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...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7311049 | Air and water conveyor/cooler for hot loose materials The present invention regards a conveyor/cooler for hot loose materials produced by boilers and various industrial processes, mainly comprising a sealed metal container (1) connected to a boiler (2) or to an incinerator from which, thanks to the gravit... | 12/25/2007 |
| 7234196 | Tool for removing particles from reticle A tool and a process for removing particles from a reticle are described. The tool is disposed in front of a pellicle particle detector, including at least a gas spray member toward a surface of the reticle for removing particles and a supporting member supporting t... | 06/26/2007 |
| 7040240 | Ash fusing system, method of operating the system, and gasification fusing system for waste An ash melting system of the present invention includes a slagging combustion furnace (10) for melting ash into molten slag; and a slag separating apparatus (50) for bringing the molten slag (121) discharged from the slagging combustion furnace ... | 05/09/2006 |
| 6988453 | Outlets for a pyrolytic waste treatment system The inventive subject matter is directed toward a pyrolytic waste treatment system comprising an outlet adapted to channel a composition out of a pyrolysis chamber. A mechanism is used for cleaning the outlet during operation of the pyrolytic system. ... | 01/24/2006 |
| 5954000 | Fluid bed ash cooler Apparatus for cooling ash exiting from circulating fluidized bed equipment includes an enclosure having a floor, a plurality of walls disposed around the floor and a ceiling. The enclosure also has an inlet and an outlet. The outlet is disposed in one of ... | 09/21/1999 |
| 5799595 | Wet ash remover installation A wet ash remover installation includes a first wet ash remover (5) which is placed in operating position under an ash funnel (2) of a boiler and a second, similar, movable wet ash remover (12) placed in reserve position. The wet ash removers (5, 12) resp... | 09/01/1998 |
| 5715762 | Coal ash disposal system A truck is parked adjacent a coal boiler ash recovery unit and includes a first inlet pipe provided to receive ash from the recovery unit and an outlet pipe provided to convey dust from within the storage chamber of the truck to a bag house where the dust... | 02/10/1998 |
| 5671687 | Incinerator having a fully automatic feeder An incinerator comprises a feeding plate, a first combustion chamber, a second combustion chamber, a curved duct, an air exhausting device, a water screen device, and a water tank. The feeding plate is provided on the underside thereof with a vibrating de... | 09/30/1997 |
| 5647287 | Ash clinker ramming apparatus An apparatus mounted to an enclosure housing of a water entrained ash hopper for dislodging ash pluggages across an ash discharge opening in the ash hopper to maintain passage of ash from the ash hopper. The apparatus comprising a plate rotatably and seal... | 07/15/1997 |
| 5630853 | Coal slagging gasifier A coal slagging gasifier has a gasifying vessel over a quenching chamber partly filled with water below the surface of which a wall of a cylindrical, metal shield dips. The gasifying vessel has a hearth including a slag tap having a slag outlet with a low... | 05/20/1997 |
| 5595482 | Airlocking system and method for feeding bulk granular material A control measuring and supply apparatus and method for receiving a substantially, continuous flow of fluent material from a source of supply; the assembly having a bottom-sealed diverter plate, optionally positionable to direct the fluent material, by gr... | 01/21/1997 |
| 5564347 | Ash clinker ramming apparatus An apparatus mounted to an enclosure housing of a water entrained ash hopper for dislodging ash pluggages across an ash discharge opening in the ash hopper to maintain passage of ash from the ash hopper. The apparatus comprising a plate rotatably and seal... | 10/15/1996 |
| 5517950 | System for slag removal and the like A cleaning system comprises a compressor for delivering pressurized air to an accumulator via a valve controlled line. An outlet line extends from the accumulator and terminates adjacent a furnace floor drain. Upon command the entire volume of pressurized... | 05/21/1996 |
| 5464592 | Gasifier throat A gasifier for partially combusting a carbonaceous fuel mixture in the combustion chamber of the gasifier. The latter includes a water bath into which the hot effluent or products of combustion are immersed, including a synthetic gas. The products of comb... | 11/07/1995 |
| 5435257 | Apparatus for introducing gas recirculation into a furnace Apparatus for cooperation with an associated furnace having the capability of burning either coal or oil wherein the improvement includes a coutant having an opening in the bottom thereof. An extended ash hopper is disposed under the coutant. The hopper i... | 07/25/1995 |
| 5355844 | System for slag removal and the like A cleaning system comprises a compressor for delivering pressurized air to an accumulator via a valve controlled line. An outlet line extends from the accumulator and terminates adjacent a furnace floor drain. Upon command the entire volume of pressurized... | 10/18/1994 |
| 5320050 | Ash melting furnace An ash melting furnace for heating and melting ashes by a burner. The furnace body is formed with a preheating chamber and a melting chamber. Of the bottom wall of the melting chamber (12), the portion closer to the charging port is convex in transverse c... | 06/14/1994 |
| 5309848 | Reversible, wear-resistant ash screw cooler section A reversible, wear-resistant ash screw cooler section is provided with a carbon steel inner liner having a high chrome, high carbide overlay emplaced thereon to improve its wear and erosion resistance. To facilitate obtaining the maximum wear out of the s... | 05/10/1994 |
| 5288195 | Incinerator ash dumping container A dumping container for collecting, transporting and dumping primarily ashes removed from an incinerator. A pair of pivoted fore and aft frame members, of hollow box like crossection engage the tines of a manual cable operated hoist. The cable hoist provi... | 02/22/1994 |
| 5288227 | Method for cooling ceramics, especially ceramic tiles produced in roller kilns, and the relative plant The method involves passing the ceramics through water, by means of immersion and/or in jets, and/or sprayed, and/or nebulized, and/or in the form of steam. The plant includes a cooling booth (CR) which may be divided into one or more stations: with spray... | 02/22/1994 |
| 5269235 | Three stage combustion apparatus A process for disposing of a waste chemical stream containing materials which can produce objectionable combustion products, such as NOx, free bromine, carbon, particulates or ash, the process comprising the steps of passing the waste chemical ... | 12/14/1993 |
| 5188043 | Process and apparatus for incinerating waste The incinerator comprises a furnace (1) having a waste charging zone (2), an air insufflation intake (5), a smoke release outlet (8) and a discharge zone (10) for ash and unburnt material. The discharge zone (6) for ash and unburnt material communicates w... | 02/23/1993 |
| 5183478 | Process for dewatering quenched slag Quenched slag discharged from a gasification process such as a coal gasification process can be continually dewatered and removed without disrupting operations by alternately discharging the quenched slag from means such as lockhoppers and directing the s... | 02/02/1993 |
| 5161470 | Process for the water-saving ecologic collection, transport and deposition of slag and flyash from coal-fired thermal power stations with the simultaneous utilization of physical and chemical properties A process is described for a water efficient, ecologically acceptable collection, delivery and depositing of slag and flyash from thermal power plants fired with pulverized coal. Slag is allowed to fall into a cooling water basin, conveyed to a condenser ... | 11/10/1992 |
| 5146856 | Power plan with a screw conveyor ash cooler In a power plant, for example of PFBC type, with a cooler for cooling of ashes originating in a fluidized bed, the cooler comprises a cylinder with a transport screw which transports the ashes through the cylinder. The transport screw has a tubular shaft ... | 09/15/1992 |
| 5138957 | Hot gas generation system for producing combustible gases for a burner from particulate solid organic biomass material A bottom-feed, biomass material gasification system feeds fuel such as green and wet woodchips from below up through a central opening in a stationary, perforate fire table which supports the mound-like fuel bed which is formed. A plurality of ring-like a... | 08/18/1992 |
| 5086714 | Vibratory hearth A hearth for use in a thermal processor or incinerator includes a substantially planar grate which is inclined upwardly and which is vibrated in such a way that material deposited on the input end of the grate moves upwardly toward the output end thereof.... | 02/11/1992 |
| 5082572 | Ash vibration process and apparatus An apparatus and method for dewatering combined ash or other combustion related products. The apparatus aspects of the invention consist of a quench bath having a curved portion containing a plunger adapted to push combustion materials contained in the qu... | 01/21/1992 |
| 5078065 | Incinerating-fusing system for city refuse disposal An incinerating-fusing system for city refuse is disclosed. The system includes an incinerating furnace for incinerating city refuse, a fusing furnace for fusing ash from the incinerating furnace at a high-temperature hearth formed of carbon type combusti... | 01/07/1992 |
| 5050512 | Combustion chamber and process for combusting at least partially combustible substances A combustion chamber for combusting a substance includes a burner and at least three successively disposed parts including a primary chamber, a secondary chamber and an ash discharge chamber. The burner is associated with and conducts a first air flow to ... | 09/24/1991 |
| 5046435 | Process and apparatus for combustion of waste, such as household and other waste, and afterburning of residues from the combustion This invention describes a process and apparatus for the combustion of wastes, wherein the wastes are combusted in a combustion chamber and the temperature of the combustion chamber is controlled by changing the amount of combustion air as a function of t... | 09/10/1991 |
| 5042399 | Hearth arrangement for melting furnace A hearth arrangement for a furnace which melts refuses carried on the hearth arrangement comprises a plurality of hearth blocks arranged like a stair. The heart blocks are inclined stepwise in a refuse carrying direction and each hearth block has a width ... | 08/27/1991 |
| 5027719 | Rotary grate for a solid fuel furnace The present invention discloses a rotary grate for a solid fuel fired furnace which allows ash, cinders and clinkers to be removed from the burning fuel mass, without reducing or stopping the combustion process. A plurality of parallel water cooled rolls ... | 07/02/1991 |
| 4976206 | Mechanism for the removal of slag in incineration plants A mechanism for the removal of incombustible residues from an incineration plant includes a slag shaft, a slag tank positioned under a mouth of the slag shaft and filled with water extending up to the mouth of the shaft. The incombustible residues droppin... | 12/11/1990 |
| 4961389 | Slag processing system for direct coal-fired gas turbines Direct coal-fired gas turbine systems and methods for their operation are provided by this invention. The gas turbine system includes a primary zone for burning coal in the presence of compressed air to produce hot combustion gases and debris, such as mol... | 10/09/1990 |
| 4960056 | Slag processing system for direct coal-fired gas turbines Direct coal-fired gas turbine systems and methods for their operation are provided by this invention. The systems include a primary combustion compartment coupled to an impact separator for removing molten slag from hot combustion gases. Quenching means a... | 10/02/1990 |
| 4884515 | Furnance hearth ashbox with extractor chamber that is easy to unjam An ashbox for the hearth of a furnace adapted to burn solid fuel, descending along in inclined grate as it burns. The ashbox comprises an extractor chamber having a concave bottom which is part-cylindrical with horizontal generatrices. This chamber is nor... | 12/05/1989 |
| 4860669 | Energy efficient continuous flow ash lockhoper A continuous flow ash lockhopper includes an ash hopper at the outlet of a high temperature, high pressure reactor vessel containing heated high pressure gas, a fluidics control chamber having an input port connected to the ash hopper's output port and an... | 08/29/1989 |
| 4808197 | Quench ring for a gasifier A gasifier for producing a usable gas by combusting a particulated carbonaceous fuel in a combustion chamber which is communicated to a cooling zone. A dip tube conducts an effluent flow of gas and slag to the bath by way of an upright guide passage. A se... | 02/28/1989 |
| 4798150 | Apparatus for handling ash Apparatus for handling ash. A tank is filled with water and has the lower end thereof located at a substantial angle from horizontal. The tank is positioned beneath an incinerator to receive ash therefrom. An ash wheel having sectors defined by upright pa... | 01/17/1989 |
