US 20080264408 A1
A burner assembly having a burner plate provided with a plurality of spaced apart nozzles thereon. A plurality of pilot burners are disposed at different locations proximate the burner plate. The pilot burners can be partially shielded within canopies with the burner plate being unshielded.
1. A burner assembly comprising:
a body containing a burner system;
a plate shaped burner member positioned at an upper portion of the body, and having an exposed top surface;
a plurality of nozzles disposed at spaced apart locations on the exposed top surface of the burner member; and
a plurality of pilot burners, each being disposed proximate a different location on the exposed top surface of the burner member.
2. The burner assembly of
3. The burner assembly of
4. The burner assembly of
5. The burner assembly of
6. The burner assembly of
7. The burner assembly of
8. A burner assembly comprising:
a table section attachable to the body;
a burner having a plate shaped top surface and an internal chamber located beneath the top surface, with a plurality of nozzles positioned above the internal chamber, each nozzle having a corresponding discharge opening on the top surface of the burner plate, and wherein gas from the internal chamber can be discharged through the plurality of nozzles; and
a plurality of pilot burners positioned proximate the burner at different positions with respect to the top surface of the burner.
9. The burner assembly of
10. The burner assembly of
11. The burner assembly of
12. The burner assembly of
13. The burner assembly of
14. The burner assembly of
15. The burner assembly of
16. A method of operating a decorative burner assembly comprising:
allowing a pressurized fuel to enter an interior chamber of a burner member, and to be discharged through a nozzle having an opening proximate a plate-like surface, the plate-like surface and nozzle opening being fully exposed to avoid obscuring a decorative or reflective surface feature on the plate-like surface; and
igniting the fuel using a plurality of pilot burners positioned near different positions on the plate-like surface.
17. The method of
18. The method of
19. The method of
20. The method of
1. Field of the Invention
The present invention relates to burners, and more particularly, to decorative outdoor burners, or fire bowls, having shielded pilot burners.
2. Description of Related Art
Decorative outdoor burner devices have become a popular luxury in the United States and elsewhere. They are often used to provide heat, ambience and lighting to such locations as a patios, backyards, and porches, to name a few. Many of these outdoor burner devices include bowl-like body configurations, and are often referred to by retailers as “fire bowls” or “fire pits.”
Many of the decorative outdoor burners use wood as fuel, but gas fueled outdoor burners are also available. Gas burners can generally experience flameout problems in the face of wind or other environmental elements, and the nozzles of such decorative outdoor burners are therefore often screened from wind. For example, in many presently available gas fueled fire pits, the burner is screened from wind by providing high sidewalls around the burner nozzles, enclosing the burner in a chamber where the fire burns, or covering the burner nozzles with decorative rockery, such as a lava rocks. As such, limitations exist in the flexibility of design.
Some embodiments of the present invention include a burner assembly comprising a burner plate. The burner plate can have a top surface and there can be an internal chamber located beneath the burner plate. The burner plate can have a plurality of nozzles located thereon, with the nozzles being positioned above the internal chamber, and with each nozzle having discharge openings on the top surface of the burner plate. Gas from the internal chamber can be discharged through the plurality of nozzles.
A plurality of pilot burners positioned proximate the burner plate, can each be shielded for decorative effect, or to shield the pilot burners from environmental elements such as wind. Each of the pilot burners can be shielded within a separate canopy. The canopies can be formed from a surface of a perimeter plate. The perimeter plate can be configured to surround the burner plate, and can have a central opening in which the burner plate is disposed.
The surface of the perimeter plate and burner plate can be fully exposed, rather than shielded or screened, as the plurality of pilot burners are provided to help re-ignite a flame above the burner, even if wind causes a flameout. Thus, in some embodiments, the perimeter plate and burner plate can also have reflective surfaces to help maximize light provided by the burner assembly. Furthermore, in some embodiments of the present invention, the surfaces of the perimeter plate and burner plate are decorative, and provided with decorative patterns, since they can be visible and exposed without being shielded for protection from flame-out.
In the following description, certain specific details are set forth in order to provide a thorough understanding of various embodiments of the invention. However, upon reviewing this disclosure, one skilled in the art will understand that the invention may be practiced without many of these details. In other instances, well-known structures related to burner assemblies and pilot systems have not been described in detail to avoid unnecessarily obscuring the descriptions of the embodiments of the invention.
Various embodiments of the present invention are described in the context of decorative outdoor burners that can provide heat, ambience and lighting. However, as those skilled in the art will appreciate after reviewing this disclosure, various types of burner assemblies are contemplated herein. The context described and illustrated herein is not intended to be limiting and is provided to illustrate example embodiments of the present invention.
Referring now to
Still referring to
In some embodiments of the present invention, each of the plurality of pilot canopies 8 shown in
Also, as can be seen in
The pilot burners 30 are at least partially shielded from environmental influences within the canopies 8. Furthermore, the pilot canopies 8 can provide decorative effect to the burner assembly 2, such as by, for example, decoratively concealing the pilot burner 30.
It is also noted that the provision of multiple pilot burners 30, one situated within each pilot canopy 8 at different sides or locations of the burner plate 20, such as in a diametrically opposed fashion as illustrated in
As best seen in
Although specific embodiments and examples of the invention have been described supra for illustrative purposes, various equivalent modifications can be made without departing from the spirit and scope of the invention, as will be recognized by those skilled in the relevant art after reviewing the present disclosure. The various embodiments described can be combined to provide further embodiments. The described apparatus and methods can omit some elements or acts, can add other elements or acts, or can combine the elements or execute the acts in a different manner or order than that illustrated, to achieve various advantages of the invention. These and other changes can be made to the invention in light of the above detailed description.
In general, in the following claims, the terms used should not be construed to limit the invention to the specific embodiments disclosed in the specification. Accordingly, the invention is not limited by the disclosure, but instead its scope is determined entirely by the following claims.