Abstract: A piezoelectric lighter includes a torch nozzle, having a receiving opening, received in the nozzle housing, a gas nozzle received in the nozzle housing at a position adjacent to the torch nozzle, and a fuel diverging system including a fuel guider having an fuel inlet communicating with the liquefied fuel storage and a fuel outlet, a first gas diffuser provided at the receiving opening of the torch nozzle to communicate the fuel outlet with the torch nozzle, and a second gas diffuser operatively connected to the fuel guider to communicate the liquefied fuel storage with the gas nozzle through the fuel lo inlet, in such a manner that the gas is released towards the torch nozzle and the gas nozzle through the first and second gas diffusers respectively to produce a torch flame and a flat flame in a synchronization manner.

Abstract: A compact, highly flexible and efficient, multi-positionable, multi-dimensional and multi-stage gas-fired heat exchanger system as described. The system is connectable in a forced air duct regardless of the angular position and size of the duct. The heat exchanger comprises one or more heat transfer tubes which are shaped and dimensioned as dictated by the customized use of the heat exchanger. The tubes are secured to a support panel as well as the gas burner associated with each of the inlet openings of the tubes. A position orientable gas valve is secured to a gas distribution manifold. A turbulator may be associated with at least some of the tubes to cause turbulence in the hot combustion flow in each of the tubes to modify the efficiency in heat transfer along one or more sections of the tubes by directing hot combustion gas along an inner circumferential wall of the tubes.

Abstract: A piezoelectric lighter includes a gas emission arrangement including a pair of jet nozzles and a gas emitting tube communicating with a liquefied gas storage respectively, a gas releasable valve extended from the liquefied gas storage for controlling a flow of gas to the gas emission arrangement, a pair of gas ejecting conduits connected from the gas releasable valve to the two jet nozzles respectively, and a gas ejecting duct connected from the gas releasable valve to the gas emitting tube. Therefore, the piezoelectric lighter is adapted for selectively producing either a pair of jet flames at the same time when the gas discharged to the two jet nozzles through the gas ejecting conduits or producing a visible flame when the gas discharged to the gas emitting tube through the gas ejecting duct.

Abstract: A thermostatic gas valve structure for a kitchen oven comprises a valve body and a body cover, manual and thermostatic valves built into the body to regulate a main flow of said main burner, an actuating shaft traversing said cover and a rotary control coupled to the shaft. The actuating shaft is also provided with reciprocal axial movement so as to push a thermoelectric safety valve, and with a pilot flow passageway departing directly from the safety valve, in order to maintain a standing pilot flow independent of the control turning movements, in which the “off” and “pilot” position markers coincide.

Abstract: A piezoelectric lighter includes a gas emission arrangement including a pair of jet nozzles and a gas emitting tube communicating with a liquefied gas storage respectively, a gas releasable valve extended from the liquefied gas storage for controlling a flow of gas to the gas emission arrangement, a pair of gas ejecting conduits connected from the gas releasable valve to the two jet nozzles respectively, and a gas ejecting duct connected from the gas releasable valve to the gas emitting tube. Therefore, the piezoelectric lighter is adapted for selectively producing either a pair of jet flames at the same time when the gas discharged to the two jet nozzles through the gas ejecting conduits or producing a visible flame when the gas discharged to the gas emitting tube through the gas ejecting duct.

Abstract: A piezoelectric jet lighter is adapted for producing both jet flame and visible in order to selectively light a cigarette, a cigar, and a pipe. The piezoelectric jet lighter includes a gas ejecting pipe having a gas releasable valve connected to a jet nozzle for producing the jet flame and two gas emitting nozzles for producing the visible flames respectively. To operate the piezoelectric lighter, a downward force must be applied on an ignition button to ignite the lighter wherein the gas is emitted from the gas ejecting pipe to the jet flame to produce the jet flame. While the downward force is released, the gas releasable valve is automatically switched for allowing gas transported to the gas emitting nozzles to produce the visible flame.

Abstract: A device for welding overlapping roof membranes comprising a chassis, an air discharge chute and a flame distribution assembly communicating with the air discharge chute. The flame distribution assembly includes a gaseous fuel source inlet, a primary burner, and an ignition source. A control unit ignites the primary burner by the ignition source. The blower connected to an inlet port of the air discharge chute directs heat generated by the primary burner through an air discharge outlet for welding the overlapping roof membranes.

Abstract: A windproof lighter includes a gas directing arrangement including a torch nozzle, a gas nozzle, and a gas directing unit including a torch directing conduit and a gas directing conduit for directing a flow of gas toward the torch nozzle and the gas nozzle respectively. A gas detouring unit is movably mounted to the casing to block up the flow of gas passing through the gas directing conduit while the torch directing conduit is remained open. An ignition system installed into the casing for producing sparks directed toward the gas nozzle to ignite the gas emitted from the gas nozzle to provide a visible flame, so as to ignite the gas emitted from the torch nozzle to provide a torch flame. Therefore, the lighter is capable of providing the torch and visible flames at the same time and providing only the torch flame while operating the gas detouring unit.

Abstract: A gas burner operating system includes a control unit installed in the body of a gas burner and connected to an electronic igniter in the body of the gas burner, the operating unit using a cock, a pressure differential device, a medium flowrate control valve and a low flowrate control valve to control the operation of the gas burner and the intensity of the burner flame, and an operating unit provided outside the body of the gas burner for enabling the user to control the operation of the control unit and the electronic igniter of the gas burner at a remote place away from the gas burner.

Abstract: A burner of radiant atmospheric type, comprising a porous ceramic element, positioned to close a chamber into which a gas/air mixture is fed, there being provided at least a second chamber adjacent to the first, both being closed by the porous ceramic element.

Abstract: A switch device for a gas burner includes a body engaged with a housing. The body defines an axial hole for rotatably receiving a driven shaft which has a first end secured in a rotation knob and a second end engaged with a barrel which can be rotated by the driven shaft. The barrel is screwed in the housing which is connected to a primary flame nozzle. When the rotation knob is pressed, the valve rod mounted in the barrel is forced by driven shaft to move linearly so as to open the valve hole directed toward the auxiliary flame. When the rotation knob is rotated, the passage directed toward the primary flame nozzle is opened.

Abstract: A gas appliance includes a pair of separate manifolds which each supply gas to two burner assemblies. Each manifold includes a relatively short and straight steel tube having a central section with a generally square-shaped cross-section and end sections with generally circular-shaped cross-sections, and a pair of end plugs closing the end sections to form a sealed interior space. The end plugs and the tube are swaged together at the end sections to form a gas-tight seal. A pair of bolt-through type valves are associated with each of the manifolds to regulate flow of gas from the manifolds to the burner assemblies. The valves have inlets directly secured to the manifolds and outlets connected to the burner assemblies with burner tubes. A pair of light-weight aluminum supply tubes connect a gas inlet with the two manifolds. The supply tubes are preferably secured to the manifolds with bolt-through type adapters located at the longitudinal centers of the manifold tubes and between the two valves.

Abstract: A radiant gas heater includes a first ceramic plaque burner and an adjacent and larger second plaque burner. A valve spindle is movable to establish in series "Low," "Medium" and "High" heat positions by first supplying gas in the vicinity of the first burner, then supplying gas in the vicinity of the second burner while momentarily maintaining the flow of gas to the first burner, next discontinuing the flow of gas to the first burner and finally by reestablishing the flow of gas to the first burner while maintaining the flow of gas to the second burner.

Abstract: A switch for a gas burner includes a shaft and a rod engaged with the shaft so as to be rotated by the shaft. A cylindrical member has two depressions formed in one end for engaging with the rod. A disc is secured to a housing and has a recess communicating with a slot. A barrel is rotatably engaged in the housing. A stem is engaged in the barrel and has a plug for enclosing the bore. The bore of the barrel is enclosed by the plug when the rod is engaged in the depressions of the cylindrical and is opened when the stem is moved by the rod and the ring.

Abstract: A radiant gas heater includes a first ceramic plaque burner and an adjacent and larger second plaque burner. A valve spindle is movable to establish in series "Low," "Medium" and "High" heat positions by first supplying gas in the vicinity of the first burner, then supplying gas in the vicinity of the second burner while momentarily maintaining the flow of gas to the first burner, next discontinuing the flow of gas to the first burner and finally by reestablishing the flow of gas to the first burner while maintaining the flow of gas to the second burner.

Abstract: A cooking assembly has a main burner, a pilot burner mounted in it and having a vent, a gas valve having separate main and pilot gas outlets, and a main-burner controller including a temperature sensor on the main burner, a control unit on the valve capable of varying gas output from the main gas outlet, and a capillary tube connected between the sensor and the control unit. This controller can vary gas flow from the main outlet in accordance with the temperature of the main burner as sensed by the sensor. An electrical igniter on the main burner can be energized by a switch on the valve. A pilot-burner controller connected to the switch includes a thermoelectric sensor in the pilot vent and blocks gas output from the gas outlets when insufficient heat is detected by its sensor and the switch is not closed.

Abstract: A thermostatic gas heater which permits the user to mechanically select the number of active heating elements, ranging from one to the total number of heating elements. The thermostat mechanically regulates gas flow to all active heating elements. No electricity is necessary for operation because all control components operate mechanically.

Abstract: The invention relates to a linear burner with jets extending through an opening made in a wall of a body of the burner defining an air-distribution chamber. According to the invention, the jets are connected to a series of tubes for supplying fuel gas or a gas/air mixture, these tubes passing through the body of the burner in order to be connected on the outside to a distribution housing provided with gas or with a gas/air mixture, this housing comprising adjustment means for selectively supplying the tubes joined to the jets.

Abstract: Gas injection pipe for a sequential burner in gas variable-power boilers. An array of gas injectors which are located on the injection pipe may each be plugged by a corresponding valve which is mounted on the free end of a rigid blade transversely extending through an internal chamber of the injection pipe. A rotating shaft which is stepwise driven is provided at right angles to each blade with recesses which are angularly offset on the shaft. Each blade is provided with a stud which is located in a corresponding recess when the latter is in its upward position. The stud lifts up the blade when the shaft is rotated on purpose to open the valve.

Abstract: A hybrid burner has a main burner operable with premixing combustion and an auxiliary burner operable with premixing and/or diffusion combustion alone or operable to furnish a pilot light for the main burner. A fitting connects at least one hybrid burner to a main supply apparatus and an auxiliary supply apparatus. The fitting includes a change-over element. A main feed line communicates between the change-over element and the main supply apparatus, an auxiliary feed line communicates between the change-over element and the auxiliary supply apparatus, a main tie line communicates between the change-over element and the main burner and an auxiliary tie line communicates between the change-over element and the auxiliary burner. The change-over element is operable in at least one first and at least one second switching state. In the first switching state the main feed line communicates with the main tie line and the auxiliary feed line communicates with the auxiliary tie line.

Abstract: An oven fueling system providing a chamber for food products exposed to at least one assembly of ribbon burners for heating the chamber atmosphere. An air heater is provided for transmitting pre-heated air through a conduit to a mixer aspirator leading to the header of the assembly. An oil line connects with the conduit upstream of the aspirator mixer for supplying oil to be injected into the preheated air passing through and a gas line communicates with the conduit for supplying gas to the conduit selectively with the oil line supply. Valves thus isolate both the oil line and the gas line selectively. Additionally a sensor is provided for sensing the temperature of the assembly and a control is provided for preventing the valve at the gas line from opening until a predetermined burner assembly temperature is reached. The valve for the oil line is prevented from being opened until the temperature of the chamber is such that the oil will vaporize satisfactorily.

Abstract: A burner block valve assembly for supplying oil and steam selectively to a main burner or stand-by burner when the main burner is being repaired or replaced includes a valve plug rotatably disposed in the valve body and rotatable between a main burner ignition position, an intermediate joint burner ignition position and a stand-by burner ignition position wherein steam and oil are routed from supply lines to the burners through two levels of passages, the valve plug including a first chordal slot adapted to route oil to the first level from an oil supply line directly to the main burner in the main burner ignition position, jointly to the main burner and the stand-by burner in the joint burner ignition position, and directly to the stand-by burner in the stand-by burner ignition position, the valve plug further including a second chordal slot adapted to route steam to the second level from a steam supply line directly to the main burner in the main burner ignition position, jointly to steam supply to both bur

Abstract: A valve combination for flame photometers particularly for a rapid and secure switching over from one to another fuel gas comprises a switching valve and a subsequent safety valve which either obstructs or lets pass a fuel gas emitted therefrom. Both valves are contained in a housing at a considerably short distance. Each of said valves has at least two entrance openings and one exit opening for the fuel gas.The exit opening of the switching valve is at the same time the entrance opening of the safety valve, the latter opening being closely located relative to the exit opening of the safety valve.