F - Mech Eng,Light,Heat,Weapons – 24 – B
Patent
F - Mech Eng,Light,Heat,Weapons
24
B
F24B 1/181 (2006.01) F24B 1/182 (2006.01) F24C 1/16 (2006.01)
Patent
CA 2302730
The subject invention describes a portable/transportable Patio or Camp-site Heater, or Fire-pot, in which the preferred embodiment uses a partially manufactured, new or discarded propane cylinder modified by the addition of a chimney and metal stand. Ventilation holes are cut into the base of the cylinder so as to provide primary combustion air to the fuel inside the cylinder. An oval hole cut into the front lower half of the cylinder is designed to provide secondary combustion air to the fire, and to allow the user to see the conflagration. It is designed to consume relatively small amounts of fuel in a manner which creates intense heat inside the 'OTPOT. This heat is transferred to the walls of the pot and its chimney so as to raise the temperature of the metal to the point at which it radiates significant amounts of heat to the surrounding seated persons. The design enables the fire to consume smoke particles (so that little smoke is emitted from the chimney), and also ensures that the combustion products released from the chimney are at a high temperature, so that they rise rapidly into the atmosphere and minimize inconvenience to the surrounding seated persons. The preferred embodiment of this invention uses solid fuel - wood, charcoal, or briquettes. The 'OTPOT can also be used to cook food (e.g.roast potatoes or corn), roast marshmallows or other tid-bits, or to boil liquids or fry food. The design has a low centre of gravity and a stable stand, and it can be fitted with spark guards to minimize risks of fire in adjacent property. It can stand on open ground or in a metal tray depending upon local needs, and it is easily portable. The 'OTPOT is expected to have a useful lifetime of several years.
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