The present invention relates to fire-starters, and more particularly, this invention relates to manual spark generating fire-starters.
Many different conventional fire-starters exist in the marketplace today. For instance, lighters, matches, chemical reactions, spark rods, and other types of mechanisms have been used to generate sparks and/or flames that can be used to ignite a fuel source such as tinder. While fire-starters that produce small flames are easier to ignite a fuel source, they have conventionally required a fast-burning fuel source to be consumed. For example, lighters are able to produce a small flame by igniting and burning a liquid fuel source, e.g., such as butane or naphthalene. As a result, these conventional fire-starters require to be refilled frequently and have a higher upkeep cost.
Conversely, conventional fire-starters that produce sparks typically utilize a fuel source that is consumed more slowly. While this prolongs the useable lifetime of a fire-starter, these conventional fire-starters are significantly difficult to use. More specifically, conventional fire-starters are inefficient in producing sparks as well as delivering them securely to a fuel source (e.g., tinder). These conventional fire-starters produce sparks that scatter in all directions, and which are exposed to whatever ambient environment the user is located in.
It follows that conventional fire-starters have suffered from several inefficiencies that have limited use and applicability over time. These conventional fire-starters tend to increase user interaction, ultimately decreasing their effectiveness and ease of operation. Therefore, it would be beneficial to have a fire-starter product which possesses a more efficient design and/or functional properties that help facilitate fire generation.
A fire-starter, according to one approach, includes: an outer shell having an upper end, as well as sidewalls coupled to the upper end. Together, the sidewalls and upper end form an interior portion of the outer shell. The fire-starter also includes a first opening in the outer shell, the first opening being configured to receive a spark rod and provide access to the interior portion of the outer shell. Furthermore, a blade is positioned in the interior portion of the outer shell and adjacent to the first opening. Accordingly, the blade is configured to come into contact with a spark rod that is inserted in the first opening. The blade is also configured to generate sparks in the interior portion of the outer shell in response to the spark rod being removed from the first opening while in contact with the blade.
Other aspects and advantages of the present invention will become apparent from the following detailed description, which, when taken in conjunction with the drawings, illustrate by way of example the principles of the invention.
For a fuller understanding of the nature and advantages of the present invention, as well as the preferred mode of use, reference should be made to the following detailed description read in conjunction with the accompanying drawings.
The following description is made for the purpose of illustrating the general principles of the present invention and is not meant to limit the inventive concepts claimed herein. Further, particular features described herein can be used in combination with other described features in each of the various possible combinations and permutations.
Unless otherwise specifically defined herein, all terms are to be given their broadest possible interpretation including meanings implied from the specification as well as meanings understood by those skilled in the art and/or as defined in dictionaries, treatises, etc.
It must also be noted that, as used in the specification and the appended claims, the singular forms “a,” “an” and “the” include plural referents unless otherwise specified.
The following description discloses several preferred approaches of a fire-starter and/or related systems and methods.
In one general approach, a fire-starter includes: an outer shell having an upper end, as well as sidewalls coupled to the upper end. Together, the sidewalls and upper end form an interior portion of the outer shell. The fire-starter also includes a first opening in the outer shell, the first opening being configured to receive a spark rod and provide access to the interior portion of the outer shell. Furthermore, a blade is positioned in the interior portion of the outer shell and adjacent to the first opening. Accordingly, the blade is configured to come into contact with a spark rod that is inserted in the first opening. The blade is also configured to generate sparks in the interior portion of the outer shell in response to the spark rod being removed from the first opening while in contact with the blade.
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This interior portion 107 is particularly apparent in situations where the lower end 105 of the outer shell 102 is placed against a surface, e.g., like the ground. This effectively covers the bottom open end of the outer shell 102. It should be noted that with respect to the present description, the “open end” of the outer shell 102 refers to the bottom end on an opposite side of the sidewalls 106 as the upper end 104. In other words, the bottom of the outer shell 102 is open.
In preferred approaches, the outer shell 102 is formed in a single process such that the upper end 104 and sidewalls 106 are effectively portions of a uniform piece of material. However, in other approaches the upper end 104 may be coupled to the sidewalls 106 using one or more fasteners, adhesives, interlocking features, etc., to for the outer shell 102. An illustrative and non-limiting list of materials that may be used to form the outer shell 102 and/or any of the components therein, includes one or more plastics, metals, rubbers, etc., and/or combinations thereof.
An outer (e.g., exterior) surface of the outer shell 102 may be textured and/or patterned in some approaches. For instance, the outer surface of the outer shell 102 may have finger groves (e.g., see groves 111 in
For example, a rubberized material may be affixed to the outer surface of the outer shell 102 to improve the tactile response for a user. It follows that depending on the desired implementation, different designs and features may be implemented along the exterior (e.g., outer surface) of the outer shell 102. According to another example, a color pattern configured to reflect more thermal energy received from exposure to sunlight may be implemented in conjunction with specific texturing and/or dimensions to help facilitate heat transfer away from the interior of the fire-starter 100 to keep any kindling, accelerants, etc., that may be stored therein cool to prevent unintended combustion.
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The opening 108 also preferably provides access to a blade 110 that is positioned adjacent to the opening 108. As shown, the blade 110 is removably coupled to a bracket 112 by a number of fasteners 114. The bracket 112 is further removably coupled to the outer shell 102 by several fasteners 114 such that an edge of the blade 110 is exposed (e.g., accessible) in the interior portion 107 along the opening 108 (e.g., see
It follows that the blade 110 is preferably positioned in the interior portion 107 of the outer shell 102 such that it comes into contact with objects that are inserted into the opening 108. In other words, the blade 110 is positioned adjacent to the opening 108 such that it comes into contact with a spark rod that is inserted in the opening 108. Referring momentarily to
As shown, the opening 108 in the outer shell 102 is large enough to receive a spark rod 202. The opening 108, in combination with the position of the blade 110 and bracket 112, as well as the guide ramp 204 and arms 205 along the upper end 104, work in combination to direct the spark rod 202 along a preferred orientation. For instance, the arms 205 extend from the upper end 104 and interior walls 210 to form a chamber 207 that is configured to contain any sparks that are produced against the blade 110 which is adjacent thereto. According to some approaches, the arms 205 and interior walls 210 may form a chamber 207 that is about one quarter the overall dimensions of the fire-starter 100 profile. In other words, the sparks produced by the blade 110 may be confined to deliver a higher number of sparks to kindling or some other fuel source that is placed in the chamber 207, e.g., to increase the chances of producing a flame.
As noted above, a spark rod 202 inserted into the opening 108 preferably comes into contact with a blade 110. While some approaches achieve this contact by passively directing spark rods 202 inserted into the opening 108, some approaches implement a biasing mechanism that is configured to direct a spark rod 202 inserted into the first opening 108 towards the blade 110, and exert a force on the spark rod 202 while the spark rod is in contact with the blade 110. For example, see biasing mechanisms 500 in
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Ferrocerium rods, commonly referred to as “ferro rods”, use ferrocerium which is a man-made metallic material that produces sparks when struck by a harder material (e.g., such as steel). Ferrocerium is an alloy that usually contains iron, cerium, and small amounts of other metals like magnesium, praseodymium, and neodymium. Thus, when ferrocerium is scraped or struck with a hard (and ideally sharp) striker, shards of the ferrocerium are shaved off and ignited due to the friction, producing hot sparks that can reach temperatures of 3,000 degrees Celsius (5,430 degrees Fahrenheit). These sparks can be used to ignite tinder and start a fire.
Using ferrocerium is particularly desirable due to its weather resistance, but is in no way limiting. For example, some approaches may use magnesium shavings in combination with a spark generating material like ferrocerium. Unlike matches or lighters, spark rods that use materials like magnesium, ferrocerium, etc., work even when wet. This makes them ideal for use in challenging conditions.
A single spark rod can also be used thousands of times, has no moving parts, and are relatively lightweight. Preferably, the fire-starter is used in combination with quality tinder, e.g., such as dry grass, birch bark, cotton balls, etc. As noted above, the tinder is preferably placed in the interior portion 107 of the outer shell 102, such that the tinder is protected from any gusts of wind or moisture. Placing the tinder inside the outer shell 102 also helps direct the sparks that are generated towards the tinder. Thus, rather than moving the outer shell 102 and blade 110, it is often more desirable to keep the blade stationary, while pulling the spark rod against the blade 110. This further helps direct the generated sparks to the tinder rather than being scattered.
It follows that, by scraping the spark rod 202 against the blade 110, fragments are removed from the rod and exposed to oxygen in the air, thereby oxidizing the fragments of the spark rod and causing them to ignite due to the remarkably low ignition temperature of spark rod materials (e.g., ferrocerium), which can be around 325 degrees Fahrenheit).
Moreover, because the blade is positioned in the interior portion 107 of the outer shell, the sparks that are produced by scraping the spark rod 202 against the blade 110 are kept inside the fire-starter 100. This effectively protects the sparks that are produced and directs them towards whatever is located in the interior portion 107. For example, tinder (e.g., fuel for fire) may be placed on a surface, and the fire-starter 100 may be placed directly over the tinder, such that the tinder is positioned in the interior portion 107. As a result, sparks produced by scraping a spark rod against the blade 110 are directed to the tinder and protected from harsh conditions, like gusts of wind and desirably improves the chances of the sparks igniting the tinder and starting a fire.
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For instance, a number of protrusions 118 may be configured to be inserted into corresponding recesses positioned along a bottom of the sidewalls 106 (e.g., see protrusion 118 inserted in recess 119 of
The fire-starter 100 is also shown as being configured to receive a tray 120. Depending on the approach, the sidewalls 106 and/or interior portion 107 may be configured such that the tray 120 is “received” differently. In some instances, opening 122 in the outer shell 102 is shaped such that the tray 120 may be slid into the opening 122. It follows that the tray 120 and the outer shell 102 may be removably coupled to each other in response to the tray 120 being slid into a secured position.
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In some approaches, a locking mechanism may be used to more securely couple the tray 120 to the outer shell 102. In other words, locking mechanisms may be used to secure the tray 120 in the secured position relative to a remainder of the fire-starter 100 (e.g., as seen in
However, it should be noted that the tray 120 may be selectively coupled to the outer shell 102 differently depending on the approach. For example, the tray 120 may have an upper form factor that is configured to interlock with (e.g., nestle into) the interior portion 107 of the outer shell 102. It follows that the outer shell 102 may simply be stacked on top of the tray 120 to selectively couple the two together.
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In the recessed area 128, a partition 130 separates a first area from a remainder of the recessed area 128. In preferred approaches, the first area 128a is configured to receive and secure a spark rod therein while the lid 126 is closed (e.g., removably coupled to the body of the tray 120). It follows that the first area may include materials that have been formed to securely hold a variety of different spark rod types.
However, a remainder 128b of the recessed area may be used to store additional items. In some approaches, the remainder 128b may be configured to receive and secure tinder therein while the lid 126 closed (e.g., as seen in
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In some approaches, the bracket 112 may be configured to position the blade 110 such that the angle θ is between about 0 degrees and about −20 degrees, more preferably between about −5 degrees and about −15 degrees, still more preferably between about −8 and about −12 degrees, and ideally about −10 degrees. The angle at which the blade 110 is oriented relative to the vertical reference plane 208 affects the interaction between a spark rod and the blade itself. For example, a sharper angle may correspond to a greater transfer of energy into the spark rod, while a shallower angle may correspond to a less efficient transfer of energy.
An edge or surface of the blade 110 that comes into contact with a spark rod inserted in the opening 108 may depend on the size of the spark rod, the orientation of the spark rod, whether a biasing mechanism is located in the fire-starter, etc. Edges of the blade 110 are preferably smooth and not serrated (e.g., non-serrated) to achieve relatively uniform performance regardless of how the spark rod is inserted into the fire-starter.
The material composition of the blade 110 may also vary depending on the particular approach. However, it should be noted that the blade 110 preferably uses materials that are at least a predetermined hardness. For example, materials that have a value of at least 50 on the Rockwell C (RC) scale may be used to form the blade 110, more preferably a value of at least 60 on the RC scale, still more preferably a value of at least 62 on the RC scale. Accordingly, the blade 110 may include one or more hardened metals or ceramics. For example, a non-limiting example of a material that may be used to form the blade 110 includes high speed steel (HSS) with an RC rating of about 62. The HSS may further be heat treated before having the edges of the blade 110 reground. In another non-limiting example, the blade 110 may include one or more different types of zirconia (e.g., such as zirconia-3y-tzp). In still another example, the blade 110 may include colored zirconia.
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This is desirable, as the airflow generated by the sidewalls directing airflow from the opening 108 direct the sparks formed by the spark rod towards a fuel source positioned towards the bottom of the interior portion of the outer shell. It should also be noted that the interior walls 210 are configured in some approaches to stabilize the tray in the secured position. In other words, the interior walls 210 may extend sufficiently into the interior portion 107 that a tray and outer shell 102 are firmly coupled to each other while in the secured position.
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As shown, the cap 302 includes a base 304 and an attachment point 306. The base 304 of the cap 302 preferably covers the opening such that the blade 110 is protected from any damage and/or unintentional wear. The cap 302 may also help seal (e.g., protect) the interior portion 107 while the fire-starter 100 is not in use. It should also be noted that the cap 302 shown in
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According to an example, the remainder 128b of the recessed area may be configured to receive and secure a metallic container with a removable lid. In such example, the remainder 128b may have a length L of about 3.75 inches, a width W of about 2.45, and a depth (measured in a direction perpendicular to the length L and width W plane) of about 0.8 inches. However, it should be noted that the specific dimensions that are provided are in no way intended to be limiting, and the remainder 128b, the first area 128a, and/or any other portions of the recessed area 128 (e.g., such as the indented area 404) may be changed to accommodate components of desired dimensions and/or general shapes. This, in combination with a magnet secured in the indented area 404 reduces the amount of noise generated by components stored within the fire-starter 100, which in turn increases its utility in noise sensitive environments.
Latching mechanisms 406 may also be used to secure the tray 120 in the opening of the fire-starter (e.g., see opening 122 of
It should be noted that features in the recessed area 128 of the tray may be configured to work in combination with features implemented on the lid 126 of the tray 120. For example, the first area 128a of the recessed area 128 may be configured (e.g., have specific dimensions) to work in combination with extensions along an inner surface of the lid. Looking to
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Looking at the detailed side views of the biasing mechanism 500 in
It should also be repeated that the biasing mechanism 500 illustrated in
While various approaches have been described above, it should be understood that they have been presented by way of example only, and not limitation. Thus, the breadth and scope of an approach of the present invention should not be limited by any of the above-described exemplary approaches, but should be defined only in accordance with the following claims and their equivalents.