sufficient quantity of fuel with them in order to provide
for the duration of their trip or disaster survival. This is
impractical for extended camping or backpacking trips because of
the amount of fuel that needs to be packed. It is also an
impractical solution for extended survival situations because of
the difficulty that is likely to be associated with finding the
necessary fuel.
[0003] Backpackers and people on the move during a disaster are
particularly sensitive to the weight and space requirements of
their gear. The fuel costs also add up and for extended durations
can be substantial. There are also many other camping stoves
designed to burn wood or collected scraps of wood, bark, pinecones,
etc. which, in most locations are usually a relatively abundant
resource that can be collected as needed.
[0004] In order to be lightweight and portable enough for
backpacking, some of these products may be compactable. In some
cases they may also be impractically small and flimsy. The better
products tend to be expensive however. Some incorporate
battery-dependent motors to power integrated fans to aid air flow
into the fire, which also add to the cost and complexity of the
product. Electronics also have greater potential for breakdown and
should not be depended on for a fail-safe long-term survival stove
solution.
SUMMARY OF THE INVENTION
[0005] A portable camping and survival stove as disclosed herein,
includes a stand comprising a pair of flat stock lower
cross-members adjoined via a complementary slot in each member,
each lower cross-member having a lower edge and a pair of tabs
spaced apart on an upper edge configured to secure on a shelf there
between a lower edge of a rigid container. The disclosed stove also
includes a cook top comprising a pair of flat stock upper
cross-members adjoined via a complementary slot in each member,
each upper cross-member having an upper cooking edge and a pair of
double tabs spaced apart on a lower edge configured to secure on a
shelf there between an upper edge of the rigid container.
Furthermore, the rigid container may comprise holes for air flow in
a bottom and at least one side thereof, the container configured to
contain flammable material and have a lower edge and an upper edge
thereof.
[0006] A method of making a portable camping and survival stove is
also disclosed. The method comprising providing the stand and the
cook top and securing the lower container edge onto the upper edge
of the lower cross-members and securing the upper container edge
onto the lower edge of the upper cross-members. An embodiment of
the disclosure further includes securing the lower container edge
onto the shelf between the lower cross-member double tabs and
securing the upper container edge onto the shelf between the upper
cross-member double tabs.
[0007] Other aspects and advantages of embodiments of the
disclosure will become apparent from the following detailed
description, taken in conjunction with the accompanying drawings,
illustrated by way of example of the principles of the
disclosure.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] FIG. 1 illustrates a perspective view of a can with upper
cross-members and with lower cross-members in accordance with an
embodiment of the present disclosure.
[0009] FIG. 2 depicts a perspective view of the can and
cross-members all detached from each other in accordance with an
embodiment of the present disclosure.
[0010] FIG. 3 depicts a perspective view of the assembled stove
comprising larger cross members with a pot positioned on top in
accordance with an embodiment of the present disclosure.
[0011] FIG. 4A depicts side views of the larger cross-members
including a pair of upper cross-members on the left and a pair of
lower cross-members on the right in accordance with an embodiment
of the present disclosure.
[0012] FIG. 4B depicts side views of smaller cross-members
including a pair of upper cross-members on the left and a pair of
lower cross-members on the right in accordance with an embodiment
of the present disclosure.
[0013] FIG. 5 illustrates a perspective view of the underside of an
extra-large can with the larger upper and lower cross-member pairs
assembled but detached from the can in accordance with an
embodiment of the present disclosure.
[0014] FIG. 6 illustrates a perspective view of the underside of an
extra-large can with the larger upper and lower cross-member pairs
assembled and attached to the can in accordance with an embodiment
of the present disclosure.
[0015] FIG. 7 illustrates a perspective view of the top of an
extra-large can with the larger lower cross-member pairs assembled
and attached to the can and the upper cross-members assembled but
detached from the can in accordance with an embodiment of the
present disclosure.
[0016] FIG. 8 illustrates a perspective view of the top of an
extra-large can with the larger upper and lower cross-member pairs
assembled and attached to the can in accordance with an embodiment
of the present disclosure.
[0017] FIG. 9 illustrates a perspective view of the top of a large
can with the larger cross-member pairs assembled and attached to
the can in accordance with an embodiment of the present
disclosure.
[0018] FIG. 10 illustrates a perspective view of the underside of a
large can with the larger cross-member pairs assembled and attached
to the can in accordance with an embodiment of the present
disclosure.
[0019] FIG. 11 illustrates a perspective view of the top of a
medium size can with the larger cross-member pairs assembled and
attached to the can in accordance with an embodiment of the present
disclosure.
[0020] FIG. 12 illustrates a perspective view of the underside of a
medium size can with the larger cross-member pairs assembled and
attached to the can in accordance with an embodiment of the present
disclosure.
[0021] FIG. 13 illustrates a perspective view of the top of a
medium size can with the small cross-member pairs assembled and
attached to the can in accordance with an embodiment of the present
disclosure.
[0022] FIG. 14 illustrates a perspective view of the underside of a
medium size can with the small cross-member pairs assembled and
attached to the can in accordance with an embodiment of the present
disclosure.
[0023] FIG. 15 illustrates a perspective view of the top of a large
size can with the small cross-member pairs assembled and attached
to the can in accordance with an embodiment of the present
disclosure.
[0024] FIG. 16 illustrates a perspective view of the underside of a
large size can with the small cross-member pairs assembled and
attached to the can in accordance with an embodiment of the present
disclosure.
[0025] FIG. 17 illustrates a perspective view of the top of a can
in which tent pegs, thin rods, or coat hanger wires have been
inserted through holes in the can walls in accordance with an
embodiment of the present disclosure.
[0026] FIG. 18 illustrates a perspective view of a can in which
tent pegs, thin rods, or coat hanger wires have been inserted
through holes in the can walls in accordance with an embodiment of
the present invention.
[0027] FIG. 19 illustrates a perspective view of a can in which
tent pegs or wires have been inserted through holes in the can
walls in accordance with an embodiment of the present
disclosure.
[0028] FIG. 20A illustrates a perspective view of the top of the
small cross-members attached to a collapsible flat-sided
fire-container in accordance with an embodiment of the present
disclosure.
[0029] FIG. 20B illustrates a perspective view of the underside of
the small cross-members attached to a collapsible flat-sided
fire-container in accordance with an embodiment of the present
disclosure.
[0030] FIG. 21 illustrates a perspective view of the individual
plates that make up the walls and floor of the flat-sided
fire-container laid flat in accordance with an embodiment of the
present disclosure.
[0031] FIG. 22 illustrates a perspective view of the individual
interlocking plates that make up the walls and floor of the
flat-sided fire-container in the process of being assembled in
accordance with an embodiment of the present disclosure.
[0032] FIG. 23A illustrates a perspective view of the top of the
large cross-members attached to a collapsible flat-sided
fire-container in accordance with an embodiment of the present
disclosure.
[0033] FIG. 23B illustrates a perspective view of the underside of
the large cross-members attached to a collapsible flat-sided
fire-container in accordance with an embodiment of the present
disclosure.
[0034] FIG. 24A illustrates a toaster attachment or accessory which
may be hung from the upper edge of either a can stove or the
collapsible flat-sided fire-container in accordance with an
embodiment of the present disclosure.
[0035] FIG. 24B illustrates a perspective view of the toaster
accessory disposed on the can secured to the lower cross-members in
accordance with an embodiment of the present disclosure.
[0036] FIG. 24C illustrates a perspective view of the toaster
accessory disposed on the collapsible flat-sided fire-container in
accordance with an embodiment of the present disclosure.
[0037] FIG. 25A illustrates an inverted common can for the purpose
of attaching the bottom cross-members in the process of preparing a
can for use as a wood-burning and multi-fuel stove in accordance
with an embodiment of the present disclosure.
[0038] FIG. 25B illustrates an inverted IKEA.RTM. cannister for the
purpose of attaching the bottom cross-members in the process of
preparing a can for use as a wood-burning and multi-fuel stove in
accordance with an embodiment of the present disclosure.
[0039] FIG. 26A illustrates an elevational view of a first upper
cross-member in accordance with an embodiment of the present
disclosure.
[0040] FIG. 26B illustrates an elevational view of a second upper
cross-member accordance with an embodiment of the present
disclosure.
[0041] FIG. 26C illustrates an elevational view of a first lower
cross-member in accordance with an embodiment of the present
disclosure.
[0042] FIG. 26D illustrates an elevational view of a second lower
cross-member in accordance with an embodiment of the present
disclosure.
[0043] FIG. 27A illustrates cross-members unattached to a canister
with preformed holes in accordance with an embodiment of the
present disclosure.
[0044] FIG. 27B illustrates cross-members attached to a canister
with preformed holes in accordance with an embodiment of the
present disclosure.
[0045] FIG. 28A depicts a disassembled double-walled wood-gas
(gasifier) stove, with two interlocking cans of different diameter
in accordance with an embodiment of the present disclosure.
[0046] FIG. 28B is a perspective view of an assembled double-walled
wood-gas (gasifier) stove, with two interlocking cans of different
diameter in accordance with an embodiment of the present
disclosure.
[0047] FIG. 28C is a bottom perspective view a disassembled
double-walled wood-gas (gasifier) stove, with two interlocking cans
of different diameter in accordance with an embodiment of the
present disclosure.
[0048] FIG. 29A is a depiction of a gallon paint can to be placed
down around a larger can, in order to produce a wood-gas stove in
accordance with an embodiment of the present disclosure.
[0049] FIG. 29B is a bottom perspective view of an assembled wood
gas stove, comprising a gallon paint can on the outside and a
larger can on the inside in accordance with an embodiment of the
present disclosure.
[0050] FIG. 29C is a top perspective view of an assembled wood gas
stove, comprising a gallon paint can on the outside and a larger
can on the inside in accordance with an embodiment of the present
disclosure.
[0051] FIG. 30A depicts the process of making holes in a can using
the fangs 1210 on bottom cross-member 1202 in accordance with an
embodiment of the present disclosure
[0052] FIG. 30B is a depiction of the fangs 1210 on the
cross-member 1202 in accordance with an embodiment of the present
disclosure.
[0053] FIG. 31A is a close-up depiction of how the tabs have been
designed to slot into the recess in a gallon size paint cans in
accordance with an embodiment of the present disclosure.
[0054] FIG. 31B is a close-up depiction of how the tabs have been
designed to slot into the recess in a quart size paint cans in
accordance with an embodiment of the present disclosure.
[0055] FIG. 32A depicts interdigitating Ultra-light compact
Cross-Members that provide a stable platform for a compact alcohol
stove (commercial or home-made), solid fuel (e.g. hexamine tablets)
or gel fuel (sold in canisters) in accordance with an embodiment of
the present disclosure.
[0056] FIG. 32B depicts interdigitating Ultra-light compact
Cross-Members prior to assembly for a compact alcohol stove in
accordance with an embodiment of the present disclosure.
[0057] FIG. 33 depicts assembled interdigitating Ultra-light
compact Cross-Members for a compact alcohol stove in accordance
with an embodiment of the present disclosure.
[0058] FIG. 34 depicts assembled interdigitating Ultra-light
compact Cross-Members for a larger fuel source in accordance with
an embodiment of the present disclosure.
[0059] FIG. 35 depicts assembled interdigitating Ultra-light
compact Cross-Members with a wind screen for a compact alcohol
stove in accordance with an embodiment of the present
disclosure.
[0060] FIG. 36 depicts assembled interdigitating Ultra-light
compact Cross-Members with a wind screen for a hexamine tablet
stove in accordance with an embodiment of the present
disclosure.
[0061] FIG. 37 depicts an assembled energy drink can stove in
accordance with an embodiment of the present disclosure.
[0062] FIG. 38A depicts a toaster accessory pattern in accordance
with an embodiment of the present disclosure.
[0063] FIG. 38B depicts an assembled toaster accessory in
accordance with an embodiment of the present disclosure.
[0064] FIG. 38C depicts a toaster accessory assembled with a flat
pack stove in accordance with an embodiment of the present
disclosure.
[0065] FIG. 38D is another depiction of a toaster accessory
assembled with a flat pack stove in accordance with an embodiment
of the present disclosure. in accordance with an embodiment of the
present disclosure.
[0066] Throughout the description, similar or same reference
numbers may be used to identify similar or same elements in the
several embodiments and drawings. Although specific embodiments of
the invention have been illustrated, the invention is not to be
limited to the specific forms or arrangements of parts so described
and illustrated. The scope of the invention is to be defined by the
claims appended hereto and their equivalents.
DETAILED DESCRIPTION
[0067] Reference will now be made to exemplary embodiments
illustrated in the drawings and specific language will be used
herein to describe the same. It will nevertheless be understood
that no limitation of the scope of the disclosure is thereby
intended. Alterations and further modifications of the inventive
features illustrated herein and additional applications of the
principles of the inventions as illustrated herein, which would
occur to one skilled in the relevant art and having possession of
this disclosure, are to be considered within the scope of the
invention.
[0068] The age-old "hobo stove" made from a large discarded food or
beverage can continues to be a widely used means of containing a
fire and its fuel because it easily provides a supporting structure
for cookware such as a pan or pot. These impromptu stoves can be
partially filled with scraps of wood fuel which, as mentioned, is
in most situations a fairly abundant resource that can be gathered
from one's surroundings. Such stoves therefore do not necessitate
carrying the extra weight or dependency associated with petroleum
derived fuels.
[0069] These `can stoves` are typically constructed by removing the
lid of a large can, emptying any contents and then punching or
cutting an array of vent holes in the can wall and floor to provide
adequate ventilation for the fire. The can generally needs to be
propped up by some means in order to elevate it above the ground to
allow for airflow through holes in the underside. Holes and support
tabs fabricated in this manner are inherently flimsy, and do not
provide for a stable base, or a stable pot/pan support.
[0070] A number of survival resources and online videos demonstrate
the process of making these `hobo` can stoves by cutting or
punching said vent holes in a can, as well as modifying the bottom
and top of the can to act respectively as a stand and pot/pan
support. However, the process of making all of the necessary cuts
and folds in the can metal is potentially dangerous and difficult,
and results in a stove with exposed jagged edges. Even with the
appropriate tool such as tin snips, one is at risk of slicing one's
hand open. In a backpacking or survival situation where medical
assistance may be unreachable, any attempt to create such a can is
particularly unwise.
[0071] In addition, the resulting impromptu can stove is
sub-optimal, with very flimsy and unstable legs and a weak and
narrow upper surface upon which one can place a pan or pot or
grille. Because of the narrow set of the legs and the narrow
surface for supporting the pan or pot, the stove and the pan/pot
are very prone to tipping over. This can waste valuable food and
can scald the cook. In addition, the resulting can stove with its
various jagged protrusions and leg flaps is not suitable for
transport in one's gear because it is likely to damage fabrics and
items around it or cut the user.
[0072] The disclosed portable camping and survival stove is able to
leverage the benefits of using a can (cans are inexpensive and
discarded ones can be found for free, are relatively easy to find
and provide a good strong container for holding a fire and its
fuel), while eliminating or minimizing the problems traditionally
associated with creating and using a home-made can stove.
[0073] Embodiments of the disclosed stove is composed of a durable
high-temperature-resistant material such as stainless steel or
titanium and may comprise two pairs of cross-members that can be
inter-connected just prior to each use to create both a stand to go
underneath the can as well as a pot or pan support that is inserted
into the top of the can. When not in use, the flat-sided
cross-members can be detached from each other and stacked
side-by-side and stored within the can, or in a very compact space.
Users can take a can with them or use cans that they find as they
travel. For efficient use of space during storage and transport,
the can may be filled with firewood and other items such as matches
or a magnesium fire starter.
[0074] In order to make a can suitable for use as a stove, one need
only punch an array of small ventilation holes through the sides
and floor of the can, which can be done with a tool such as an ice
pick or pocket knife. These can be punched from the outside in, so
that there are no rough or sharp spurs sticking out of the can.
Pre-punched cans optionally can be provided or sold with the stove
cross-members for added convenience. These pre-punched cans can
also have an array of longer slots punched through or cut into the
floor of the can to more readily accommodate pointed tabs on the
lower cross-members. Said tabs on the cross-members help to hold
the can securely to the cross-members. Since the upper
cross-members that fit on top of the can provide plenty of space
between the pot and the fire source for air and smoke to flow out
of the can, there is no need to cut and bend out a vent near the
top of the can. Also, since the lower cross-members provide a
strong, stable stand for the can, there is no need to cut and bend
out tabs in the floor of the can.
[0075] In an embodiment of the disclosure, the cross-members may be
provided in more than one size to accommodate a wide range of can
sizes. Two sizes of cross-members provide a good selection, with
the smaller set ideal for individuals or two or three people and
the larger set ideal for families and groups of three or more
people, according to some embodiments. These two sizes will work
with a wide variety of can sizes with some overlap in terms of the
can sizes which can be used with either of them.
[0076] The cross-members may be constructed relatively
inexpensively from sheet or plate metal by stamping out,
die-cutting, laser cutting or water cutting the cross-member
shapes. To set up the cross-members, simply orient each
cross-member at ninety degrees to its complimentary cross-member
and interconnect the slots. The can may then be pressed down onto
the assembled stand to force the upward-facing points of the
cross-members into their facing slots in the underside of the can
and to snap the lower lip of can down such that it is gripped
either on its inside or outside surfaces or both sides by the
upward-pointing tabs or protrusions of the cross-members. The tabs
and protrusions can be positioned and scaled so that they are
compatible with different sized cans, with tabs optionally gripping
the lower rim of the can either by the outside or inside perimeter
surface of the rim, depending on the diameter of the rim, according
to some embodiments. Similarly, the upper cross-members incorporate
downward-pointing tabs that grip the upper lip of the can, either
by the can's inside or outside surface. In this manner, the upper
and lower rims of the can may optionally be gripped by the
inward-facing or outward-facing edges of the tabs of the top and
bottom cross-members. Once the can has been snapped down onto the
lower cross-members, the upper cross-members can be slotted
together at right-angles to each other and then the assembled pair
snapped down onto the upper rim of the can.
[0077] The upward-facing points of the lower cross-members may be
characterized by pointed tips, according to some embodiments, so
that they can be forced through the floor of a can that has yet not
been "pre-punched" with slots cut into its floor (bottom). The
easiest way to perform this procedure is to invert the can and the
lower cross-members and to then "hammer" the lower cross-members
down onto the can floor using a solid object such as a wooden
board, branch, mallet or rock. Once the pointed tabs have been
fully pushed into the can floor such that the cross-members are now
securely gripping the can, the assembled can with stand can be
flipped back over and the upper cross-members pushed down onto the
top rim of the can.
[0078] Prior to the attachment of the upper cross-members to the
can, the can may be partially filled with fuel for the fire such as
scraps of dry wood, pinecones, wood shavings, bark, etc. The fire
can be started from below or the sides by placing a lighted match
below a hole under the can or through a hole in the side of the can
or by dropping a match into the open top of the can, or by using
other fire starters such as a magnesium striker. At any time after
the fire has taken hold, the user may place a pan, pot or grill on
top of the upper cross-members.
[0079] The user may prefer to wait for the flames to diminish to a
point where they don't rise above the level of the can rim, in
order to avoid blackening the pan or pot or burning the food. The
can acts as a container for the fire and fuel as well as a
wind-break and supporting structure for holding the upper-cross
members. The can is relatively fuel-efficient and directs most of
the heat generated upwards to the food above, and in this way a
meal can be cooked with relatively little fuel.
[0080] Holes may be arrayed through the cross-members to lessen
their weight without reducing the strength of the cross-members in
any way relevant to their function. For example, a cross-member of
approximately 2 mm thickness substantially flat stock, according to
some embodiments, made from high-temperature stainless steel or
titanium is virtually indestructible in normal use.
[0081] The term `tab` used throughout the present disclosure,
refers to a small flap or protrusion of material used to hold,
secure or manipulate a larger part to which the tab is included.
The term `locking tab` used throughout the present disclosure
therefore refers to tabs having complementary notches which are
configured to slide into or fit together and therefore secure or
interlock respective tabbed parts together. The term interstitial
as used herein refers to an interval between closely spaced tabs.
Therefore an interstitial space may refer to the shelf space
between a double tab or even the space between a pair of double
tabs.
[0082] FIG. 1 illustrates a perspective view of a can with upper
cross-members and with lower cross-members in accordance with an
embodiment of the present disclosure. The perspective view depicts
a can 300 with upper cross-members 101 and 102 assembled together
at ninety degrees to each other and attached to the can's upper rim
to form a stable, level platform 100 for pots and pans. Lower
cross-members 201 and 202 are assembled at ninety degrees to each
other and attached to the can's underside to form a stable, level
stand 200 for the can 300. An array of ventilation holes 301 made
in the side wall of the can are visible. In this embodiment a small
can 300 is shown attached to the small size cross-members. The can
walls are gripping the inner tabs of the upper cross-members and
the inside tabs of the lower cross-members and sit on the shelves
109 and 209 of the respective cross-members 101 and 102 and 201 and
202. The upper cross-members 101 and 102 therefore rest their
shelves 109 against the upper rim or edge of the can. The flat
upper surface 108 of the top cross-members 101 and 102 receives a
cooking pot or pan or other cooking appliance. The feet 208
underneath the lower cross-members 201 and 202 elevate or offset
the lower edge of the cross-members for placement of the stand on
the ground or another surface.
[0083] An space between the interstitial shelf of each double tab
pair on the lower and upper cross-members may accommodate cans from
3 and 1/8 inch (78 mm) to 4 inches (101.6 mm) and 5 and 1/16 inches
(128.60 mm) and larger. Measurements for the spaces as detailed
below include a plus or minus 10% manufacturing tolerance in order
to accommodate the aforementioned cans and various other
containers. In order to accommodate the most common can containers,
a space between the shelf or interstitial space of each double tab
on the lower and upper cross-members may measure approximately 78
mm to 128.60 mm and larger plus or minus a 10% manufacturing
tolerance. Furthermore, in order to accommodate cans or containers
of various sizes, the shelf or interstitial space itself between a
double tab may measure approximately 3.12 mm to 11 mm and larger
plus or minus a 10% manufacturing tolerance.
[0084] Measurements for the two sizes of cross-members, which in an
embodiment of the disclosure may be referred to as "compact," and
"large" may be taken as follows for an outer tab, then a slot
(shelf), then an inner tab. Measurements for the upper compact
cross-members from outside the outside tab to outside of the other
outside tab (outside diameter O/D) measures 127 mm (5 inches) and
the interstitial gap also known as the shelf or slot measures
0.3175 mm (1/8'') wide. An outside of the inner tab to the outside
of the other inner tab measures 100 mm (3 15/16 inches). NOTE: The
tabs embodied in this array, will accommodate three different sized
common cans, to wit: 4'' (101.6 mm), and 41/4'', and 5 1/16''
(128.60 mm) O/D cans. The 4'' can may have the tabs pressing
against the inside of the can; the 41/4'' can may have the tabs
pressing against the outside of the can and the 5 1/16'' can may
have the outer tabs pressing against the outside of the can. The
lower compact cross-members have tabs sharply pointed to enable
them to be hammered into the bottom of the can. Measurements for
the compact lower cross-members from outside the outside tab to
outside of the other outside tab (O/D): 124 mm (47/8'') with an
interstitial gap, slot or shelf is 5 mm ( 3/16'') wide. An outside
of the inner tab to the outside of the other inner tab may measure
98 mm (37/8'').
[0085] The large or larger upper cross-members measured from
outside the outside tab to outside of the other outside tab (O/D)
measure 154 mm (61/8'') with an interstitial gap, slot or shelf of
11 mm ( 7/16'') wide. An outside of the inner tab to the outside of
the other inner tab measures 106 mm (4 3/16''). The large or larger
lower cross-members measured from inside of the outside cross
members apart from one another measure 158 mm (6 3/16'') and the
outside of inner tabs to outside of inner tabs: 104 mm (41/8'')
[0086] FIG. 2 depicts a perspective view of the can and
cross-members all detached from each other in accordance with an
embodiment of the present disclosure. The perspective view depicts
the can 300 and cross-members 101, 102, 201 and 202 all detached
from each other. Each cross-member is oriented at 90 degrees to its
complementary cross-member so that they can be slotted together.
Each cross-member has a slot 103, 104, 203 or 204 at its center
that starts either at the cross-member's top or bottom, with its
complimentary cross-member's slot facing in the opposite direction
so that each pair of cross-members may be fitted together. A tab
105 and a tab 106 may comprise a double tab and two each double
tabs comprise a pair of double tabs. Each of the pair of double
tabs may be spaced apart or configured in order to secure two
separate edges or lip portions of a can or container. The most
stable configuration may involve spacings between each double tab
approximating the radius of the can. The two cross-members disposed
in a cross configuration of 90 degree inside angles may provide the
most stable configuration but other configurations are comprised in
embodiments of the disclosure. However, in embodiments of the
present disclosure, a pair of tabs 205 or a pair of tabs 206 may
secure the cross-members to the can container especially where each
of the tabs of a pair are pointed or sharpened and may penetrate or
cut into the bottom of a can container and thereby secure it
thereto.
[0087] FIG. 3 depicts a perspective view of the assembled stove
comprising larger cross members with a pot positioned on top in
accordance with an embodiment of the present disclosure. The
perspective depicts the stove, in which large size cross-member
pairs 500 and 600 have been assembled together with a large can 701
and with a pot 400 positioned on top of the upper cross-member pair
500. The stand 600 securely holds the large can 701 level and
broadens the base of the stove to make it more stable.
[0088] FIG. 4A depicts side views of the larger cross-members
including a pair of upper cross-members on the left and a pair of
lower cross-members on the right in accordance with an embodiment
of the present disclosure. The depiction illustrates the large
sized cross-members 501, 502, 601 and 602, according to some
embodiments. On the left is a pair of upper cross-members 500 and
on the right are the lower cross-member pair 600. The cross-members
may incorporate a multiplicity of holes 107 and 207 in order to
lighten their weight without compromising structural integrity. The
cross-member pairs also incorporate central slots 103, 104, 203 and
204, each oriented either up or down so that each cross-member can
be fitted to its complimentary paired cross-member when they are
oriented at 90 degrees to each other. The upper cross-members also
incorporate tabs 105 and 106, positioned such that they can grip
the upper lip or outer wall of cans of various sizes. The lower
cross-members also incorporate tabs 205 and 206, positioned such
that they can grip the lower lip or outer wall of cans of various
size. These lower tabs may be pointed so that they can be hammered
into the floor of a can or pushed into pre-made slots in the floor
of a can. Dimension U indicates the shelf space or interstitial
space between tabs on the lower cross members 601 and 602. The
dimension V indicates a space between the pair of double tabs which
may be the same or similar for both cross-members 601 and 602. The
dimension W depicted indicates the non-interstitial shelf space or
outer shelf space on the upper cross members 501 and 502. The
dimension X indicates the space between the pair of double tabs
which may be the same or similar for both cross-members 501 and
502.
[0089] FIG. 4B depicts side views of smaller cross-members
including a pair of upper cross-members on the left and a pair of
lower cross-members on the right in accordance with an embodiment
of the present disclosure. The depiction illustrates side views of
the smaller sized cross-members 101, 102, 201 and 202, according to
some embodiments. On the left is a pair of upper cross-members 100
and on the right are the lower cross-members 200. Just as with the
large size cross-members, the small size cross-members incorporate
central connector slots, holes and tabs. Dimension Z indicates a
space between the pair of double tabs which may be the same or
similar for both cross-members 101, 102 and 201, 202. The dimension
Y depicted indicates the non-interstitial shelf space or outer
shelf space on the upper cross members 101, 102 and 201, 202.
[0090] FIG. 5 illustrates a perspective view of the underside of an
extra-large can with the larger upper and lower cross-member pairs
assembled but detached from the can in accordance with an
embodiment of the present disclosure. The perspective view
illustrates the underside of an extra-large can 700 with the large
size upper and lower cross-member pairs 500 and 600 assembled but
detached from the can. In addition to the ventilation holes 302 in
the can floor, there are also slots 303 in the can floor to
accommodate the inner tabs 206 of the lower cross-members. Said
slots can be made by hammering the lower cross-member pair 600 onto
the floor of the can.
[0091] FIG. 6 illustrates a perspective view of the underside of an
extra-large can with the larger upper and lower cross-member pairs
assembled and attached to the can in accordance with an embodiment
of the present disclosure. The perspective view illustrates the
underside of an extra-large can 700 with the large size upper and
lower cross-member pairs 500 and 600 assembled and attached to the
can. Outer tabs 205 on the lower cross-members grip the can
sides.
[0092] FIG. 7 illustrates a perspective view of the top of an
extra-large can with the larger lower cross-member pairs assembled
and attached to the can and the upper cross-members assembled but
detached from the can in accordance with an embodiment of the
present disclosure. The perspective view illustrates the top of an
extra-large can 700 with the large size lower cross-members
assembled to form a stand 600 and attached to the can. The upper
cross-members 500 are assembled but detached from the can.
[0093] FIG. 8 illustrates a perspective view of the top of an
extra-large can with the larger upper and lower cross-member pairs
assembled and attached to the can in accordance with an embodiment
of the present disclosure. The perspective view illustrates the top
of an extra-large can 700 with the large size upper and lower
cross-member pairs 500 and 600 assembled and attached to the can.
It may be seen here that the can lip 305 grips the outside of the
outmost tabs 105 of the upper cross-members 500. The lower lip 304
of the can grips the inside of the outer tabs 205 of the bottom
cross-members. Said tabs help to hold the can in place relative to
the cross-members.
[0094] FIG. 9 illustrates a perspective view of the top of a large
can with the larger cross-member pairs assembled and attached to
the can in accordance with an embodiment of the present disclosure.
The perspective view illustrates the top of a large can 701 with
the large size cross-member pairs assembled and attached to the
can. It can be seen here that the can lip 305 grips the inside of
the outmost tabs 105 of the upper cross-members 500.
[0095] FIG. 10 illustrates a perspective view of the underside of a
large can with the larger cross-member pairs assembled and attached
to the can in accordance with an embodiment of the present
disclosure. The perspective view illustrates the underside of a
large can 701 with the large size cross-member pairs 500 and 600
assembled and attached to the can. It can be seen here that the can
wall grips the inside of the outmost tabs 105 of the upper
cross-members 500. The inner tabs of the lower cross-members 600
have been pushed into slots 303 created in the bottom of the can in
order to secure the can to the cross-members. These slots can be
created by hammering the cross-members onto the can bottom.
[0096] FIG. 11 illustrates a perspective view of the top of a
medium size can with the larger cross-member pairs assembled and
attached to the can in accordance with an embodiment of the present
disclosure. The perspective view illustrates the top of a medium
size can 702 with the large size cross-member pairs 500 and 600
assembled and attached to the can. It can be seen here that the can
rim 305 grips the outside of the inner tabs 106 of the upper
cross-members 500.
[0097] FIG. 12 illustrates a perspective view of the underside of a
medium size can with the larger cross-member pairs assembled and
attached to the can in accordance with an embodiment of the present
disclosure. The perspective view illustrates the underside of a
medium size can 702 with the large size cross-member pairs 500 and
600 assembled and attached to the can. The inner tabs of the lower
cross-members 600 have been pushed into slots 303 created in the
bottom of the can in order to secure the can to the
cross-members.
[0098] FIG. 13 illustrates a perspective view of the top of a
medium size can with the small cross-member pairs assembled and
attached to the can in accordance with an embodiment of the present
disclosure. The perspective view illustrates the top of a medium
size can with the small size cross-member pairs 100 and 200
assembled and attached to the can. The can's upper rim is gripping
the insides of the outer tabs 105 of the upper cross-members
100.
[0099] FIG. 14 illustrates a perspective view of the underside of a
medium size can with the small cross-member pairs assembled and
attached to the can in accordance with an embodiment of the present
disclosure. The perspective view illustrates the underside of a
medium size can with the small size cross-member pairs 100 and 200
assembled and attached to the can. The can wall is gripping the
inside of the outer tabs 205 of the lower cross-members 200. The
inner tabs 206 have also been pushed into slots created in the
bottom of the can.
[0100] FIG. 15 illustrates a perspective view of the top of a large
size can with the small cross-member pairs assembled and attached
to the can in accordance with an embodiment of the present
disclosure. The perspective view illustrates the top of a large
size can 701 with the small size cross-member pairs 100 and 200
assembled and attached to the can. The can lip 305 is gripping the
outside of the outer tabs 105 of the upper cross-members.
[0101] FIG. 16 illustrates a perspective view of the underside of a
large size can with the small cross-member pairs assembled and
attached to the can in accordance with an embodiment of the present
disclosure. The perspective view illustrates the underside of a
large size can 701 with the small size cross-member pairs 100 and
200 assembled and attached to the can. The lower can rim can be
seen gripping the outside of the outer tabs 205 of the lower
cross-members. The inner and outer cross-members, 205 and 206
respectively, have been pushed into slots created in the bottom of
the can.
[0102] FIG. 17 illustrates a perspective view of the top of a can
in which tent pegs, thin rods, or coat hanger wires have been
inserted through holes in the can walls in accordance with an
embodiment of the present disclosure. The perspective view
illustrates the top of a large can 701 in which tent pegs, thin
rods or coat hanger wires 800 have been inserted through holes in
the can walls. A metal tray 801 holding a block of solid fuel 802
such as an Esbit.TM. cube has been placed on the tent pegs 800.
This arrangement allows the stove to be used with alternative fuel
sources. The upper cross-members 100 are seen detached from the can
to allow the fuel to be placed inside the can. The upper
cross-members 100 can be pushed back down onto the can rim prior to
use of the stove. FIG. 17 illustrates a perspective view of the top
of a can in which tent pegs, thin rods, or coat hanger wires have
been inserted through holes in the can walls in order to provide
elevated support for a liquid, gas or solid source, which may be
used inside the stove as an alternative to wood fuel, in accordance
with an embodiment of the present disclosure.
[0103] FIG. 18 illustrates a perspective view of a can in which
tent pegs, thin rods, or coat hanger wires have been inserted
through holes in the can walls in accordance with an embodiment of
the present invention. The perspective view illustrates a large can
701 in which tent pegs, thin rods or coat hanger wires 800 have
been inserted through holes in the can walls. A compact liquid fuel
source such as a Trangia.TM. burner or a home-made "soda can stove"
803 depicted here above the can may be placed on the tent pegs
inside the can. The upper cross-members 100 depicted above can be
pushed back down onto the can rim after the fuel source 803 has
been placed in the can. FIG. 18 illustrates a perspective view of
the top of a can in which tent pegs, thin rods, or coat hanger
wires have been inserted through holes in the can walls in order to
provide elevated support for a liquid, gas or solid source, which
may be used inside the stove as an alternative to wood fuel, in
accordance with an embodiment of the present disclosure.
[0104] FIG. 19 illustrates a perspective view of a can in which
tent pegs or wires have been inserted through holes in the can
walls in accordance with an embodiment of the present disclosure.
The perspective view illustrates a large can 701 in which tent pegs
800 or wires have been inserted through holes in the can walls. A
compact liquid fuel source such as an Trangia.TM. burner or a
home-made "soda can stove" 803 depicted inside the can resting on
the tent pegs 800. The upper cross-members 100 have been pushed
back down onto the can rim and the stove is now ready for use. The
fuel source can be ignited by dropping a match into it from above.
FIG. 19 illustrates a perspective view of the top of a can in which
tent pegs, thin rods, or coat hanger wires have been inserted
through holes in the can walls in order to provide elevated support
for a liquid, gas or solid source, which may be used inside the
stove as an alternative to wood fuel, in accordance with an
embodiment of the present disclosure.
[0105] FIG. 20A illustrates a perspective view of the top of the
small cross-members attached to a collapsible flat-sided
fire-container in accordance with an embodiment of the present
disclosure. The perspective view illustrates the top of the upper
and lower small cross-members 100 and 200 attached to a collapsible
flat-sided fire-container 900. The walls and floor of said flat
sided fire-container 900 interlock with each other and with the
cross-members to provide a secure fire container and stable
platform for cooking. The interlocking walls are tapered from a
larger top edge to a smaller bottom edge and form a larger
perimeter at the top edge thereof and a smaller perimeter at the
bottom edge thereof, the floor plate disposed adjacent the bottom
edge perimeter. The interlocking walls therefore may form a
trapezoidal geometry configured to increase a surface area for air
to enter and exit from holes the container walls and therefore
encourage combustion of the flammable material therein. A larger
end of the trapezoid may be disposed adjacent the lower members for
a lower center of gravity and a more stable configuration but the
larger end may also be disposed adjacent the upper members.
[0106] FIG. 20B illustrates a perspective view of the underside of
the small cross-members attached to a collapsible flat-sided
fire-container in accordance with an embodiment of the present
disclosure. The perspective view illustrates the underside of the
upper and lower small cross-members 100 and 200 attached to a
collapsible flat-sided fire-container 900. The walls and floor of
said flat sided fire-container 900 interlock with each other and
with the cross-members to provide a secure fire container and
stable platform for cooking.
[0107] FIG. 21 illustrates a perspective view of the individual
plates that make up the walls and floor of the flat-sided
fire-container laid flat in accordance with an embodiment of the
present disclosure. The individual plates that make up the walls
and floor of the flat-sided fire-container 900 are illustrated
flat. Two opposing walls 901 have downward-pointing locking tabs
908 that lock into the upward pointing tabs 907 of the other two
opposing walls 902. Notches 904 in the top edges of the walls 901
and 902 interlock with the upper cross-members (cross-members not
depicted in this figure) and notches 905 in the bottom edges of the
walls interlock with the lower cross-members. When not in use these
wall and floor plates 901 and 902 can be stacked together and
stored in a compact pouch, bag or container. Notches 906 in the
floor plate 903 interlock with the lower cross-members.
[0108] FIG. 22 illustrates a perspective view of the individual
interlocking plates that make up the walls and floor of the
flat-sided fire-container in the process of being assembled in
accordance with an embodiment of the present disclosure. The
perspective view illustrates the individual interlocking plates
that make up the walls 901 and 902 and floor 903 of the flat-sided
fire-container 900 in the process of being assembled together.
[0109] FIG. 23A illustrates a perspective view of the top of the
large cross-members attached to a collapsible flat-sided
fire-container in accordance with an embodiment of the present
disclosure. The perspective view illustrates the top of the large
cross-members 500 and 600 attached to a collapsible flat-sided
fire-container 900.
[0110] FIG. 23B illustrates a perspective view of the underside of
the large cross-members attached to a collapsible flat-sided
fire-container in accordance with an embodiment of the present
disclosure. The perspective view illustrates the underside of the
large cross-members 500 and 600 attached to a collapsible
flat-sided fire-container 900.
[0111] FIG. 24A illustrates a perspective view of a toaster
attachment or accessory which may be hung from the upper edge of
either a can stove or the collapsible flat-sided fire-container in
accordance with an embodiment of the present disclosure. The
perspective view illustrates a toaster attachment or accessory 1000
which can be hung by hooks 1001 or other means from the upper edge
of either a can stove 300 or the collapsible flat-sided
fire-container 900. When installed and in use on the side of either
stove configuration, each said toaster attachment 1000 is able to
hold a slice of bread 1002 in proximity to the hot sides of the
stove. In each figure only two toaster attachments 1000 are
depicted but, up to four of these toaster attachments can be hung
from either stove, one on each side.
[0112] FIG. 24B illustrates a perspective view of the toaster
accessory disposed on the can secured to the lower cross-members in
accordance with an embodiment of the present disclosure. The
toasters as depicted may be comprised of bonded wires bent into
shape, but could optionally be made from sheets of metal bent into
a similar shape such that they are capable of holding a slice of
bread adjacent to the stove and allowing the conduction of heat
from the stove walls to the bread slice.
[0113] FIG. 24C illustrates a perspective view of the toaster
accessory disposed on the collapsible flat-sided fire-container in
accordance with an embodiment of the present disclosure. Reference
numbers similar to or the same as reference numbers in other
drawings may identify similar or same elements described
immediately herein and in other supporting descriptions.
[0114] A method of making a portable camping and survival stove is
also disclosed. The method comprising providing the stand and the
cook top and securing the lower container edge onto the upper edge
of the lower cross-members and securing the upper container edge
onto the lower edge of the upper cross-members. An embodiment of
the disclosure further includes securing the lower container edge
onto the shelf between the lower cross-member double tabs and
securing the upper container edge onto the shelf between the upper
cross-member double tabs.
[0115] In a further embodiment of the disclosure, compact and large
cross-members are combined into one universal size that fits a full
range of cans that the former cross-members fit. Also, the
cross-members are designed to also fit popular IKEA.RTM. canisters.
In other words, a spacing of the sharp tabs on the lower
cross-members conforms to a spacing of preformed holes in a
commercially available canister. For perfect alignment and easy
attachment, "fangs" underneath line up with holes in the bottom of
the canister and a central "bullet" shaped post centers the
cross-members on the center hole of the canister.
[0116] Embodiments may include a tool for perforating cans
precluding the use of an ice pick, or a pocket knife. The
perforating tool has taken the form of a sharpened spike on the end
of one of the lower cross-members. Also, an embodiment includes two
"fangs" on one of the lower cross-members modified with pointier
tips in order to provide the same function. This is a safe design
because no spike is configured to point up next to the can. Other
perforation tool configurations on the cross-members are included
in the present disclosure. An embodied method includes using a
branch or rock to tap the perforation tool into the can and then
turn it to widen the hole. The disclosed cross-member embodiments
are configured to fit an extended range of cans to include quart
and gallon paint cans. The gallon can configuration includes
notches in the inside of the upper lip.
[0117] A double-wall gasifier wood stove embodiment is also
disclosed herein. The respective cross-members are designed to hold
two concentric cans of differing sizes in position with even
spacing all around between the two walls. There are at least three
different can combinations that have successfully tested. The
disclosed configurations have advantages even over other dedicated
gasifier stoves. One advantage is the ability to start a fire up
much faster and more easily by beginning with the standard
single-can configuration because it is much better ventilated than
a conventional gasifier stove. The second can may be dropped around
the first can once the fire is burning hot. Other gasifiers may be
slow to start because the double-wall setup is much less
ventilated. In addition, because the lower cross-members elevate
the cans, the disclosure gets better ventilation from below. Other
gasifiers have canisters that go down to the ground and therefore
have an array of large holes around the lower edge, as well as an
elevated chamber underneath the inside can which adds undesirable
weight.
[0118] In an embodiment of the disclosure, indentations are
included in each end of the lowest cross-member on the bottom. This
is a visual and tactile (in the dark) cue to let the user know this
is the cross-member to pick up if he wants to lift the stove to
move it. If the other undented cross-member is picked up, the
bottom cross-member will drop off. Therefore, the notches are not
in the cross-member with the bullet shaped central prong.
[0119] The disclosed embodiments include a proprietary and unique
hole shape design that is both attractive and functional. Another
embodiment may include a sheath configured to protect the owner's
gear from the sharp points on the cross-members and from soot and
to keep the cross members together. The sheath may also double as
packaging for the disclosed product in shipping or in retail. The
sheath may have holes through it that correspond to one or more
holes in the cross-members, so that one or more zip ties can be
threaded through both to prevent retail theft by preventing
cross-members being removed from the sheath. The holes in the
sheath may also accommodate a loop of some sort for hanging the
product from a display rod and for also attaching any printed
material either as backing or as a dangling card or leaflet of some
sort.
[0120] A portable camping and survival stove made from a container
and accessories as disclosed includes a universal stand accessory
comprising a pair of flat stock lower cross-members adjoined via a
complementary slot in each lower cross-member, each lower
cross-member also having a lower edge and a pair of sharp tabs
spaced apart on an upper edge configured in a plurality of
descending steps from each tab to an end of each cross-member to
secure on a shelf there between a lower edge of at least one
container. The disclosure also includes a universal cook top
accessory comprising a pair of flat stock upper cross-members
adjoined via a complementary slot in each member, each upper
cross-member having an upper cooking edge and a plurality of
arcuate tabs spaced apart on a lower edge, the arcuate tabs
configured to secure on a shelf there between an upper edge of the
container.
[0121] An embodiment of the portable camping and survival stove
comprises three steps from each tab to the end thereof, a run of
each stair configured to be at least 5 times longer than a rise of
each stair and elevate a smaller diameter container over a larger
diameter container with respect to the lower edge of the
cross-member. Also, the slot in each member is configured at a
longitudinal midpoint of each cross-member and the slot in a first
member of the lower cross-member pairs is defined from the lower
edge of the first member and the slot in a second member of the
lower cross-member pairs is defined from the upper edge of the
second member of the cross-member pairs.
[0122] In another embodiment of the portable camping and survival
stove, the plurality of arcuate tabs comprises three pairs of tabs
spaced apart from a longitudinal midpoint of each cross-member, a
first and a third arcuate tab pair configured to be substantially
semicircular and a second pair configured to be bullet-shaped. The
disclosure further comprises webbing in the cross-members, the
webbing configured to extend from a shelf of the upper edge of the
lower cross-members to the lower edge thereof and the webbing
configured to extend from a shelf of the lower edge of the upper
cross-members to the upper edge, the webbing configured to give
structural integrity to the respective cross-members at the shelves
between tabs.
[0123] A lower cross-member with respect to the container and the
upper cross-members in an embodiment comprises a bullet-shaped
central post. The central post extends from the upper edge of the
lower cross-member. A length of the central post is greater than a
thickness of a bottom of the container in order that the central
post may penetrate the container sufficient to secure it thereto. A
lower cross-member may also comprise at least one indentation on
each end of the lower cross member, the indentation configured to
indicate a cross-member for lifting the stove.
[0124] In yet another embodiment of the disclosure, a cross-member
comprises at least one pointed edge configured to puncture the
container and therefore provide points of entry for the tabs of the
cross-members. Also, the pair of tabs on each cross-member may
comprise fang-like pointed edges configured to puncture the
container and therefore further secure it to the cross-members in
one step where appropriate. The fan-like pointed edges may also be
inserted into preexisting holes in the container. A hook shape of
the fang-like pointed edges may provide some catching and securing
ability to the container canister for the cross-members.
[0125] A double wall portable camping and survival stove is also
disclosed. The double wall configuration comprises a stand. The
stand comprises a pair of flat stock lower cross-members adjoined
via a complementary slot in each member. Each lower cross-member
has a lower edge and a pair of sharp tabs spaced apart on an upper
edge configured to secure on a shelf there between a lower edge of
a first rigid container comprising a first diameter. A second rigid
container defines a top and a bottom opening of a second diameter
larger than the first diameter, the second rigid container disposed
around the first rigid container on the stand cross-members. A cook
top comprises a pair of flat stock upper cross-members adjoined via
a complementary slot in each member, each upper cross-member having
an upper cooking edge and a plurality of arcuate tabs spaced apart
on a lower edge. The arcuate tabs are configured to secure on a
plurality of shelves there between an upper edge of both the first
and the second rigid containers. An upper edge of the lower
cross-members of an embodiment of the double wall portable camping
and survival stove comprises descending steps. The steps are
configured from each tab to an end of each cross-member to secure
on a shelf there between a lower edge of the first and the second
rigid containers.
[0126] A method of making a double wall portable camping and
survival stove comprises 1210 providing a stand including a pair of
flat stock lower cross-members adjoined via a complementary slot in
each member. Each lower cross-member has a lower edge and a pair of
sharp double tabs spaced apart on an upper edge configured in a
plurality of descending steps from each tab to an end of each
cross-member to secure on a shelf there between a lower edge of a
first rigid container of a first diameter. The method also
comprises 1220 providing a cook top including a pair of flat stock
upper cross-members adjoined via a complementary slot in each
member. Each upper cross-member has an upper cooking edge and a
plurality of arcuate tabs spaced apart on a lower edge configured
to secure on a shelf there between an upper edge of the first rigid
container. The method additionally comprises 1230 dropping a second
rigid container around the first rigid container onto the stand
cross-members. The second rigid container defines a top and a
bottom opening of a second diameter larger than the first diameter.
The method further comprises 1240 securing the lower container edge
of both the first and the second containers onto an interstitial
shelf of the upper edge of the lower cross-members. The method yet
includes 1250 securing the upper container edge of both the first
and the second containers onto an interstitial shelf of the lower
edge of the upper cross-members.
[0127] FIGS. 25A-B illustrate inverted cans for the purpose of
attaching the bottom cross-members in the process of preparing a
can for use as a wood-burning and multi-fuel stove in accordance
with an embodiment of the disclosure. Included are reference
numbers 1100 Hand (shown attaching lower Cross-Members to base of a
common can 300 or IKEA canister 350), reference number 1102 Rock or
other makeshift tool such as a stick (or a hammer), used to tap the
interlocked bottom cross-members into the base of the can (the
first time--after that they can simply be pressed in when used in
future camping trips), reference number 1200 Interlocked lower
Cross-Members (latest design), reference number 1210 fangs which
are designed to penetrate the base of the can, and also to line up
with the corner holes 352 underneath an IKEA canister (we chose the
corner holes but they could be designed to line up with any of the
other holes underneath), reference number 350 Pre-punched stainless
Steel IKEA canister (designed for cutlery draining, but very
popular for turning into a biofuel stove) and reference number 352
Corner holes underneath can that line up with the fangs 1210 on the
bottom cross-members 1200.
[0128] FIGS. 26A-D illustrate the latest UNIVERSAL cross-member
design according to an embodiment of the present disclosure. The
universal size fits all the cans that the earlier compact and large
sizes fit, plus they fit additional cans, as well as the addition
of the most common small food can, pre-punched stainless steel
canisters from IKEA corporation, quart paint cans and gallon paint
cans. Illustrated features are referenced per numbers 103 and 104,
as well as 203 and 204 center slots for interlocking the
cross-members. These now have filleted openings, so that they can
be interlocked more easily, 107: Holes are expanded and reshaped so
that they are larger, resulting in lighter-weight cross-members.
The holes can take any form, 1210: Fangs for penetrating the base
of a can. In the case of the IKEA canister, because the stainless
steel canister is much thicker than common food cans, we designed
these to line up with the holes underneath the IKEA canister
(otherwise, attempting to puncture the canister would buckle the
canister, and blunt the fang tips. When tapped into the IKEA holes,
the edges of the fangs cut into the edges of the holes, producing
small notches in the hole edges, and helping the can lock onto the
cross-members. New feature: These fangs have been specifically
shaped and sized (plus we sharpen the tips), so that they can
double as a tool for making air holes in the base and sides of a
can during first-time can preparation (depicted in a later figure),
1212: Fangs for penetrating the base of a can. These fangs can have
the same shape as fangs 1210, but because the bullet 1214 would get
in the way on this cross-member 1201, these we do not sharpen the
fangs 1212 for use as a hole-making tool, 1214: Center "bullet"
shape which penetrates the center of the can base. For the IKEA
canister, this lines up with the center hole. This helps the user
center the cross-members under the can when first attaching them,
and also helps to secure the can to the cross-members, 1216: Short,
mostly vertical edges on the inside of the fangs. Because the
diameter of the most common food can is too small for the fangs to
penetrate it, instead, the can pressed down between the fangs and
locks in against these edges, 1220: Indentation in the outside
edges of the lowest bottom cross-member. This serves as a visual
and tactile cue to the user so that the user knows which
cross-member to grip to move the stove, 1310 Inside edge of
innermost tab, which fits the outside of the most common small food
can, 1312 Narrowed protrusion on innermost tab, sized to fit into
the indentation in the lip of a quart size paint can (this tab is
stepped, rather than notched all the way up, so that a single tab
can fit multiple cans (otherwise the resulting tabs would be
relatively narrow and weak), 1314 Outside edge of innermost tab,
sized to fit a common size can, 1316 Inside edge of second tab from
the inside, sized to fit a common size can, 1318 Outside edge of
innermost tab, sized to fit against the inside of the popular IKEA
canister, 1320 Inside edge of third tab from the inside, sized to
fit a common size can, 1322 Notch or indentation designed to
accommodate the raised lip on the inside of a gallon paint can,
1314 Outside edge of innermost tab, sized to fit a common extra
large size can, such as the outside of a #10 can or the lip inside
a gallon paint can.
[0129] FIGS. 27A-B are depictions of cross-members being attached
to a pre-punched IKEA canister in accordance with an embodiment of
the present disclosure. The depictions include 350 Pre-punched
stainless steel IKEA canister, Fangs 1210 line up with corner holes
352, Center "bullet" 1214 lines up with center hole 354, 1200
Interlocked bottom cross-members and 1300 Interlocked top
cross-members.
[0130] FIGS. 28A-B: depictions of disassembled and assembled
double-walled wood-gas (gasifier) stove, with two interlocking cans
of different diameter in accordance with an embodiment of the
present disclosure. The depictions include 1400 outer can, 1410
inner can, 1402 Surface or lip inside the top of the outer can that
acts as a barrier to prevent air between the two cans from flowing
up and out. Instead, the air is heated between the walls of the two
cans and flows through holes near the top of the inner can into the
combustion chamber inside the inner can. A hole 1102 can be cut in
the top of the outer can (or bottom if the outer can is inverted)
which approximately matches the outside diameter of the inner can.
The configuration of two interlocking cans to make a wood-gas stove
uses cross-members underneath and on top represents a big
improvement over other means of creating pot supports and stove
supports. Most such gasifier stoves also sit directly on the
ground, requiring the addition of air holes in the outside of the
outer can for air to be able to flow in. They also require an
internal chamber to lift the fire away from the ground below. In
contrast, by elevating the stove off the ground with the
cross-members, air can flow up from underneath the cans, so no
holes in the wall of the outer can are required. The fire is also
separated further from the surface below. Depending on the selected
can sizes, the fangs 1210 can either penetrate the inner can or
line up between the two cans, as depicted here, and 1404 notches
may need to be cut in the upper lip of the outer can, to
accommodate the tabs on the top cross-members, as depicted
here.
[0131] The second can with the top cross-members attached to it may
be dropped around the first can once the fire is burning hot (one
doesn't want to be attaching cross-members to a hot stove with fire
licking up, so it is best to first attach them to the outer can
before dropping it around the inner can).
[0132] Pg. 22:
[0133] An embodiment of the portable camping and survival stove
comprises three (a plurality of?) steps from each tab to the end
thereof, a run of each stair 15 configured to be at least 5 times
longer than a rise of each stair and elevate a smaller diameter
container over a larger diameter container with respect to the
lower edge of the cross-member. The steps aren't absolutely
necessary, but help to compensate for the higher floor in wider
cans, so that the fangs and bullet penetrate all the way.
[0134] In another embodiment of the portable camping and survival
stove, the plurality of arcuate tabs comprises three pairs of tabs
spaced apart. There are now 4 tabs (mirrored from one side to the
other) on each cross-member. This is because I cut a notch into the
outermost tab so that it will fit into the lip of a gallon paint
can. The current design is compatible with a wide range of can
sizes but there could conceivably be more than 4 tabs in an
alternative embodiment (no plans to do this as we haven't run into
other cans that are common enough to want it to fit to).
[0135] The holes, aka webbing reduce overall weight and can take
any variety of different forms or patterns. Regarding a third
arcuate tab pair configured to be substantially semicircular, there
maybe 4 tabs, and the 4th tab is approximately "stepped" (it
narrows to form a narrower tab protrusion at its lower extents), so
that at its lower extents the tab will fit against can rims that
are of different but close diameters to other cans that the upper
extents of the stepped tab fits against. For example, the narrowed
lower extent will fit into the annular trough in a quart paint can
lip, while the wider upper extents fit against the most common
small food can on its inside edge, and a wider coffee or bean can
on its outside edge.
[0136] Note: the tabs now have tips that are more eliptical than
semicircular. These can be described as tabs with tapered or
semicircular or semi-eliptical ends, so that they will easily slide
down against the inside or outside edge of a can lip without
jamming against it. Regarding a second rigid container defining a
top and a bottom opening of a second diameter larger than the first
diameter, the second rigid container disposed, there are loads of
two-can stoves that people make, so it is important that we do not
claim that, but rather the ability of the cross-members to handle a
two can (or even 3-can) configuration.
[0137] FIG. 29A is a depiction of a gallon paint can about to be
placed down around a #10 can, in order to produce a wood-gas stove
in accordance with an embodiment of the present disclosure. The top
cross-members conveniently slot into the recess in the upper lip of
the paint can. The depiction includes 700: #10 can (inner can) and
710: Gallon paint can (outer can).
[0138] FIG. 29B-C depict an assembled wood gas stove, comprising a
gallon paint can on the outside and a #10 can on the inside in
accordance with an embodiment of the present disclosure. Note how
the base of the outer can has been removed using a can opener, so
that it is open underneath and can be placed around the #10 can.
Other can combinations using smaller cans may be used.
[0139] FIG. 30 depicts the process of making holes in a can using
the fangs 1210 on bottom cross-member 1202 in accordance with an
embodiment of the present disclosure. A stick or rock or other tool
such as a hammer may be used to repeatedly tap one of the fangs on
the lower cross-member 1202 (the one without the bullet) into the
base and sides of the can. This can be followed by a brief twist to
widen the hole and make it easy to release the fang from the
can.
[0140] FIG. 30B is a depiction of the fangs 1210 on the
cross-member 1202 in accordance with an embodiment of the present
disclosure.
[0141] FIG. 31A is a close-up depiction of how the tabs have been
designed to slot into the recess in the gallon and quart size paint
cans in accordance with an embodiment of the present disclosure.
Similar configurations can be employed to fit other size paint
cans, such as a metric version of the cross-members for European
markets that works with cans sized in liters, etc. The depiction
includes 710 Gallon paint can, 720 Quart paint can and 1310
Interlocked top cross-members. Note: If the process of preparing
the can (hole making, tapping bottom cross-members into the base of
the can) can be claimed, that may be worth doing.
[0142] FIGS. 32A-37 depict interdigitating Ultra-light compact
Cross-Members that provide a stable platform for a compact alcohol
stove (commercial or home-made), solid fuel (e.g. hexamine tablets)
or gel fuel (sold in canisters) in accordance with an embodiment of
the present disclosure. The depiction includes 1600 Assembled pair
of alternative fuel mini cross-members, 1610 Upper Cross-Member,
1612 slot in upper cross-member for interlocking with the lower
cross-member, 1614 level edge for supporting the fuel source (this
surface could be stepped to fit different diameter alcohol
stoves--the steps would go at successively higher from the inside
to the outside), 1616 Level edge on top for supporting a pot, pan,
mug, flask, grill or other receptacle or item to be heated/cooked,
1618 tabs or hooks or other structures for securing a wind shield
around the stove, 1620 Lower Cross-Member, 1622 slot in lower
cross-member for interlocking with the upper cross-member, 1650
Compact alcohol stove, such as a home-made version commonly made
from a soda can or beer can, 1652 Commercial alcohol stove, such as
the popular Trangia depicted here, 1654 Solid fuel, such as a
hexamine tablet, 1656 Tray to hold the solid fuel. This could be a
makeshift disposable material such as aluminum foil. Reference
number 1660 is a Wind shield wrapped around the cross-members and
engaged by the tabs to help hold it in position. This wind shield
could be manufactured, or can be a simple aluminum foil which would
typically be folded to be double-thick and then wrapped around the
stove. After use, the foil can be folded flat and stored flat with
the cross-members. A metallic wind shield would also help reflect
heat back toward the center for improved efficiency.
[0143] FIG. 37 depicts 1658 another common design for a compact
alcohol stove, using a small energy drink can in accordance with an
embodiment of the present disclosure.
[0144] Note conventional cross-members sit on top of a small
alcohol stove to provide a pot support, but none of them go
underneath as the disclosed members. These have the advantage of
supporting a pot on top as well as providing a wide support
underneath for the alcohol or other stove/fuel source. In addition,
they are a universal size--since they don't fit on top of a
specific stove, they will work with a wide variety of different
compact stoves/fuel sources.
[0145] Not depicted in the figures are cross-members may have hooks
or tabs for suspending items, between them (inside) or outside. For
example, an alcohol stove could be suspended at a desired height by
supporting it on wires or a wire mesh that is suspended from the
hooks.
[0146] FIG. 38A-38D depict a toaster accessory assembly in
accordance with an embodiment of the present disclosure. The
depiction includes 1500 combined flat-pack toaster, composed of two
separable parts, which can be cut in a compact pattern that
economizes the use of material and laser costs, 1510 Base plate,
1520 Back plate, 1512 Slits in the base plate for the back plate to
interlock, 1514 Prongs for sliding the leading edge of the base
plate under a stove or into slits created in the side wall of said
stove, 1516 slot between the prongs for accommodating one of the
bottom cross-members, wherein the slot can slide up against the
edge of a step or shelf in the bottom cross-member, 1522 tabs on
the back plate that slot into the corresponding slits in the base
plate, 1524 holes and cutouts to reduce weight and economize on
material, 1530 Assembled toaster unit (back plate slotted into the
base plate), 900 Collapsible stove and a 350 IKEA.RTM. cannister
(can be any can stove or other type of portable camping stove).
[0147] Although the operations of the method(s) herein are shown
and described in a particular order, the order of the operations of
each method may be altered so that certain operations may be
performed in an inverse order or so that certain operations may be
performed, at least in part, concurrently with other operations. In
embodiments, instructions or sub-operations of distinct operations
may be implemented in an intermittent and/or alternating manner.
Notwithstanding specific embodiments of the invention have been
described and illustrated, the invention is not to be limited to
the specific forms or arrangements of parts so described and
illustrated. The scope of the invention is defined by the claims
and their equivalents herein.
* * * * *