Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7770528 | Solid fuel burner, solid fuel burner combustion method, combustion apparatus and combustion apparatus operation method A solid fuel burner and its combustion method suited for encouraging fuel ignition and avoiding slugging caused by combustion ash, wherein a gas of low oxygen concentration (exhaust combustion gas) is used as a carrier gas of such a low grade solid fuel as brown coa... | 08/10/2010 |
| 7341007 | Balancing damper An apparatus for use in a furnace system to facilitate efficient and complete combustion of coal streams in a carrier gas. The apparatus, capable of being positioned horizontally or vertically in the coal pipes between the grinding mills and the furnace burner, cont... | 03/11/2008 |
| 7262384 | Reaction vessel and method for synthesizing nanoparticles using cyclonic gas flow A reaction vessel and a method for efficiently producing and collecting nanoparticles in the reaction vessel using cyclonic gas flow. Gas is injected through an inlet tangentially positioned relative to the axis of the vessel to cause the gas to form an outer helica... | 08/28/2007 |
| 7225746 | Low NOx combustion Combustion of hydrocarbon liquids and solids is achieved with less formation of NOx by feeding a small amount of oxygen into the fuel stream. ... | 06/05/2007 |
| 7213522 | Solid fuel burner, solid fuel burner combustion method, combustion apparatus and combustion apparatus operation method A solid fuel burner and its combustion method suited for encouraging fuel ignition and avoiding slugging caused by combustion ash, wherein a gas of low oxygen concentration (exhaust combustion gas) is used as a carrier gas of such a low grade solid fuel as brown coa... | 05/08/2007 |
| 7198555 | Atomizer cooling by liquid circulation through atomizer tip holder An improved atomizer, in which the liquid to be sprayed is circulated around the nozzle tip to prevent degradation of the liquid in hot environments. The circulation is controlled by a valve, which permits the liquid to circulate even when no liquid is being sprayed... | 04/03/2007 |
| 7117675 | Cooling of liquid fuel components to eliminate coking A system for cooling at least one gas turbine liquid fuel component located in a high temperature environment to eliminate coking in the component is disclosed. The system includes a sleeve surrounding the liquid fuel component, a device for providing a current of c... | 10/10/2006 |
| 7080517 | Combustion method and apparatus A method comprising providing a combustion apparatus, introducing a fuel into the combustion apparatus, and introducing feed air into the combustion apparatus. The method further comprises using the combustion apparatus to cause at least some of the fuel and at leas... | 07/25/2006 |
| 7066728 | Process and apparatus for oxygen enrichment in fuel conveying gases An improved process for burning solid fuel particles in a combustion chamber and creating a flue gas is disclosed. The method comprises creating a fuel gas stream by mixing the solid fuel particles with a conveying gas, transporting the fuel gas stream through a fue... | 06/27/2006 |
| 7059256 | Combustion device The invention relates to an arrangement (1) for the combustion of granular, solid fuel, for example wood-flour pellets, chips and the like, comprising a preferably horizontal combustion chamber (16), a dispensing unit (3) for feeding the fuel in... | 06/13/2006 |
| 7047891 | Overfire air port and furnace system An Overfire Air (OFA) port design and method for use in a furnace system is disclosed. The OFA port design effectively reduces the amount of harmful pollutants emitted into the atmosphere upon discharge from an associated furnace. ... | 05/23/2006 |
| 7043921 | Tube cooled combustor An innovative cooling tube assembly is disclosed for use in cooling the liner of a combustor in a gas turbine engine. Each cooling tube has a serpentine shape that conforms to the contour of the liner as the tube extends from one end of the combustor to the other to... | 05/16/2006 |
| 7021223 | Method and apparatus for injecting gasification medium into particle-loaded gasification spaces Method and apparatus for injecting gasification medium into particle-loaded gasification spaces of fixed-bed, fluidized-bed or entrained-bed gasifiers by means of gasification-medium nozzles, wherein the supply portion the isorate of the gasification medium in the g... | 04/04/2006 |
| 6978726 | Combustion with reduced carbon in the ash Combustion of coal in which oxygen is injected into the coal as it emerges from burner produces ash having reduced amounts of carbon. ... | 12/27/2005 |
| 6968791 | Oxygen-enriched co-firing of secondary fuels in slagging cyclone combustors A method for operating a cyclone combustor having first and second burners in communication with a barrel includes: feeding a stream of a primary fuel and a primary oxidant having a first oxygen concentration into the first burner; feeding a stream of a secondary fu... | 11/29/2005 |
| 6953547 | Method and apparatus for feeding solid material and oxidizing gas into a suspension smelting furnace The invention relates to an apparatus for feeding finely divided solids, containing at least sulphidic metal concentrate, and oxygenous oxidizing gas into a suspension smelting furnace, said apparatus comprising elements for conducting solids and oxidizing gas into ... | 10/11/2005 |
| 6951454 | Dual fuel burner for a shortened flame and reduced pollutant emissions A dual fuel burner including an elongated supply pipe and a gas injector for a boiler furnace having a plurality of peripheral openings around a center opening. The peripheral openings are pitched radially away from the longitudinal axis of the gas injector and also... | 10/04/2005 |
| 6951456 | Microcombustor and combustion-based thermoelectric microgenerator A generally toroidal counterflow heat exchanger is the main element of a combustor that operates at a micro scale. The combustor includes a central combustion region with openings to a reactant gas channel and an exhaust gas channel. The reactant channel and exhaust... | 10/04/2005 |
| 6918255 | Cooling of liquid fuel components to eliminate coking A system for cooling at least one gas turbine liquid fuel component located in a high temperature environment to eliminate coking in the component is disclosed. The system includes a sleeve surrounding the liquid fuel component, a device for providing a current of c... | 07/19/2005 |
| 6910432 | Selective oxygen enrichment in slagging cyclone combustors A method for combusting a fuel in a cyclone combustor having a burner and a barrel includes: feeding a stream of the fuel into the barrel at the burner end of the barrel; feeding a stream(s) of a first oxidant (e.g., air) having a first oxygen concentration into the... | 06/28/2005 |
| 6862877 | Gas turbines A biomass fuel combustor for use in the pressurized combustion comprising of biomass fule particles to produce a pressurized exhaust gas, the combustor comprising: a cyclonic combustion chamber having a combustion region and first and second fuel inlets, the first i... | 03/08/2005 |
| 6790032 | Straight path carbon powder combustion machine A straight path carbon powder combustion machine uses carbon powders as fuel of the combustion machine. The carbon powders enter into the interior of an igniter from carbon powders inlets. Then the carbon powders further enter into a forced firing internal combustio... | 09/14/2004 |
| 6715432 | Solid fuel burner and method of combustion using solid fuel burner According to a burner of the present invention, a stable combustion is obtained in a wide range from a high-load operation condition to a low-load operation condition even in the case of low quality solid fuel such as brown coal. The amount of air supplied fr... | 04/06/2004 |
| 6474250 | Nozzle assembly for a pulverized coal burner A mixture of pulverized coal and primary air travels axially through a tubular nozzle body having an outlet end in and surrounded by axially flowing concentric streams of secondary and often tertiary air. In the nozzle body, the coal/air mixture flows thr... | 11/05/2002 |
| 6475267 | System and method for removing gas from a stream of a mixture of gas and particulate solids A system for removing gas from a stream of a mixture of gas and particulate solids. The system includes a separation vessel having an upstream end portion and a downstream cowl portion, the upstream end portion having an inlet for introducing the stream t... | 11/05/2002 |
| 6422160 | Apparatus for the combustion of vanadium-containing fuels Apparatus for the combustion of vanadium-containing fuels that makes use of the extremely high reactivity of the vanadium-containing fuels for combustion in a dust furnace. To avoid disadvantageous slag caking in a combustion area and in particular in the... | 07/23/2002 |
| 6401636 | Process and device for incineration of particulate solids A process for the incineration of particulate solids, especially biological waste matter with low caloric value, feeds the solids into a combustion chamber of a furnace together with a sub-stoichiometric amount of fresh air to control the rate of combusti... | 06/11/2002 |
| 6269755 | Burners with high turndown ratio Various burner configurations for combustion of a particulate fuel such as sawdust, and many types of varying moisture content biomass fuels such as poultry litter. The burners exhibit a high turndown ratio. the burners include a housing defining an uprig... | 08/07/2001 |
| 6220189 | Rotatable fluidized bed incinerator A rotatable fluidised bed incinerator comprises a rotatable combustion chamber, a means for rotating the combustion chamber, a means for introducing combustible material into the combustion chamber, and a means for introducing a gas into the combustion ch... | 04/24/2001 |
| 6202578 | Method and reactor for processing of fuels having a wide particle size distribution A method and reactor for processing fuels with a wide particle size distribution, particularly for flame combustion. The fuel is blown tangentially with the aid of an airflow into a swirl chamber containing a burning mass, thus creating a vortex, from the... | 03/20/2001 |
| 6199494 | Method of improving the performance of a cyclone furnace for difficult to burn materials, and improved cyclone furnace thereof The firing performance of a radial, scroll, or vortex cyclone furnace can be improved when firing difficult to burn materials having a relatively low heating value or a relatively high moisture content, such as sub-bituminous and lignite coals. This can b... | 03/13/2001 |
| 6196142 | Method and burner for introducing fuel to a kiln A method and apparatus for introducing solid, liquid or gaseous fuel into a burning zone of a rotary kiln for manufacturing cement clinker. Fuel is conducted through a duct or ducts and primary air is conducted through at least two annular ducts arranged ... | 03/06/2001 |
| 6167818 | Castable cyclone deflector A cyclone furnace includes a cylindrical shaped furnace chamber having an inlet end for the introduction of fuel-air and an outlet end defining a re-entrant throat member. A monolithic deflector cone and orifice member comprised of a castable ceramic refr... | 01/02/2001 |
| 6152054 | Method and system for the disposal of coal preparation plant waste coal through slurry co-firing in cyclone-fired boilers to effect a reduction in nitrogen oxide emissions A method and system for the use of waste coal fines to reduce nitrogen oxides emissions from a coal-fired cyclone boiler. A coal water slurry including waste coal fines is injected as a co-firing fuel into a cyclone barrel of the cyclone boiler to partial... | 11/28/2000 |
| 6148745 | Method for the combustion of vanadium-containing fuels Method for the combustion of vanadium-containing fuels that makes use of the extremely high reactivity of the vanadium-containing fuels for combustion in a dust furnace. To avoid disadvantageous slag caking in a combustion area and in particular in the vi... | 11/21/2000 |
| 6148743 | Air nozzle for a furnace An air nozzle for introducing secondary air into a furnace and including a housing provided with an inlet at one end thereof for receiving air and an outlet at the other end thereof for discharging the air. A damper is disposed in the housing in the path ... | 11/21/2000 |
| 6145454 | Tangentially-fired furnace having reduced NOx emissions A furnace of a pulverized coal firing boiler includes a coutant bottom and walls intersecting with the coutant bottom and extending generally vertically therefrom to enclose and define an interior combustion chamber. A first windbox disposed in a corner o... | 11/14/2000 |
| 6120281 | Combustion method utilizing tangential firing A combustion method in which a coal/primary air mixture is discharged from burners located in the corners of the furnace towards an imaginary circle disposed in the center of the furnace. Air is discharged from air nozzles also located in the corners of t... | 09/19/2000 |
| 6112676 | Pulverized coal burner A pulverized coal burner includes a pulverized coal nozzle for jetting a mixture of pulverized coal and primary air, a secondary air nozzle and a tertiary air nozzle, concentrically arranged around the outer periphery of the pulverized coal nozzle, and a ... | 09/05/2000 |
| 6082273 | Method for operating a corner burner for a tangential burner system and corner burner for performing the method In a method for operating a corner burner of a tangential burner system, at least a first air stream of coal dust and primary air is tangentially introduced to a imaginary horizontal circle in the combustion chamber of the tangential burner system via a n... | 07/04/2000 |
