Portable fireplace having a refractory material

Abstract

A portable fireplace is disclosed. The portable fireplace may include a receptacle and a refractory liner. The receptacle may have a base and a wall, and the wall may extend upward from the base. An interior side of the wall and an interior side of the base may define a burn chamber that is open to an environment external to the receptacle. The refractory liner may be positioned within the burn chamber, and the refractory liner may engage the interior side of the base and the interior side of the wall. The refractory liner may be configured to receive and absorb at least a portion of a flammable substance.

What is claimed is: 
     
         1 . A portable fireplace comprising:
 a receptacle having a base and a wall, the wall extending upward from the base, wherein an interior side of the wall and an interior side of the base define a burn chamber open to an environment external to the receptacle; and   a refractory liner positioned within the burn chamber, the refractory liner engaging the interior side of the base and the interior side of the wall, and the refractory liner configured to receive and absorb at least a portion of a flammable substance.   
     
     
         2 . The portable fireplace of  claim 1 , wherein:
 the refractory liner engages the interior side of the base and at least a portion of the interior side of the wall.   
     
     
         3 . The portable fireplace of  claim 1 , wherein:
 the refractory liner comprises at least one of aluminum oxide (Al 2 O 3 ) or silicon oxide (SiO 2 ), or a combination thereof.   
     
     
         4 . The portable fireplace of  claim 1 , wherein:
 the refractory liner has a refractory exterior side opposite a refractory interior side, the refractory exterior side of the refractory liner engaging the interior side of the wall.   
     
     
         5 . The portable fireplace of  claim 4 , further comprising:
 a ceramic-based mesh, the ceramic-based mesh engaging the refractory interior side of the refractory liner and configured to limit a flammability of the flammable substance by minimizing an intake of oxygen (O 2 ).   
     
     
         6 . The portable fireplace of  claim 5 , wherein:
 the ceramic-based mesh comprises at least one of an alumina- or silica-based ceramic fiber, or a combination thereof.   
     
     
         7 . The portable fireplace of  claim 1 , wherein:
 the flammable material comprises at least one of ethanol or isopropyl alcohol, or a combination thereof.   
     
     
         8 . The portable fireplace of  claim 1 , wherein:
 the receptacle comprises at least one of ceramic, high-temperature refractory metal, heat-resistant stone, granite, marble, limestone, sandstone, slate, quartz, ceramic, concrete, ceramic, or a castable refractory material, or a combination thereof.   
     
     
         9 . The portable fireplace of  claim 1 , wherein:
 the receptacle comprises a generally spherical geometry, a generally cylindrical geometry, or a generally polyhedral geometry.   
     
     
         10 . The portable fireplace of  claim 1 , wherein:
 the interior side of the wall has an exterior side of the wall opposite thereto.   
     
     
         11 . The portable fireplace of  claim 10 , wherein:
 the exterior side of the wall and the interior side of the wall co-extend upward from the base, such that the exterior side of the wall and the interior side of the wall form an upper portion of the receptacle, the upper portion defining an opening to the burn chamber.   
     
     
         12 . The portable fireplace of  claim 11 , wherein:
 a surface of the upper portion of the receptacle is generally perpendicular to a plane defined by the interior side of the wall and a plane defined by the exterior side of the wall.   
     
     
         13 . The portable fireplace of  claim 11 , further comprising:
 a collar positioned atop the upper portion of the receptacle, the collar having geometrical dimensions that decrease a size of the opening to the burn chamber, so as to limit exposure of the burn chamber to the environment external to the receptacle.   
     
     
         14 . The portable fireplace of  claim 11 , further comprising:
 a collar positioned adjacent to the upper portion of the receptacle, the collar having geometrical dimensions that decrease a size of the opening to the burn chamber, so as to limit exposure of the burn chamber to the environment external to the receptacle.   
     
     
         15 . The portable fireplace of  claim 14 , wherein:
 an inner surface of the upper portion of the receptacle defines the opening to the burn chamber; and   at least a portion of the collar contacts the inner surface of the upper portion of the receptacle.   
     
     
         16 . The portable fireplace of  claim 14 , wherein:
 the collar is removably coupleable to the upper portion of the receptacle.   
     
     
         17 . The portable fireplace of  claim 16 , wherein:
 the collar configured to couple to the upper portion of the receptacle via an interference fit between a substantially round outer edge of the collar and an inner surface of the upper portion of the receptacle.   
     
     
         18 . The portable fireplace of  claim 1 , wherein:
 the environment external to the receptacle comprise at least one of oxygen (O 2 ), ammonia (NH 3 ), butane (C 4 H 10 ), carbon monoxide (CO), hydrogen (H 2 ), methane (CH 4 ), or propane (C 3 H 8 ), or a combination thereof.   
     
     
         19 . A portable fireplace comprising:
 a receptacle having a base and wall, wherein the wall has a wall interior side opposite from a wall exterior side, and the base has a base interior side opposite from a base exterior side;   the wall extending upward from the base, such that the wall exterior side and the wall interior side form an upper portion of the receptacle, and the wall interior side and the base interior side define a burn chamber; and   a refractory liner positioned within the burn chamber, the refractory liner engaging the base interior side and the wall interior side, and the refractory liner configured to receive and absorb at least a portion of a flammable substance.   
     
     
         20 . The portable fireplace of  claim 19 , further comprising:
 a collar positioned adjacent to the upper portion of the receptacle, the collar having geometrical dimensions that decrease a size of an opening to the burn chamber, so as to limit exposure of the burn chamber to an environment external to the receptacle.