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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7476099 | Removable light-off port plug for use in burners An improved burner and a method for combusting fuel used in furnaces such as those found in steam cracking. The burner includes a burner tube having a downstream end and an upstream end, a burner tip adjacent a first opening in the furnace, so that combustion of the... | 01/13/2009 |
| 7425127 | Stagnation point reverse flow combustor A method for combusting a combustible fuel includes providing a vessel having an opening near a proximate end and a closed distal end defining a combustion chamber. A combustible reactants mixture is presented into the combustion chamber. The combustible reactants m... | 09/16/2008 |
| 7424804 | Premix burner A premix burner has a swirl generator and two perforated through flow elements are arranged at a defined distance from one another in the inflow region for the combustion air. The through flow elements are preferably arranged in such a way that substantially the ent... | 09/16/2008 |
| 7363756 | Method for combustion of a fuel In a method for the combustion of a fuel, a fuel or a premixed combustible mixture is introduced into a combustion space as a combustible fluid open jet. The velocity of the open jet is selected in such a way that it is impossible for a stable flame front to form, i... | 04/29/2008 |
| 7353655 | Method and apparatus for achieving power augmentation in gas turbine using wet compression A gas turbine unit as well as a method for operating a gas turbine with high-pressure turbine and a low-pressure turbine unit are disclosed. A very quick and at the same time easily controllable augmentation or reduction of the shaft power of the gas turbine unit ca... | 04/08/2008 |
| 7353656 | Method and apparatus for achieving power augmentation in gas turbines using wet compression A gas turbine unit and method of operation thereof are disclosed. A very quick and easily controllable augmentation or reduction of shaft power produced by the gas turbine unit, in particular of large gas turbine units exhibiting a pressure ratio larger than 15 bar,... | 04/08/2008 |
| 7353654 | Method and apparatus for achieving power augmentation in gas turbines using wet compression A gas turbine unit and method of operation thereof are disclosed. A very quick and easily controllable augmentation or reduction of shaft power produced by the gas turbine unit, in particular of large gas turbine units exhibiting a pressure ratio larger than 15 bar,... | 04/08/2008 |
| 7322818 | Method for adjusting pre-mix burners to reduce NOemissions A method for reducing NOx emissions from a furnace having multiple burners, each burner including at least one chamber for supplying a flow of combustion air and means to adjust the flow of air to the at least one chamber. The method includes the steps of... | 01/29/2008 |
| 7229483 | Generation of an ultra-superheated steam composition and gasification therewith A method for gasifying carbonaceous materials to fuel gases comprises the formation of an ultra-superheated steam (USS) composition substantially containing water vapor, carbon dioxide and highly reactive free radicals thereof, at a temperature of about 2400° F. (1... | 06/12/2007 |
| 7177535 | Apparatus for generating power and hybrid fuel vaporization system A hybrid fuel vaporization system and an apparatus for producing power from a source of liquid fuel. The hybrid fuel vaporizing system includes at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet end, the in... | 02/13/2007 |
| RE39425 | Oxygen-fuel burner with integral staged oxygen supply A burner assembly is provided for combining oxygen and fuel to produce a flame. The burner assembly includes a burner block formed to include a flame chamber having inlet and outlet openings, a bypass structure for conducting oxygen outside of the flame chamber to t... | 12/12/2006 |
| 7147461 | Partially-open fired heater cycle providing high thermal efficiencies and ultra-low emissions A partially open fired heater regenerative cycle, wherein the fired industrial type heater cycle's heat transfer fluid replaces the air predominant nitrogen heat transfer fluid employed in a conventional air/fuel combustion heater, is disclosed. The heater cycle's m... | 12/12/2006 |
| 7104787 | Apparatus for radiant tube exhaust gas entrainment A radiant tube burner system comprises a novel flue gas recirculating assembly for reducing nitrous oxides emissions. In the burner system, the combustion air conduit running to the radiant tube burner intersects the exhaust conduit at a location between the radiant... | 09/12/2006 |
| 7074033 | Partially-open fired heater cycle providing high thermal efficiencies and ultra-low emissions A partially open fired heater regenerative cycle wherein the fired industrial type heater cycle's heat transfer fluid replaces the air predominant nitrogen heat transfer fluid employed in a conventional air/fuel combustion heater. The heater cycle's method and appar... | 07/11/2006 |
| 7028622 | Apparatus for burning pulverized solid fuels with oxygen A burner assembly combines oxygen and fuel to produce a flame. The burner assembly includes an oxygen supply tube adapted to receive a stream of oxygen and a fuel supply tube arranged to extend through the oxygen tube to convey a stream of fluidized, pulverized, sol... | 04/18/2006 |
| 7028478 | Method and apparatus for the production of energy The invention provides processes and apparatuses for safely, rapidly, cost-effectively and efficiently producing a superheated steam. These processes and apparatuses involve the combustion of one or more fuels containing the element hydrogen, the element carbon or t... | 04/18/2006 |
| 7025587 | Burner with high capacity venturi An improved burner and a method for combusting fuel in burners used in furnaces, such as those used in steam cracking, are disclosed. The burner includes a burner tube having an upstream end, a downstream end and a venturi intermediate said upstream and downstream e... | 04/11/2006 |
| 6986658 | Burner employing steam injection Method and apparatus for use in burners of furnaces such as those used in steam cracking. The apparatus includes a burner tube having a downstream end and an upstream end for receiving fuel and air, flue gas or mixtures thereof. A burner tip is mounted on the downst... | 01/17/2006 |
| 6916172 | Burner apparatus A burner apparatus comprising housing defining a chamber and having an air inlet, a peripherally extending baffle disposed in the housing, a first peripherally extending flow passage being formed between the housing and the baffle, the first flow passage being in op... | 07/12/2005 |
| 6890171 | Apparatus for optimizing burner performance An improved burner and a method for combusting fuel in burners used in furnaces such as those found in steam cracking. The burner includes a burner tube having a downstream end and an upstream end for receiving fuel and air, flue gas or mixtures thereof, a fuel orif... | 05/10/2005 |
| 6887068 | Centering plate for burner A burner for use in furnaces such as in steam cracking. The burner includes a burner tube having a downstream end and an upstream end. A burner tip is mounted on the burner tube adjacent a first opening in the furnace, so that combustion of the fuel takes place down... | 05/03/2005 |
| 6881053 | Burner with high capacity venturi An improved burner and a method for combusting fuel in burners used in furnaces, such as those used in steam cracking, are disclosed. The burner includes a burner tube having an upstream end, a downstream end and a venturi intermediate said upstream and downstream e... | 04/19/2005 |
| 6877980 | Burner with low NOx emissions A burner for use in furnaces such as in steam cracking. The burner includes a primary air chamber; a burner tube having an upstream end, a downstream end and a venturi intermediate said upstream and downstream ends, said venturi including a throat portion having sub... | 04/12/2005 |
| 6875009 | Combustion method and apparatus for NOx reduction Combustion method and apparatus for NOx reduction and CO reduction which are capable of easily achieving super NOx reduction with the value of exhaust NOx under 10 ppm. The combustion method for NOx reduction by controllin... | 04/05/2005 |
| 6869277 | Burner employing cooled flue gas recirculation A method and apparatus for use in burners of furnaces such as those used in steam cracking. The apparatus includes a burner tube having a burner tip mounted on the downstream end of the burner tube adjacent to a first opening in the furnace, so that combustion of th... | 03/22/2005 |
| 6846175 | Burner employing flue-gas recirculation system A method and apparatus for reducing the temperature of the recirculated flue gas in a flue gas recirculation duct for burners in industrial furnaces such as those used in steam cracking. The apparatus includes a burner tube having a downstream end and an upstream en... | 01/25/2005 |
| 6820432 | Method of operating a heat recovery boiler The heat recovery boiler (1) is operated, at least temporarily, by feeding its combustion system with air (13) and with a stream (15) of flue gases (4) recycled to a level of at least 45%, typically between 50 and 65%, so as to allow the ... | 11/23/2004 |
| 6776609 | Apparatus and method of operation for burners that use flue gas recirculation (FGR) The present invention is a method and apparatus to improve the utilization of flow and power characteristics of a combustion air fan over the full range of burner operation. More specifically, it is an apparatus and a method of operation that uses a high flue-gas-to... | 08/17/2004 |
| 6773256 | Ultra low NOx burner for process heating An ultra low NOx burner for process heating is provided which includes a fluid based flame stabilizer which provides a fuel-lean flame at an equivalence ratio in the range of phi=0.05 to phi=0.3 and fuel staging lances surrounding the flame stabilizer in circular, f... | 08/10/2004 |
| 6768049 | Thermophotovoltaic electric power generating apparatus and power generating method thereof A thermophotovoltaic power generating apparatus that heats an emitter by a combustion gas produced by fuel and air, and converts light radiated from the emitter into electric power by using photoelectric conversion elements. An air pipe is disposed in an internal ho... | 07/27/2004 |
| 6705855 | Low-NOx burner and combustion method of low-NOx burner Provision of a low-NOx burner allowed to further reduce NOx only by structural design of the burner in comparison with prior art. The low-NOx burner comprises a main nozzle 13 for injecting a premixture formed by mixing fuel and an oxidizer, and a secondary f... | 03/16/2004 |
| 6702570 | Firing method for a heat consuming device utilizing oxy-fuel combustion A method of firing a heat consuming device such as a boiler or furnace in which an oxygen transport membrane is integrated with the device such that part of the permeated oxygen supports an initial combustion to heat the incoming air to the oxygen transpo... | 03/09/2004 |
| 6685462 | Apparatus for burning fuel with low NOx formation Improved apparatus for burning fuel with low NOx formation are provided. An apparatus of the invention for discharging a mixture of fuel gas and air into a furnace wherein the mixture is burned and flue gases having a low NOx content... | 02/03/2004 |
| 6685463 | Air and fuel staged burner A burner (10) for reducing NOx emissions where supply fuel (16) and supply air (20) are supplied to a combustion tunnel (52) at high and low velocities and secondary air (26) is supplied to a secondary combustion zone (60), wherein products of ... | 02/03/2004 |
| 6672863 | Burner with exhaust gas recirculation In a premixing burner (1) for a gas turbine or hot-gas generation for the combustion of liquid or gaseous fuel, in which fuel is mixed with combustion air (9a, 9b) in a burner interior (14), is fed to a combustion chamber (3) and is burnt in this combusti... | 01/06/2004 |
| 6652268 | Burner assembly A burner assembly including a housing having an air inlet and a burner end. An impeller that is mounted in the housing is in communication with the air inlet and adapted to direct air toward the burner end of the housing. The burner assembly also includes... | 11/25/2003 |
| 6626661 | Fuel ejector and method for reduced NOx emissions An improvement for an ejector having at least one discharge port effective for delivering a flow of fuel into a heating system such that flue gas in the heating system is entrained in the flow of fuel. The improvement comprises the ejector having an aerod... | 09/30/2003 |
| 6599118 | Method and system for reducing nitrogen oxides and carbon loss from carbonaceous fuel combustion flue emissions There is provided methods and systems for the reduction of nitrogen oxides and carbon loss from carbonaceous fuel combustion flue emissions. The preferred carbonaceous fuel is coal. The invention provides methods and systems comprising the use of coal as ... | 07/29/2003 |
| 6599119 | Apparatus and method to control emissions of nitrogen oxide A combustion apparatus which has a post combustion hot gas fan and a recirculation duct positioned down stream from the fan to reduce NOx emissions by returning a portion of the exhaust from the combustion zone back to the combustion zone. For example, in... | 07/29/2003 |
| 6558153 | Low pollution emission burner A combustion method and burner system are disclosed herein. The burner system comprises: a fuel manifold comprising a housing, the housing defining an interior area comprising a chamber. The burner system comprises a set of injectors for injecting a fuel ... | 05/06/2003 |
