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| Number | Title | Issue Date |
| 7252858 | System and method for abating the simultaneous flow of silane and arsine A system and method for abating a simultaneous flow of silane and arsine contained in an exhaust gas of DRAM processing chamber (12). The system includes a CVD abatement apparatus (20) and a resin-type absorber (22). The CVD abatement apparatus ... | 08/07/2007 |
| 7219610 | Grate plate arrangement for step plates A grate plate arrangement for step grates includes box-like grate plates (4) positioned on a grate carrier (2) with a front plate (24) placed on its end wall (18) and fastened to the end wall (18) using one or more studs (26... | 05/22/2007 |
| 6990930 | Steam generation apparatus and method In one aspect, the invention provides a steam generation apparatus that is liquid fuel fired and addresses conversion of gaseous fuel SIB units to operate with liquid fuel. The invention also relates to a conversion unit for a steam injection boiler, a method for co... | 01/31/2006 |
| 6971336 | Super low NO, high efficiency, compact firetube boiler A firetube boiler furnace having two combustion sections and an in-line intermediate tubular heat transfer section between the two combustion sections and integral to the pressure vessel. This design provides a staged oxidant combustion apparatus with separate in-li... | 12/06/2005 |
| 6945320 | Tubular heat exchanger with offset interior dimples A tubular heat exchanger has at least one pair of dimples which are extruded into at least one tube of the heat exchanger by deforming the tube wall inwardly. The dimples of each pair are in generally facing relationship, but are offset with respect to each other al... | 09/20/2005 |
| 6926206 | Air heating device for integration into an air-conducting housing arrangement An air heating device for integration into an air-conducting housing arrangement, particularly a housing arrangement of a vehicle air conditioner, includes a burner region, a heat exchanger region with a heat exchanger body, wherein in the heat exchanger body a comb... | 08/09/2005 |
| 6591788 | Rooftop water heater A water heater adapted to be mounted on the rooftop of a building includes a substantially cylindrical tank having a horizontally-oriented longitudinal axis. A U-shaped flue tube has a burner end and an exhaust end, both ends being mounted in a head porti... | 07/15/2003 |
| 6564756 | Firetube boiler A boiler for generating steam and/or hot water is provided having a tank containing water, an outlet located proximal to the top of the tank, and a return inlet located proximal to the bottom of the tank. A substantially horizontal combustion conduit in h... | 05/20/2003 |
| 5913288 | Dual drum boiler A long-lasting hot water boiler. The boiler has a lower drum with a first pass fire-tube for generating combustion gases, an upper drum with a second pass fire-tube bundle for the gaseous products of combustion, and a lined fire reversing chamber for dire... | 06/22/1999 |
| 5429059 | Retrofitted coal-fired firetube boiler and method employed therewith A coal-fired firetube boiler and a method for converting a gas-fired firetube boiler to a coal-fired firetube boiler, the converted boiler including a plurality of combustion zones within the firetube and controlled stoichiometry within the combustion zon... | 07/04/1995 |
| 5161488 | System for purifying contaminated air A steam boiler (2) including a fire tube (21) and convection heating surfaces (22) is preceded by a combustion chamber (30) including a surface burner (34) for high excess air. The combustion chamber (30) and the fire tube (21) are internally thermally in... | 11/10/1992 |
| 5029557 | Cyclone combustion apparatus A cyclone combustion apparatus includes a combustion chamber having a substantially cylindrical wall, a substantially cylindrical exit throat at the rear end of the combustion chamber, means for supplying fuel into the combustion chamber at a front end th... | 07/09/1991 |
| 4989549 | Ultra-low NOx combustion apparatus A combustion apparatus for staged combustion inside the Morison tube of a firetube boiler for lowering the concentration of NOx in the exhaust gases. Combustion occurs in a first and second stage, the first stage being sub-stoichiometric combus... | 02/05/1991 |
| 4981112 | Potable hot water storage vessel and method of manufacture A potable, hot water storage vessel is shown with a metallic body having a water inlet, water outlet and at least one additional opening communicating the vessel interior and exterior. A flexible, non-molded liner is installed within the vessel interior t... | 01/01/1991 |
| 4920925 | Boiler with cyclonic combustion A boiler with a cyclonic combustor includes a first chamber which is substantially uncooled and refractory lined, a second chamber in fluid communication with the first chamber, ducts for supplying air and fuel directly into the first chamber and for form... | 05/01/1990 |
| 4875465 | High efficiency submersible chamber water heater A submersible chamber water heater having improved efficiency. The water heater includes a tubular member that is mounted in an opening in the tank and defines a combustion chamber. A fuel-air mixture is supplied to a burner located within the combustion ... | 10/24/1989 |
| 4860695 | Cyclone combustion apparatus A cyclone combustion apparatus includes a combustion chamber having a substantially cylindrical wall, a substantially cylindrical exit throat at the rear end of the combustion chamber, means for supplying partially preburned fuel into the combustion chamb... | 08/29/1989 |
| 4838210 | Pre-formed insulating reversing chamber for modified scotch boiler or the like A boiler having a first pass furnace and a set of second pass tubes, a reversing recess proximate to the furnace and tubes for reversing the flow of gases between the furnace and tubes, and a rear access door providing access to the recess, in which there... | 06/13/1989 |
| 4716843 | Waste fuel combustion system A system for utilizing a fuel having a high ash content, water content in excess of 50% and large particles of combustibles is shown which includes a holding tank for the fuel. Fuel is circulated in the holding tank to maintain the consistency of the fuel... | 01/05/1988 |
| 4714052 | Industrial gas operated liquid heater An industrial gas operated liquid heater is provided comprising a tubular hearth or furnace a front end face of which is provided with a gas burner and a heat exchanger in which the liquid to be heated and the combustion fumes flow concurrently, the excha... | 12/22/1987 |
| 4694894 | Heat exchangers A heat exchanger which includes a casing having an outer tube and an inner tube fixed therein. Holes are formed in the inner tubes and face a heat transfer surface of the outer tube. Hot exhaust gas may be passed from an inlet of the outer tube into the i... | 09/22/1987 |
| 4671213 | Structural improvement in the burning chamber of a horizontal boiler The present disclosure is related to a structural improvement in the burning chamber of a horizontal boiler, adopting a hollow flame-conducting element therein, which is attached with a pair of parallelly spirally fixed heat-convecting fins for either inc... | 06/09/1987 |
| 4651714 | High efficiency water heater A water heater having improved efficiency. The water heater includes a tubular member that is mounted in an opening in the side of the tank and extends horizontally across the lower portion of the tank. The tubular member defines a combustion chamber. An ... | 03/24/1987 |
| 4627388 | Combustion of halogenated hydrocarbons with heat recovery Halogenated hydrocarbon waste materials are burned in a horizontal fire tube boiler. In the disclosed and illustrated embodiments, liquid and/or gaseous waste of highly chlorinated hydrocarbons (often, very inert content) are input along with a flow of fu... | 12/09/1986 |
| 4590888 | Water heater A water heater having a burner unit and a combustion chamber from which the combustion gases are discharged and deflected into an annular out-flow space through which they flow along a heat exchanger to an exhaust outlet in the area of the burner unit. Th... | 05/27/1986 |
| 4488514 | Solid fuel boiler of the radiating furnace tube type, method for converting a boiler and means for carrying out said method The boiler comprises a primary furnace in which the combustion reactions are initiated, a secondary furnace extended by a radiating tube in which the combustion reactions are terminated, a heating surface disposed around the radiating tube and means for c... | 12/18/1984 |
| 4455968 | Boilers A shell boiler is disclosed having apparatus for feeding solid fuel to a furnace grate, contained within a furnace tube of the boiler, downwardly through the steam and/or water space of the boiler. The apparatus for feeding solid fuel to the furnace grate... | 06/26/1984 |
| 4421065 | Heating equipment for an installation using steam and heated gas Heating equipment for supplying steam and heated gas, including a combustion chamber from which come flue gases which flow through an enclosure, heating on the way at least one bundle of tubes in which water flows and gives off steam, and which further in... | 12/20/1983 |
| 4384549 | Boilers This invention relates to boilers more particularly to shell boilers and improvements in their operation. In more detail this specification describes and claims a boiler comprising a housing, an inlet for leading a fuel or a fuel/gas mixture into a combus... | 05/24/1983 |
| 4372255 | Five-smoke-flue type wet water box boiler The present invention relates to wet type water box boiler having five smoke-flues characterized by that the hot gas produced by the combustion is subject to twice of heat exchange with the water box in its route, thereby allowing an operating temperature... | 02/08/1983 |
| 4296711 | Heating boiler A heating boiler comprises separate furnaces for oil and solid fuel. The oil combustion chamber can be connected directly to flues in contact with water via an afterburning chamber (11) common to the two furnaces. The connection (22) between the oil-combu... | 10/27/1981 |
| 4296712 | Two-chamber boiler for burner firing and solid fuel firing A boiler provided with a burner chamber for a burner firing system and a combustion chamber for a solid fuel firing system, both chambers being arranged horizontally side by side in a common boiler water space enclosed by a horizontal outer boiler body. T... | 10/27/1981 |
| 4263878 | Boiler A boiler for heating liquid which combines a source of hot gases directed first along the inner wall of an annular tank in a tortuous path formed by fins disposed upon the inner wall and then along the outer wall of the tank through a jet-impingement heat... | 04/28/1981 |
| 4215655 | Crescent heat exchanger liquid heater This invention relates to a novel liquid heater and more particulary to a water heater having a crescent-shaped heat receiving heat exchanger and element therefor.... | 08/05/1980 |
| 4214627 | Fire tube for a heating boiler A fire tube for a heating boiler comprising two metal tube halves each having a base portion and two leg portions projecting at an angle from the base portion, the tube halves being disposed relative to one another such that the terminating ends of the le... | 07/29/1980 |
| 4206723 | Double-fired heating boiler A double-fired heating boiler includes first and second combustion chambers positioned within a common boiler water chamber and adapted to be fired respectively by gas or oil and by solid fuel. A collector for the combustion gases produced by the burning ... | 06/10/1980 |
| 4195596 | Combustion of halogenated hydrocarbons Halogenated hydrocarbon materials are burned in an internally-fired horizontal fire-tube boiler and the heat of combustion directly produces saturated steam. Halogen values may be recovered from the combustion gases, e.g., by being absorbed in water. Thus... | 04/01/1980 |
| 4192259 | Steel heating boiler for liquid or gaseous fuels A steel heating boiler for liquid or gaseous fuels, with a water-bearing housing, between the front and rear walls of which is arranged in a liquid-tight manner a cylindrical installation unit consisting of combustion chamber and fuel-gas flues. The steel... | 03/11/1980 |
| 4172431 | Industrial boilers An industrial boiler comprising a combustion chamber having a furnace therein, means for feeding products of combustion from the combustion chamber to a heat exchanger to heat water/stream therein, a pyrolytic retort, means to feed said products of combus... | 10/30/1979 |
| 4162686 | Industrial boiler utilizing multiple fuels and having reduced particulate emission and method of combustion A multi-fuel boiler is provided in which coal is burned in combination with oil or gas in such manner that the particulate emission from the coal, normally relatively high, is reduced to a level comparable to oil. In one example, coal of a quality that wo... | 07/31/1979 |
