Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7293532 | Heavy oil extraction system An efficient high-temperature water vapor generator is used to heat heavy oil located in an underground cavity, thereby reducing the viscosity of the oil and enabling the oil to be pumped to the surface. The vapor generator includes a combustion chamber and a surrou... | 11/13/2007 |
| 7249946 | Thermal generator and combustion method for limiting nitrogen oxides emissions by re-combustion of fumes The invention relates to a thermal generator comprising a furnace tube (2) wherein a fuel is burnt, recombustion means (14, 15) for reducing the nitrogen oxides content present in said fumes and means (3) for recovering the heat of the fumes res... | 07/31/2007 |
| 7025927 | Hot air blowing type fluidized-bed furnace, rotary heat-treatment furnace, heat-treatment apparatus, and method of heat treatment A heat-treatment apparatus including a first furnace for heat treatment and solution treatment of a work piece, and a second furnace for heat treatment and aging treatment of a work piece, wherein each furnace includes a dispersion tube cantilevered and immersed wit... | 04/11/2006 |
| 6997118 | Pulse gasification and hot gas cleanup apparatus and process A gasifier system and process comprises a pulse combustion device in communication with a fluid channel for producing a gas stream having heat or fuel value. The pulse combustion device is operated under sub-stoichiometric conditions such that combustion and steam r... | 02/14/2006 |
| 6938561 | Device for producing a rotating flow A device for producing a rotating flow in a rectangular flow duct which has a flue-gas outlet of an incineration plant, in particular of a garbage incineration plant, and a transition region from a combustion chamber of the incineration plant to the flue-gas outlet.... | 09/06/2005 |
| 6939125 | Method for reducing nitrogen oxides in combustion gas from combustion furnace A method for reducing NOx, in a combustion gas which is discharged from a combustion furnace for burning a fuel by means of a gas containing oxygen in an amount of at least 80 vol % and which contains oxygen, which method comprises adding a combustible ma... | 09/06/2005 |
| 6907994 | Process for converting wet fly ash into dry useful industrial products There is provided a process for converting wet fly ash into a useful product such as cement replacement or industrial filler. A first amount of wet fly ash is provided. The wet fly ash is fed into a mixing chamber. An amount of aggregate, such as stone, is provided.... | 06/21/2005 |
| 6907402 | Commodity trading system A method for buying commodities comprising identifying suppliers of commodities having surplus capacities; entering into take or pay supply agreements for a plurality of commodities with one or more of said suppliers, each of said supply agreements specifying a cost... | 06/14/2005 |
| 6691628 | Method and apparatus for thermal processing of powder raw materials In the manufacture of cement clinker from cement raw meal, sulfide-containing raw materials or raw materials with a high TOC (total organic carbon) level can be used for cement manufacture, which are uncontrollably incompletely burned in the upper cyclone... | 02/17/2004 |
| 6485296 | Variable moisture biomass gasification heating system and method A sloping fuel grate allows primary air to flow up into a thick biomass fuel bed in a gasifier producing combustible gases. Fuel feed screws keep the fuel bed at a nearly constant height in response to a level indicator. A burner above the fuel bed admits... | 11/26/2002 |
| 6450800 | Regenerative thermal oxidizer incorporating a venturi style burner A burner that utilizes venturi action for induction of combustion air. The action of the venturi draws in surrounding air present around the nozzle to supply the necessary combustion air, provide forward moment to the burning gases to distribute their hea... | 09/17/2002 |
| 6418864 | Incineration process and incinerator using heat generated from combustion to bake and sublimate waste to produce gases using as fuel for the burning An incineration process and an incinerator using heat generated from combustion to bake and sublimate waste to produce gas as for burning waste is designed to use heat generated from the gas as burning chamber in the baking process and to allow waste to e... | 07/16/2002 |
| 6363868 | Combustors and burners with high turndown ratio Various smoke and combustible gas combustors (200, 300) are disclosed, and also disclosed are systems (100, 200) combining gas combustor with inventive burner. Such a burner (100 or 100') provides combustion of a particulate fuel such as sawdust, and many... | 04/02/2002 |
| 6274097 | Apparatus for cleaning pollutant-laden waste gas An apparatus for cleaning pollutant-laden waste gas by regenerative thermal afterburning has two towers (1, 2) each divided into three heat-retaining chambers (14 to 16 and 17 to 19) by vertical partitions (10 to 13). Two opposite heat-retaining chambers ... | 08/14/2001 |
| 6260492 | Method and apparatus for burning fuel in the free board of a pressurized fluidized bed with solids recirculation A method of combustion in a pressurized, fluidized bed and in the freeboard thereof. The combustion method is further characterized by the recirculation of solid sulfur absorbing materials. A gas channel, designed so as to prevent fluidizing gas from ente... | 07/17/2001 |
| 6258336 | Method and apparatus for NOx reduction in flue gases In a furnace having a primary combustion zone for combustion of a fuel and oxidant, an in-furnace method for reducing nitrogen oxides in combustion products generated in the primary combustion zone in which at least one fluid fuel selected from the group ... | 07/10/2001 |
| 6220013 | Multi-pressure reheat combined cycle with multiple reheaters A multi-pressure reheat combined cycle configuration in which the HP steam turbine exhaust temperature is colder than the HP steam saturation temperature and the coldest section of the reheater is placed downstream of the high pressure evaporation section... | 04/24/2001 |
| 6216610 | 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... | 04/17/2001 |
| 6138586 | Method and device for incineration of exhaust gases A method for incineration and an incinerator for composition of exhaust gases containing organic substances, the incinerator comprising an elongated, preferably cylindrical combustion chamber, an oil or gas fired burner with a flame-tube axially centrally... | 10/31/2000 |
| 6116168 | Method of gasifying waste material A gasifier is disclosed. The gasifier comprises a primary chamber for receiving therein biomass waste material and other related volatile solids to be gasified. A fume transfer vent permits the escape of fumes from the primary chamber. A mixing chamber ac... | 09/12/2000 |
| 6105514 | Water-cooled cremating platform A water-cooled cremating platform for use in a cremating stove includes a metallic upper plate, a metallic main body and a metallic side plate. The upper plate is removably positioned on an open upper side of the main body for holding a dead body to be cr... | 08/22/2000 |
| 6086828 | Heat exchanger efficiency control by differential temperature A regenerative thermal oxidizer (H-101) includes a number of heat exchange columns (A, B) topped by a combustion chamber (C-101). Contaminated air is directed into one of the columns and oxidation is completed as the flow passes through the combustion cha... | 07/11/2000 |
| 6065469 | Emission control system for asphalt kettle An emission control system for an asphalt kettle combines a number of features to increase efficiency and convenience of operation, while minimizing potential safety hazards. The asphalt kettle is connected via a duct to a separate afterburner device equi... | 05/23/2000 |
| 6021723 | Hazardous waste treatment method and apparatus A method and apparatus for heat treating of hazardous waste by heating the waste in a pyrolyzing chamber and forming an off-gas, heating the off-gas for a sufficient time to destroy dioxins and furans, then reducing and cooling the off-gas in a secondary ... | 02/08/2000 |
| 5957065 | Cremators A cremator comprises a primary combustion chamber for receiving through a charge door thereof a coffin or other object to be cremated and being provided with a first burner, a secondary combustion chamber (e.g. in the form of a tube of thermally conductiv... | 09/28/1999 |
| 5915310 | Apparatus and method for NOx reduction by selective injection of natural gas jets in flue gas A method of reducing NOx determines an NOx concentration profile within a zone of the furnace which is at a temperature below 2600° F. A stream of fluid fuel is injected into at least one region of relatively high NOx con... | 06/29/1999 |
| 5908003 | Nitrogen oxide reduction by gaseous fuel injection in low temperature, overall fuel-lean flue gas A process and apparatus for combustion of a solid carbonaceous material, for example coal, in which a mixture of the solid carbonaceous material and combustion air is injected into a combustion chamber and ignited, thereby forming a fuel-lean primary comb... | 06/01/1999 |
| 5901653 | Apparatus including a two stage vortex chamber for burning waste material A low-pollutant system for waste materials treatment includes a process chamber for converting organic components of the waste materials into a flammable gas and a two-stage vortex burning chamber for complete combustion of the flammable gas. The vortex b... | 05/11/1999 |
| 5865130 | Self-cleaning thermal oxidizer An apparatus for self cleaning a thermal oxidizer that is thermally treating and decontaminating gases is disclosed. The apparatus for self cleaning the thermal oxidizer can clean the accumulated dust out from inside the thermal oxidizer without requiring... | 02/02/1999 |
| 5851256 | Method for reducing NOx emissions from a regenerative glass furnace A method of operating a regenerative glass furnace for melting glass for the manufacture of shaped glass articles so as to minimize emission of NOx in waste gases leaving the furnace, the furnace having sealed regenerators which act as heat exchangers, th... | 12/22/1998 |
| 5849059 | Method for reducing NOx emissions from a regenerative glass furnace A method of operating a cross-fired regenerative glass furnace for melting flat glass so as to minimize emission of NOx in waste gases leaving the furnace, the furnace having sealed regenerators which act as heat exchangers, the method including supplying... | 12/15/1998 |
| 5837028 | Method for reducing CO emissions from a regenerative glass furnace A method of operating a cross-fired regenerative glass furnace for melting flat glass so as to minimize emission of NOx in waste gases leaving the furnace, the furnace having sealed regenerators which act as heat exchangers, the method including supplying... | 11/17/1998 |
| 5832844 | System for recycling used oil filters A recycling system processes used oil filters on a continuous basis by shredding the oil filters and then incinerating the shreds in a rotary kiln. The shreds are fed into the upper end of an inclined rotating drum kiln. The shreds of combustible material... | 11/10/1998 |
| 5823124 | Method and system to reduced NOx and fuel emissions from a furnace A system of this invention reduces the emission of NOx and fuel pollutants from a furnace. The system includes a furnace with a chamber for combusting air, oxygen and fuel flows in an approximately stoichiometric proportion. A reburn unit, that... | 10/20/1998 |
| 5820651 | Method for reducing CO emissions from a regenerative glass furnace A method of operating a regenerative glass furnace for melting glass for the manufacture of shaped glass articles so as to minimize emission of NOx in waste gases leaving the furnace, the furnace having sealed regenerators which act as heat exchangers, th... | 10/13/1998 |
| 5770162 | Horizontal regenerative thermal oxidizer unit A regenerative thermal oxidizer unit comprising two heat regenerator units in which a gas to be purified from VOCs passes through the units in an essentially horizontal direction.... | 06/23/1998 |
| 5741130 | Method and apparatus for minimizing disruption caused by depositions on a supply means for a combustion of gasification plant A method and apparatus for minimizing disturbances caused by depositions on a feeding apparatus for a combustion or gasification plant. Secondary air is fed via perforated tubes 13 which by affecting the emission levels of the process with longer or short... | 04/21/1998 |
| 5727481 | Portable armored incinerator for dangerous substances A mobile incinerator suitable for burning explosive material, has armored walls capable of withstanding internal explosions, a primary combustion chamber within which initial burning of the material to be incinerated takes place, a secondary combustion ch... | 03/17/1998 |
| 5711232 | Heater means for stirling engines A Stirling engine has an external combustion chamber for burning a kerosene and transferring a high temperature therein to working fluid in heater tubes. In the case of the present invention, the external combustion chamber is connected to a furnace for b... | 01/27/1998 |
| 5678494 | Biomass-fueled furnace A biomass-fueled furnace for residential or institutional space and hot water heating. Wood chips, the preferred fuel, are purchased "green and/or wet" and are stored in a dryer/storage assembly which uses waste clean exhaust gases produced by the furnace... | 10/21/1997 |