Abstract: A jet type gas cooker includes a burner head having a mixing chamber therewithin, wherein a grid element is disposed at a bottom side of the mixing chamber of the burner head; a flame controller seated on top of the burner head; a fuel gas pipe extended to the bottom side of the burner head for ejecting fuel gas into the mixing chamber; and a gas flow disturbing mixer supported within the mixing chamber of the burner head for mixing the fuel gas with air to form a combustion gas within the mixing chamber.

Abstract: A reformer (5) which generates hydrogen-rich reformate gas by causing a catalytic reaction of fuel and air comprises a premixing chamber (12) for premixing the fuel with the air. High temperature air is supplied to the premixing chamber (12) from an air intake tube (13) via an orifice (14). A fuel injector (16) injects the fuel into the flow of the high temperature air in the premixing chamber (12) to generate fuel-air mixture. A homogenizing filter (17) homogenizes the composition of the fuel-air mixture in the premixing chamber (12) and supplies a uniform fuel-air mixture to a reforming catalyst (11).

Abstract: A drafting apparatus in a furnace. A buffer board having a plurality of gas intakes is disposed in a front end of the drafting apparatus. A laminar flow board having a plurality of gas outtakes is disposed in a rear end of the drafting apparatus. A drafting region is enclosed by the drafting apparatus. The drafting region comprises at least one drafting board to draft and redirect the gas flow. A laminar flow is then obtained to flow through the outtakes on the laminar board.

Abstract: A portable apparatus for warming a cup and its contents has a fuel reservoir connected through a valve controlled by a snap switch to a combustion cage. A thermocouple under the combustion cage returns the snap switch to an "OFF" position, cutting off the flow of fuel, once a predetermined temperature has been reached.