Abstract: A dual fuel vent free gas heater having at least one gas burner with a plurality of gas outlet ports. The gas outlet ports are in flow communication with at least one pilot flame burner. At least one fuel injector feeds fuel to the burner providing for introduction of more than one fuel to the burner. Optionally, an oxygen detection system, manual control valve, linkage, and/or shut off control system may be incorporated into the dual fuel vent free heater.

Abstract: A dual fuel vent free gas heater having at least one gas burner with a plurality of gas outlet ports in an upper surface thereof. The gas outlet ports are in flow communication with at least one pilot flame burner. An adjustable fuel injector or at least two fuel injectors feed fuel to the burner providing for introduction of more than one fuel to the burner. Optionally, an oxygen detection system, manual fuel selection control valve, and/or temperature shut off control system may be incorporated into the dual fuel vent free heater.

Abstract: A cooking apparatus, in which lamps are conveniently and quickly replaced, including a lamp assembly having a lamp casing accommodating lamps and covering an irradiation hole formed in a front panel, and a transparent plate completely covering the irradiation hole. The lamp casing is screwed to the front panel, or is hinged to the front panel to allow rotation of the lamp casing. An open bottom of the lamp casing is covered with a lamp cover screwed or hooked to the lamp casing. A front cover is screwed to the front panel to cover the lamp assembly, or is hinged to the front panel to allow rotation thereof.

Abstract: Torch tip for a torch, the tip adapted to be in fluid communication with a fuel gas and oxygen source for generating a flame, the torch tip including a tubular or substantially tubular body having a plurality of flame emitting spaced orifices, wherein the tubular body preferably is substantially U-shaped and includes a pair of spaced substantially parallel elongated legs. The torch tip can be used to simultaneously heat a plurality of closely spaced pipes for ease of removal or attachment to an object such as a reversing valve.

Abstract: A safety switch device for a gas jet soldering gun includes a ignition push button having an outer periphery provided with a locking drive block, a housing having an inner wall defining an L-shaped drive slot mating with the locking drive block, and a spring mounted in the ignition push button for providing an axial thrust and a rotational torque. In such a manner, the user has to rotate the ignition push button to a proper position so that the ignition push button can be pressed to drive the igniter to ignite the fire, thereby preventing a child from freely opening the gas jet soldering gun.

Abstract: A heating apparatus using liquefied gas comprises a control valve which controls the gas flow rate by the rotating operation of a flow rate control member and which is rendered open to discharge a gas under flow rate control from the top end of a cylindrical valve body when the body is caused to slide, and a control valve operating mechanism mounted to the control valve which causes the valve body to slide when the mechanism is displaced toward axially, as well as causes the flow rate control member to rotate when the mechanism is rotated circumferentially.

Abstract: A portable gas forge. The forge is comprised of a housing having an insulated interior and an opening for insertion of the article to be heated such as a horseshoe or the like. The forge is resistant to blow-out by wind when used in the field and has a specially designed burner connected to the top of the housing. The burner is connected to a source of gas such as an LP gas cylinder. A gas orifice is connected to an enlarged burner pipe having a bell-shaped primary air inlet adjacent the gas orifice. A source of secondary air is located at the exterior burner pipe connection to the housing to obtain maximum flame concentration in the housing and inhibit back flaming.

Abstract: The present invention is a heater box for use in combination with a heating unit in an improved portable soldering furnace which includes a casing having a base and a hood which covers the base. The base has a first compartment wherein a soldering iron, having a shaft, a handle and a soldering head, and a second compartment. The heating unit includes a cylindrical bottle, which holds a flammable gas under pressure, a valve, which is mechanically and fluidly coupled to the cylindrical bottle, and a burner tube, which is mechanically and fluidly coupled to the valve. The heating unit is disposed in the second compartment of the base.The heater box includes a heating chamber having a back wall, a bottom wall and a pair of side walls and being open at both its front and its top and it is disposed in the second compartment of the base and mechanically coupled to the heating unit. The heater box also includes an insulating apparatus for insulating the heating unit from the heating chamber.

Abstract: A self-clean oven having means for passing cooling air over the heated walls of the oven and further having means for supplying combustion air by normal inspiration to the oven burners independently of the flow of cooling air, and having still further means for mixing hot combustion products exhausted from the interior of the oven with exhausted cooling air to prevent passage of excessively hot air into the atmosphere.

Abstract: A light weight, portable, and self-contained soldering iron heating device in which one or more propane gas containers or equivalent provide fuel to two burners through a manifold which has independent burner fuel controls. The burners are located in a fire box which supports a cradle in which two soldering irons may be placed. The fire box is fitted with a hinged hood, provides for rapid and economical heating, and confines the flame so as to be safe for use in areas selected for soldering, with the hinged hood providing easy access to the burners for servicing. The fuel supply and fire box are positioned side-by-side on a horizontal base and are separated by an integral, vertical, combined sheet metal, heat shield and tubular handle. This configuration eliminates the need for any insulation, results in a low center of gravity allowing use on inclines up to for example thirty degrees, and permits single hand carriage.