The present invention relates to decorative miniature fireplaces and, in particular, a snuffer lid for a miniature fireplace having thermal insulating and soot-minimizing properties.
Miniature fireplaces are known in which fuel is burned in a chamber formed in a tubular body. In order to extinguish a fire in such a fireplace, it is typical to place an object, such as a coaster or other flat object, on top of the chamber to snuff out the fire. When such a fireplace is used indoors, such as on a table, the snuffer will accumulate soot from the top of the fireplace, which will be transferred to the surface of the table when the snuffer is removed for the next use of the fireplace. Additionally, the snuffer may become hot from remaining atop the fireplace, and thus become uncomfortable or hazardous to remove for subsequent use of the fireplace after a short interval.
The present invention provides a snuffer lid for a miniature fireplace. The lid comprises structural features which provide for safely extinguishing of a fire in the fireplace, limiting transfer of soot from the fireplace to surrounding surfaces on which the lid may be placed, maintaining a safe operating temperature, and other features and advantages which will be made apparent in the following specification and attached drawings made a part hereof.
Additional aspects and embodiments of the present invention will be made apparent in the Detailed Description and best understood in connection with the attached drawings, in which:
Referring now to
The fireplace 10 may further comprise feet or a base 14 so that the fireplace can be placed or moved on a tabletop or other surfaces without having the refractory material cause scratches. In a preferred embodiment, the base 14 is made of machined aluminum, and the base mates with and supports the bottom of the fireplace. The base 14 may further be finished, such as by painting, polishing or other machine finishing, powder coating, anodization or other decorative finishing techniques known in the art.
The body 12 is preferably cylindrical as shown, and may also be formed in rectangular, polygonal, or other shapes. A burn chamber 16 is defined by a floor and interior wall formed within the body 12. The top of the burn chamber is defined by an opening formed into the top of the body 12, defining a rim 18 around the top of the burn chamber 16. In operation, fuel is loaded into the burn chamber 16, the fuel is ignited by the user, and flames arise from the opening of the burn chamber. The fuel may be any flammable material, but is preferably a liquid flammable fuel such as an alcohol. Most preferably, the fuel is a clean burning fuel appropriate for indoor use such as isopropyl alcohol of a form that is readily commercially available in concentrations of about 70% and above, and most preferably about 90% and above. Since the principal combustion products of alcohols are carbon dioxide and water vapor, the fireplace may be safely used indoors with appropriate ventilation or circulation adequate to avoid carbon dioxide displacement of breathable air.
The fire in the fireplace may burn until the fuel is consumed and the fire ceases on its own. During use, the upper surface 22 of the fireplace 10 may become progressively warmer from the outer rim 24 of the body to the upper rim 18 of the burn chamber. The upper surface 22 may generally become too hot to comfortably or safely touch, and particularly in the region around the upper rim 18 of the burn chamber. Alternatively, the user may want to extinguish the fire before all of the fuel is consumed, for example, in order to avoid leaving the fireplace unattended upon being called away. Accordingly, the present invention provides a combined snuffer and lid, such as the snuffer lid 30.
The snuffer lid 30 comprises a plate 24 connected with a handle 32, which can be lowered onto the top of the fireplace 10 in order to extinguish the fire and cover the hot upper surface 22 of the fireplace 10. The plate 24 is preferably at least as large as the area of the upper opening of the burn chamber and is preferably of the same plan shape and size of the upper surface 22 of the fireplace 10, such that the outer rim 36 aligns with the top outer periphery of the fireplace 10 when the lid 30 is placed atop the fireplace 10, as shown in
After the flame is extinguished, the lid 30 may be left to remain in place to prevent contact with the hot upper surface 22 and also to prevent undesirable materials from entering the burn chamber. The plate 34 may be made of any suitable material capable of withstanding brief exposure to flame and the operating temperature of the upper surface 22 of the fireplace 10, and can be a ceramic or high temperature polymer or composite material. In a preferred embodiment, the plate is made of a metal such as aluminum which is lightweight and non-flammable. In a most preferred embodiment, the plate 34 and the handle 32 are made of the same material and matching finish as the base 14 to provide a balanced aesthetic.
The handle 32 may be shaped according to a desired style. In the preferred embodiment, the handle 32 comprises an extending lip or most preferably a truncated conical shape which narrows toward the plate and is wider at its top, in order to provide gravitational engagement with the user's fingers as it is brought into alignment with, and placed upon the top of, the fireplace 10.
As can be seen in
The outer rim 36 of the plate 34 may further comprise a skirt 50 around the periphery thereof to conceal the spacers from view when the lid 30 is in place. In the preferred embodiment the fireplace body 12 and the plate 36 are circular, and three spacers 42 are formed in and extend vertically from the bottom surface of the plate and radially at respective 120 degree positions. A radially inward portion 46 of the spacer 42 extends vertically downward longer than the radially outward portion 44 to form an abutment 48. When the lid 30 is placed atop the fireplace, the abutment 48 of the spacer 42 slidably engages with the upper wall and rim 18 burn chamber to axially align the lid 30 with the body 12 of the fireplace. The alignment structure thus provided by the abutments 48 of the spacer 42 in the preferred embodiment further prevents the lid 30 from sliding off of the top of the fireplace if laterally impacted or knocked.
As can be appreciated the alignment structure provided by the radially inward portion 46 and abutment 48 between the radially inward portion 46 and the spacing structure provided by the radially outward portion 44 of the spacer 42 can be separated in alternative embodiments to provide separate respective alignment and spacing structures. For example, the spacing structure in such alternative embodiments can be provided by any alternative structure or structures extending vertically from the bottom of the plate 36 into contact with the upper surface 22 of the fireplace, and likewise alternative alignment structures may be provided which extend from vertically from the bottom of the plate 36 into the burn chamber along the upper rim 18 thereof. In such alternatives as made apparent hereby, and in the preferred embodiment, the alignment structure extending into the burn chamber thus extends vertically farther downward from the plate (such as the radially inward portion 46 of the spacers 42) than the vertical extent of the spacing structure (such as the radially outward portion 44 of the spacers 42). This difference in height provides the additionally advantage of preventing soot, which may nonetheless accumulate on the top surface of the fireplace from impurities in the fuel and from inefficient combustion during snuffing, from being transferred from the upper surface of the fireplace to a tabletop or other surface upon which the lid may be placed when removed from the fireplace. Because the alignment structure extends into the void of the burn chamber, and is of greater vertical extent than the spacing structure, the alignment structure, such as the radially inward portions 46 of the spacers 42 will provide a limited contact area on which the lid will rest when placed on a surface other than the top of the fireplace. Accordingly, transfer of soot from the fireplace to the tabletop or other surface, as would otherwise occur with a flat plate, is substantially eliminated.
In yet a further alternative embodiment, the outer rim of the plate may extend beyond the outer periphery of the body of the fireplace, and an alignment structure may be provided by extending the skirt of the plate below the upper surface of the fireplace, when the lid is engaged thereto, such that the skirt along the other periphery of the fireplace aligns the lid. Likewise, spacers may optionally be provided on the underside of the plate for separation and insulation, and the longer vertical extent of the skirt will prevent soot transfer.
Referring now to
The foregoing detailed description is intended to describe the invention by way of example and is not intended to limit the scope of the invention within the broadest meaning of the appended claims.
Priority is claimed herein to U.S. Provisional Application No. 63/298,967 filed Jan. 12, 2022.