The present disclosure is generally directed to torch lamp systems, and more particularly to lamp assemblies and systems having a fuel source to provide an open flame.
Conventional torch lamps or lanterns are used for outdoor lighting, festive lighting, ambiance, to provide warmth, etc. Additionally torch lamps can be used to mark walkways or to deter insects from a selected area. Typically, torch lamps are permanently installed or fixed to moveable structures that can be placed on patios, garden areas, picnic and/or outdoor eating areas. Many torch lamps can provide a flame fueled by vaporous gas (e.g., natural gas, propane, kerosene, etc.), while others can be fueled with liquid, solid, or particle-based fuel.
The present disclosure is directed generally toward torch lamp systems and flame lamp assemblies for producing swirling flames. One aspect of the disclosure is directed toward a torch lamp system connectable to a source of fuel. In one embodiment the system includes a burner assembly connectable to the source of fuel and configured to release fuel at a fuel release point for combustion to provide a flame. The system can also include a lamp assembly having an interior chamber configured to contain the flame swirling vortically due to air convection therein. The chamber can be positioned above the fuel release point and have an open upper end portion. Additionally, the chamber can be defined by a plurality of panels positioned adjacent to one another along vertical panel edges and spaced apart from one another by gaps. The gaps provide vertically oriented air intake slots between adjacent panels to provide vortical convection airflow therein for swirling the flame. The torch lamp system can further include a fuel dispersal guide in the chamber positioned above the fuel release point. The fuel dispersal guide can be positioned so that fuel flowing from the fuel release point is distributed radially outward from the fuel release point toward the panels.
Another aspect of the disclosure is directed toward a flame lamp assembly for providing a flame having a continuous spiral movement. In one embodiment, the flame lamp assembly can include a plurality of spaced apart panels and a frame for supporting the panels. The panels can be generally vertically oriented and positioned by the frame to form a chamber for housing the flame. The frame can support the panels such that adjacent panels are spaced apart from each other at panel junctions along vertical edges of the panels to create a plurality of air intake slots in communication with the chamber. Additionally, the panels can be off-set from adjacent panels. Furthermore, the plurality of air intake slots can be in communication with the chamber to allow air to flow from an external environment into the chamber at an angle to provide vortical air flow within the chamber. The flame lamp assembly can also include a burner assembly positioned below the chamber and configured to receive fuel from a fuel source and to provide a fuel flow from a fuel release point to the chamber for ignition to provide the flame.
A further aspect of the disclosure is directed toward a torch lamp system including a flame lamp assembly. In one embodiment the flame lamp assembly includes a burner assembly for receiving fuel from a fuel source and releasing fuel at a fuel release point. The flame lamp assembly can also include a base positioned over the burner assembly and an inlet disposed in the base. The inlet can be aligned with the fuel release point such that fuel is directed through the inlet. The flame lamp assembly can further include a chamber supported by the base in a generally vertical orientation and having an open upper portion spaced apart from the base, the chamber defined by a plurality of panels positioned adjacent to one another along vertical panel edges and spaced apart from one another by gaps. The gaps provide vertically oriented air intake slots between adjacent panels. The flame lamp assembly can also include a fuel dispersal guide in the chamber. The fuel dispersal guide can have a plate supported at a selected distance above the inlet disposed in the base so that fuel flowing from the fuel release point and through the inlet is distributed radially outward from the fuel release point.
In order that features and characteristics of the disclosure will be readily understood, a more particular description of aspects of the disclosure briefly described above will be rendered by reference to specific embodiments and the appended drawings. Understanding that these drawings depict only typical embodiments of the disclosure and are not therefore to be considered to be limiting of its scope, the disclosure will be described and explained with additional specificity and detail through the use of the accompanying drawings.
The present disclosure describes embodiments of torch lamp systems that provide a distinctive, swirling flame movement. Several specific details of the disclosure are set forth in the following description and in
As illustrated, the lamp 110 provides a flame chamber 112 to house the flame 102 while the fuel and convection air flow are directed into the chamber. The lamp 110 of the illustrated embodiment includes a chamber frame 114, a base platform 116 and a plurality of panels 118. The chamber frame 114 defines the general size and shape of the lamp 110 as well as the internal volume of the flame chamber 112 created within the lamp 110. The chamber frame 114 can position and support the base platform 116 and the plurality of panels 118 in a selected position that facilitates the swirling convection air flow into the flame chamber and the delivery of the fuel in a selected air-fuel mixture for ignition in the flame chamber. In one embodiment, the chamber frame 114 can include a base support 120 and a plurality of vertical support bars 121 coupled to the base support 120 for supporting the plurality of panels 118 in a generally vertical orientation. The chamber frame 114 can also include a top support 122 positioned apart from the base support 120 and coupled to an opposite end of the vertical support bars 121. In other embodiments, the chamber frame 114 may not include the vertical support bars 121 and/or the top support 122. For example, the panels may be rigidly fixed in a vertical orientation with the base support 120.
The base platform 116 can be fitted in the base support 120 of the chamber frame 114 and can be configured to cover and/or be positioned over the burner assembly 130. The base platform 116 includes an inlet 117 aligned with the fuel release point 132 of the burner assembly 130 and is positioned to receive fuel into a bottom portion 125 of the flame chamber 112 for ignition. The base platform 116 can also include one or more orifices 128a for inserting igniters, matches, or other ignition sources for lighting the released air-fuel mixture inside the chamber 112. The chamber frame 114 and the base platform 116 can include a durable, heat-resistant material such as metal, heat and/or fire resistant polymers, etc. The components of the chamber frame 114 (e.g., vertical support bars 121, top support 122, base support 120, etc.) can be securely fastened or otherwise connected to other chamber frame components using a plurality of fastening devices (not shown) and/or materials (e.g., screws, nuts and bolts, nails, adhesive, etc.).
The plurality of panels 118 can be supported in a generally vertical orientation relative to the base platform 116 and each individual panel 118 can be aligned along vertical edges 154 to adjacent panels. As illustrated in
As illustrated in
The plurality of panels 118 in the illustrated embodiment can be transparent and clear. In another embodiment, the panels 118 can be tinted, frosted, etched, patterned, or otherwise decorated while still providing visibility to the flame 102 within the chamber 112. Each of these panels 118 may be made of a durable, heat-resistant and/or fire-resistant material, such that when the lamp 110, including the chamber frame 114, is fully assembled, there is sufficient structural integrity to freely stand. The panels 118 are also configured to withstand high heat and flames 102. For example, the panels 118 may be made of glass, such as tempered glass or ceramic glass. In one embodiment, the panels 118 can be generally clear and the lamp 110 can include one or more removable and/or replaceable decorative overlays 119 (
In one embodiment, the panels 118 are joined while preserving elongated air intake slots 150 between the sides of the panels 118. For example, the plurality of panels 118 may be aligned to form a chamber 112 wherein one vertical edge 154a of a panel 118a is spaced apart from and extends beyond the abutting vertical edge 154b for an adjoining panel 118b. In this embodiment, each panel 118 has an extension portion 156 that extends beyond the vertical edge 154 of the adjacent panel 118. The extension portion 156 acts to direct external airflow through the air intake slots 150 and into the interior (Arrows A1-A4) of the chamber 112. The airflow through the air intake slots 150 is initially generally adjacent to the inner surfaces of the panels 118, and this airflow pattern causes a swirling or spiral motion of air (B) within the chamber 112 around the fuel release point 132. The spiraling motion of air (B) around an axis 158, due to convection, pushes the flame 102 (e.g.,
Referring back to
In the illustrated embodiment shown in
Together, the plates 142a-c smoothly direct the fuel radially outward within the chamber 112 and facilitate mixing the fuel with larger volumes of air. In one embodiment, the air-fuel mixture that occurs around and adjacent to the fuel release point 132 and the fuel dispersal guide 140 near the bottom portion 125 of the chamber 112 allows for efficient and clean burning of the fuel and inhibits significant buildup of by-product (e.g., carbon) on the inner surfaces of the panels 118. The fuel dispersal guide 140 is shaped to direct fuel flow radially outwardly toward the outer edge 146 (
The physical space maintained between the panels 118 may be preserved with the use of spacers (not shown) or by securing the panels 118 with the base support 120 of the chamber frame 114 in a manner to accommodate additional space between the panels 118. For example,
Once the panel 118 is placed in a desired location within the panel slot 160, a screw 165, such as a thumb screw, can be rotated to engage a back side of the screw-driven pressure plate 166 to press the pressure plate 166 against the bottom portion (not shown) of the panel 118 to prevent the panel from moving. Likewise, if the panel 118 needs to be removed from the chamber frame 114, the screw 165 can be rotated in an opposite direction to release pressure on the panel 118 from the screw-driven pressure plate 166.
In some embodiments, the vertical support bars 121 can extend from the base support 120 and define the terminal end 167 of the panel slot 160. The terminal end 167 is generally not flush with a corner region 168 of the base support 120. Accordingly, in one embodiment, the distance between the corner region 168 and the terminal end 167 defines a width of the air intake slot 150 (as shown in
The torch lamp system 100 also includes the burner assembly 130 for delivering fuel and metering flow rate of the fuel to the lamp 110. Referring back to
The burner assembly 130 can also include a fuel flow valve control 135a for allowing a user to open, close, or otherwise adjust a fuel flow valve (not shown), thereby controlling the flow of fuel through the burner assembly to the fuel release point 132. Additionally, the fuel flow valve control 135a can allow a user to control flow rate of the fuel to manage flame volume and/or height within the lamp 110 during operation. For example, the fuel flow valve control 135a can be a dial knob (shown in
In some embodiments, the fuel release point 132 is positioned to deliver fuel through a center portion of the base platform 116 and in alignment with a central axis, such as axis 158 (
Referring back to
Additionally, the burner assembly can include an ignition switch 135b (shown in
As shown in
Referring to
In operation, the torch lamp system 100 provides a flame 102 that moves in a substantially helical or vortical pattern up the chamber 112. As the air moves into the chamber 112 through the air intake slots 150 and circulates in the spiral motion (B) discussed above, the air comes in contact with the flow of burning fuel such that the resulting flame 102 in the lamp 110 moves in a helical fashion corresponding to the rising vortex of air present in the chamber 112. Accordingly, the spiraling flame 102 is created using natural convection and without requiring additional blowers or fans to create a swirling airflow within the chamber 112.
In some embodiments, the rate of fuel flow may be altered to a desired flow rate. The size of the flame 102 may depend on the rate of fuel flow from the fuel release point 132. As discussed above, the fuel flow rate may be adjusted with the fuel flow valve control 135a associated with the burner assembly 130. In another embodiment, the fuel flow rate may be increased or decreased by an adjustment at the fuel source 121.
When the torch lamp system 100 is activated, such that the burner assembly 130 is “on” and fuel is delivered to the fuel release point 132, and the fuel is ignited to produce a flame 102, the flame 102 swirls within the flame chamber 112. The fuel dispersal guide 140 facilitates the mixture of air with the fuel as the fuel enters through the inlet 117 in the base platform 118, and directs the fuel/air mixture to be burned away from the fuel release point 132 providing a flame 102 with a wide base. In one embodiment, the characteristics of the flame 102 can be adjusted by positioning the fuel dispersal guide 140 in an off-center orientation relative to the fuel release point 132 and/or relative to the central axis of the chamber 112. This off-center orientation of the fuel dispersal guide 140 can create an asymmetrical flow of fuel within the chamber 112, thereby altering the shape of the spiraling flame 102.
The torch lamp system 100 can be operated in any open air venue, such as, outdoors, garden areas, indoor patio areas, indoor rooms having sufficient air circulation, etc. Those of ordinary skill in the art will recognize that the size and shape of each panel 118 and the overall size and shape of the lamp 110 and the torch lamp system 100 may vary to accommodate various space restrictions, gas flow restrictions, airflow requirements, and user preference without substantial adverse affects to the benefits of the present disclosure.
The torch lamp system 100 can be mounted in a variety of locations using mounting assemblies.
In another embodiment, the torch lamp system 100, including the fuel source (not shown) can be transportable.
A fixed fuel line 906 can be aligned with the secured wall bracket 902. The wall-mounting assembly 900 can also include a hollow extension post 908 secured to and extending from the wall bracket 902 and a secured end 910. The hollow extension post 908 can extend from the wall bracket 902 a desirable length L1 from the vertical surface. The wall-mounting assembly 900 can also include a mounting platform 912 attached to an extended end 914 of the hollow extension post 908 and sized for receiving the flame lamp assembly 101. In some embodiments, the mounting platform 912 can include the housing 133 for the burner assembly 130. A fuel carrier line 916 can extend inside the hollow extension post 908 from the fixed fuel line 906 to the mounting platform 912 for delivering fuel to the burner assembly 130. As shown in the illustrated embodiment, the wall-mounting assembly 900 can also include a wall bracket cover 918 sized to cover the wall bracket 902. The wall bracket cover 918 includes a post aperture 920 for receiving the hollow extension post 908.
The lamp 210 may not include a frame or other support feature for securing the panels 212 in a generally vertical position. Referring to
Panel fasteners 214 may be any mechanical embodiment that connects panels 212 together or connects panels 212 to the base 218. Panel fasteners 214 may include, but are not limited to, clamps, hinges, adhesive, a corresponding pair of hook and loop strips, bracket and screws, or other fastening devices known in the art. The panel fasteners 214 may secure the panels 212 at any height or position on the panel 212 that will not significantly impact the airflow into the chamber 216 via convection to create a swirling flame 201, as discussed above with respect to
In one embodiment, the panel fasteners 214 may link a vertical edge 220a of a first panel 212a to an interior vertical portion of a second panel 212b such that the second panel has an extension 226 on the exterior of the lamp 210. In another aspect of the illustrated embodiment, the panel fasteners 214 may link the panels 212 such that there is a space between the panels 212. This space may be an air intake slot 228 such that air may flow into the interior flame chamber 216 of the lamp 210. The physical space maintained between the panels 212 may be preserved with the use of spacers (not shown) or by securing the panel fasteners 214 in a manner to accommodate additional space between the panels 212.
The plurality of panels 212, in one embodiment may include four panels 212 and the plurality of panel fasteners 214 may include four panel fasteners 214. In another embodiment, the plurality of panels 212 may include three or more panels 212. In one embodiment, the number of panels 212 may equal the number of air intake slots 228. In a further embodiment, the number of panels 212 may be greater than the number of air intake slots 228. In some embodiments, the number of intake slots 228 is two.
The panels 212 may be permanently attached such that the number of panels 212 of a lamp 210 is fixed. In another embodiment, the number of panels 212 in the lamp 210 is not fixed and additional panels 212 may be removeably attached. In some embodiments, the panel fasteners 214 may be adapted to open and close such that panels 212 may be removed or added to the lamp 210 to make the lamp 210 smaller or larger. Removable attachment of panels 212 may allow the lamp 210 accommodate a smaller or larger space or, in some embodiments, accommodate a smaller or larger flame 201. Additionally, the panels 212, in some embodiments, may be flat. In other embodiments, the panels 212 may be convex or concave.
From the foregoing, it will be appreciated that specific embodiments of the disclosure have been described herein for purposes of illustration, but that various modifications may be made without deviating from the disclosure. Furthermore, aspects of the disclosure described in the context of particular embodiments may be combined or eliminated in other embodiments. Further, while features and characteristics associated with certain embodiments of the disclosure have been described in the context of those embodiments, other embodiments may also exhibit such features and characteristics, and not all embodiments need necessarily exhibit such features and characteristics to fall within the scope of the disclosure. Accordingly, the disclosure is not limited, except as by the appended claims.
This application claims priority to U.S. patent application Ser. No. 60/894,864 filed Mar. 14, 2007, entitled FLAME LAMP ASSEMBLY WITH SWIRLING FLAME, which is incorporated herein by reference in its entirety.
Number | Date | Country | |
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60894864 | Mar 2007 | US |