Abstract: A grout cleaning hand tool includes a grout cleaning head assembly with a removable brush subassembly. An elongate handle extends upwardly from the grout cleaning head assembly and is held by an operator in a standing posture. The elongate handle includes a handle rod held by a first hand of the operator, and an auxiliary T-grip handle held by a second hand of the operator. The brush subassembly includes a long narrow bundle of bristles secured to a base, slidably mounted to a channel of the grout cleaning head assembly. The handle rod and the T-grip handle provide ergonomic positions for the operator to exert downward compression forces on the grout cleaning head assembly to facilitate cleaning grout lines in tiled floors. The brush subassembly may include a brush handle for detail-work grout cleaning while holding the brush subassembly close to the floor when removed from the head assembly.

Abstract: Gas burner for domestic use, of the type comprising at least one Venturi effect mixer in fluid connection with at least one combustion mixture distribution chamber and with at least one flame spreader associated with said distribution chamber, in addition to first means for preventing flame propagation of the fluid flow splitting type. Advantageously, the above-mentioned first preventing means is arranged downstream of the Venturi effect mixer and upstream of the combustion mixture distribution chamber, separating said Venturi effect mixer from the distribution chamber.

Abstract: A self-cleaning burner system incorporates an automatic clean cycle when the burner is started up. Cycles may be programmed for once-a-day cleaning cycle or for other desired interval. On start-up, the cycle routes a small amount of fuel to the burner for ignition inside the burner to clean the burner surfaces. The system incorporates an igniter for fast, routine, and safe ignition of the fuel. Thus, small amounts of debris that accumulate on a surface burner are automatically ignited when the burner is started, keeping the burner clean and operating at a high state of efficiency at all times. The self-cleaning burner system may be incorporated into a fryer or other heating appliance for reliable, efficient operation.

Abstract: A device for cleaning contamination in heat exchangers, waste-heat boilers, or combustion chambers is provided. In some embodiments, the device comprises a tube, a blasting body, and a combustible gas mixture within the tube. In some embodiments, the tube is destroyed after blasting. In some embodiments, the device further comprises a second tube comprising a blasting cord that is connected to a fuse, wherein the second tube is coupled to the first tube by a hinge.

Abstract: The inventive multi-level furnace comprises a furnace wall delimiting a cylindrical space having a vertical axis, a plurality of beds defining the levels inside said cylindrical space and at least one scraping arm which is provided with a wall scraper and associated with the bed in such a way that it is rotatable about the vertical axis of the furnace. During scraping arm rotation, said wall scraper defines a scraped area on the internal surface of the furnace wall which comprises a plurality of wall cavities forming a row of access openings in the scraped area, thereby making it possible to avoid the formation of a hardened crust adhered to the internal surface of the furnace wall and to develop braking shocks in the scraping arm.

Abstract: Illumination assemblies include a substrate having a first and second electrically conductive layer separated by an electrically insulating layer. The insulating layer includes a polymer material loaded with thermally conductive particles. At least a portion of the thermally conductive particles simultaneously contact both the first and second electrically conductive layers. A plurality of light sources such as LEDs or other miniature light sources are preferably disposed on the first conductive layer.

Abstract: In a procedure for regulating a combustion process in an installation while air is being supplied, material is converted by the combustion process, with at least one flame being formed, and the state variables (s(t)) describing the state of the system in the installation are determined using at least one observation device that images the flame, as well as other sensors, and are evaluated in a computer, whereupon any appropriate actions (ai) that may be needed are selected in order to control adjusting devices for the supply of material and/or air, wherein during setpoint regulation to achieve setpoints (s0) of the state variables and/or stability of the combustion process a changeover is occasionally made from setpoint control to disturbance control.

Abstract: A burning appliance having a burner assembly including a burner for providing combustion is disclosed. The appliance includes a fuel tip for supplying fuel to the burner assembly and a fuel control and cleaning assembly cooperating with the fuel tip to permit control of fuel supplied to the burner and cleaning of the fuel tip while the appliance is in operation. The cleaning assembly may be formed on the appliance itself and may incorporate a cleaning element, a cleaning element control mechanism and a heat dissipating interface positioned with respect to the cleaning element and the cleaning element control mechanism such that a user may control the cleaning element with the cleaning element control mechanism without the use of gloves or other protective equipment while the appliance is in operation.

Abstract: In a monitoring device (11) in the wall (3) of a furnace (1), particularly for capturing the image of an incineration process in the furnace (1), having an inner end (I), an outer end (E), at least one housing (13, 17), and an monitoring element (25) arranged inside the housing (13, 17), extending at least between the inner end (I) and the outer end (E), the monitoring device (11) is provided with a scraper unit (31) that keeps the inner end (I) of the monitoring element (25) free from deposits occurring on the wall (3).

Abstract: A waste gas treatment system having a burner part and a combustion chamber provided at a downstream side of the burner part. Combustion flames are formed from the burner part toward the combustion chamber, and a waste gas is introduced into the combustion flames, thereby oxidatively decomposing the waste gas. The combustion chamber is formed from an inner wall made of a fiber-reinforced ceramic material. Therefore, the wear of the inner wall due to heat and corrosion is minimized, and thermal stress cracking is also reduced. Consequently, the lifetime of the system increases, and the cost of equipment and the availability factor can be improved. In addition, because the inner wall exhibits no catalytic effect, the formation of thermal NOx is suppressed, and it is possible to achieve environmental preservation and to simplify the treatment equipment.

Abstract: A process for preparing finely divided silica by reaction of gaseous or vaporizable silicon compounds in a mixture with gases forming water on combustion with air or oxygen in a flame includes producing discharges of gas in the combustion chamber by means of at least one gas gun. The apparatus for carrying out this process has applied to the outside of the combustion chamber wall at least one gas gun which produces a discharge of gas via an opening in the combustion chamber wall, preferably in conjunction with a nozzle on the inside of the combustion chamber wall.

Abstract: A mechanical wiper mounted within an incinerator for waste gases, such as silane, and said wiper adapted to move adjacent selected internal surface areas to remove combustion products buildup on such selected areas.

Abstract: A device for oxidizing gaseous materials, comprising a combustion chamber, wherein the device and the combustion chamber both have a top and a bottom, the device further having a gas outlet and being adapted to operate in conjunction with means applying negative pressure to the outlet, means for introducing process gas and a source of fuel into the top of the combustion chamber, means for effecting heat exchange between oxygen-containing gas and the combustion chamber to preheat the oxygen-containing gas, means for introducing the preheated gas into the top of the combustion chamber, means for mixing the preheated gas with the process gas and fuel so that the mixture can burn in the combustion chamber to form an exhaust gas, means for permitting the gas to exit from the bottom of the combustion chamber, means for diluting the exhaust with air to form a flue gas, and means for directing the flue gas from the bottom of the combustion chamber out of the outlet of the device.

Abstract: A method for the combustion of liquid fuels in the gaseous state comprising the steps of evaporating fuel in a gasification chamber and burning the gasified fuel after it leaves the gasification chamber with a controlled amount of air. This is controlled by the pressure in the gasification chamber in such a way that the correct stoichiometric relationship between fuel and air is not altered by factors such as temperature and viscosity of the liquid fuel. The invention includes the apparatus used to carry out the process, and, particularly, means (37) to adjust air supply control means (25) according to the pressure in the gasification chamber (21).

Abstract: A gasified liquid fuel burner having a combustion chamber in the form of a cylinder closed at the bottom, a hollow fuel gasifying member of a substantially conical shape located in the combustion chamber for rotation and having an open end formed therein with an obliquely outwardly turned portion, an air blast supply duct inserted in the fuel gasifying member, a fuel supply line for supplying a liquid fuel to the inner surface of the fuel gasifying member, a gas chamber formed in the combustion chamber in a manner to be juxtaposed against the open end of the fuel gasifying member to define a gasified fuel-air mixture ejection opening between the gas chamber and the obliquely outwardly turned portion of the fuel gasifying member, and a cylindrical gasified fuel-air mixing member provided in the gas chamber and spaced apart a small distance from the open end of the fuel gasifying member.