Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7232542 | Preheating cold blast air of a blast furnace for tempering the hot blast temperature An improved blast furnace system for producing molten iron incorporating a preheater to heat the cold blast air used to temper the hot blast temperature is disclosed. The improved blast furnace system comprises a blast furnace, a hot blast main for conveying a suppl... | 06/19/2007 |
| 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 |
| 7101175 | Anode tailgas oxidizer A combustor for oxidizing a combustion fuel and pre-heating one or more reactants for fuel reforming. The combustor includes an elongated housing having an inlet for receiving a combustion fuel and an outlet for exhausting combustion products. The elongated housing ... | 09/05/2006 |
| 7037409 | Method of hot-repairing the heating flues of a coke-oven battery and device for carrying out said method A method and a device for the hot-repairing of the heating flues of a coke-oven battery according to which the completed sections of a heating flue still under construction are heated by means of a heated gas. The heated gas comprises the air usually provided for co... | 05/02/2006 |
| 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 |
| 6972184 | Cell motility assay An electrooptical method is disclosed for quantifying the motility response of cells to external stimuli, wherein a target cell population (formed as a function of said response) is subsequently optically differentiated by the addition of an optical differentiation ... | 12/06/2005 |
| 6939769 | Method for manufacturing a semiconductor device with using double implanting boron and boron difluoride The present invention provides a method for manufacturing a semiconductor device capable of acquiring productivity when a p-type source/drain is formed by the implantation of a BF2 and B ions. The method for manufacturing a semiconductor device includes t... | 09/06/2005 |
| 6183243 | Method of using nuclear waste to produce heat and power A method of using nuclear waste material and exploiting heat generated by radioactive decay of said radioactive waste, comprising the steps of incorporating solid nuclear waste into glass, ceramic, or cementitious blocks, covering the blocks in heat absor... | 02/06/2001 |
| 5876197 | Method for heating a fuel-fired industrial furnace and regenerator/burner system therefor In order to create a regenerative, energy-saving fuel firing for an industrial furnace, particularly for a metal smelting furnace, that can flexibly take all possible time and space operating conditions and demands of the furnace to be heated as well as t... | 03/02/1999 |
| 5759022 | Method and system for reducing NOx and fuel emissions in a furnace In a method of this invention, a first oxidant flow including oxygen and/or air, is injected into an exhaust gas flow from a primary burn zone in a furnace combustion chamber. The first oxidant flow is injected into the exhaust gas flow in a secondary bur... | 06/02/1998 |
| 5225357 | Low P+ contact resistance formation by double implant The method of manufacture of a PMOS integrated circuit having a feature size in the order of one micron or less is done by providing, on a silicon substrate, a pattern of silicon gate electrodes over a gate dielectric. Implanting of BF2 + ions ... | 07/06/1993 |
| 5203859 | Oxygen-enriched combustion method A process and apparatus for oxygen-enriched combustion of a fuel in an industrial furnace in which a preheated primary oxidant from a heat exchanger and a fuel to be combusted are introduced into a combustion chamber and ignited, a secondary oxidant havin... | 04/20/1993 |
| 5044940 | Blast furnace air heater An air heating apparatus for air that is to be supplied to a blast furnace. The apparatus includes a number of separate air heater devices connected together in series flow relation so that the total temperature increase is the sum of the heating actions ... | 09/03/1991 |
| 5044939 | Reversing linear flow TPV process and apparatus A linear combustion emitter regenerator process capable of operating at high temperatures for sustained periods of time, that includes flowing reactants including fuel and air to a combustion zone; adding regenerated heat to at least one of the reactants ... | 09/03/1991 |
| 4877013 | Hot blast stove installation A hot blast stove installation for heating cold blast to form hot blast includes a plurality of hot blast stoves each alternately operable during a heating phase and a blowing phase, a cold blast main for supplying cold blast to respective of the stoves d... | 10/31/1989 |
| 4874311 | Method and apparatus for improved regenerative furnace A method and apparatus for improving the performance of a regenerative burner has a combustion chamber which receives and combusts controllable amounts of auxiliary fuel, an oxidizing gas, and possibly air to form hot combustion products. A controllable a... | 10/17/1989 |
| 4830093 | Method and apparatus for utilizing waste heat in a combustion system An improved method and apparatus for recovery of waste heat of the type having a first heat exchanger which transfers heat to a working fluid and a second heat exchanger which transfers heat from the working fluid is disclosed. The improvement comprises t... | 05/16/1989 |
| 4824364 | Non-ferrous metal smelting furnace A non-ferrous metal smelting furnace including a preheating tower includes a smelting chamber, provided below the preheating tower, a combustion chamber, provided adjacent to the preheating tower, a lower portion of which communicates with the smelting ch... | 04/25/1989 |
| 4666403 | Air preheating system for continuous fired furnace A system for preheating air being fed to a continuous fired furnace by means of high temperature waste gases exhausted from the furnace. The system includes two pairs of interconnected regenerators. The regenerators of one pair are alternately connected b... | 05/19/1987 |
| 4614496 | Cowper having no combustion shaft A cowper having no combustion shaft is presented wherein a combustion chamber is topped by a cupola and is positioned above the chequerwork. One or more burners are arranged symmetrically on the cupola wall, each burner being installed at a specific angle... | 09/30/1986 |
| 4582485 | Blast furnace stove The burner means for a blast furnace stove having a vertical shell, a combustion chamber adjacent the inside wall of the shell and checkers in the shell includes a generally horizontal first tube extending from the outside of the shell into communication ... | 04/15/1986 |
| 4540361 | Enhanced pneumatic regenerator flow control Pneumatic control of flow patterns in regenerators is improved by the use of flow amplifier nozzles.... | 09/10/1985 |
| 4516934 | Waste heat recovery from regenerative furnaces A system for recovering clean hot air from a regenerative, glass melting furnace. The furnace, which may be either a side-port or end-port furnace, is constructed in the conventional manner, but a passageway is provided which connects accross the top cham... | 05/14/1985 |
| 4507175 | Fractional distillation process and applications thereof to the production of thermal or mechanical energy from two low level heat sources A novel fractional distillation process and applications thereof to the production of thermal or mechanical energy from two low level heat sources wherein a mixture of two highly non-ideal reactive solutions such, for example, as of the water/ammonia type... | 03/26/1985 |
| 4496316 | Target wall air jet for controlling combustion air A method of and apparatus for selective control of combustion gas flow in a furnace firing port in a furnace of the type having a plurality of firing ports, each port having a passageway for receiving combustion gas, e.g. preheated air, from a common plen... | 01/29/1985 |
| 4496315 | Port wall air jet for controlling combustion air In a multiport combustion furnace having a plurality of firing ports in undivided communication with a common source of combustion gas or air, the invention provides a method and apparatus for selective control of combustion air flow into one or more of t... | 01/29/1985 |
| 4492567 | Method of removal of impure gases at the time of scrap preheating, and equipment for use of same A method and apparatus for preheating scrap metal within pure gases discharged from a metallurgical vessel. The method comprises the steps of burning the gases in a combustion chamber to remove impurities therefrom, conducting a first portion of the combu... | 01/08/1985 |
| 4492568 | Process and apparatus for preheating the combustion mediums used for firing blast furnace stoves Combustion air and fuel gas used for firing blast furnace stoves is preheated by utilizing the heat of waste gases resulting from such firing. The combustion air and fuel gas are passed through respective heat exchangers in heat exchange relationship with... | 01/08/1985 |
| 4478627 | Recuperation of heat absorbent media to preheat combustion gases and glass batch A method of recovering heat from furnace flue gas which comprises passing the hot gases into contact with high specific heat media and the media into contact successively, with combustion gases and glass batch.... | 10/23/1984 |
| 4460335 | System for preventing excess pressure in a gap between a double-shell structure of a blast heating apparatus A blast heating apparatus includes an inner metal shell and an outer metal shell defining therebetween a gap filled with at least one pourable dry material, for example a mixture of SiC and graphite. To prevent excess pressure in the gap and to prevent co... | 07/17/1984 |
| 4454053 | Additive for the water circulating in civil and industrial heating plants This invention is relevant to a method for saving fuel in heating plants which utilize thermal energy obtained through combustion of fuel in a boiler and in which the heat transfer medium is circulating water, said method consisting of mixing the circulat... | 06/12/1984 |
| 4452586 | Method of blast heating A method of and a device for blast heating is described, employing separate indirect heat exchangers for combustion air and fuel gas fed to a regenerator and flue gases discharged from the regenerator. The indirect heat exchangers share heat-transfer liqu... | 06/05/1984 |
| 4444555 | Method for reducing stress corrosion cracking in high-temperature regenerative air heaters Stress corrosion cracking which occurs in metallic portions of a high-temperature regenerative air heater can be alleviated by the disclosed methods. The methods include the step of storing a gas charge within a heated regenerative air heater, which gas c... | 04/24/1984 |
| 4435157 | Heat exchanger construction and method of operation A heat exchanger and especially a blast preheater (or cowper) for blast furnaces with refractory lining, insulating layer and steel jacket is described, the insulating layer of which is designed so that a steel jacket temperature of from 20° to 60° C. c... | 03/06/1984 |
| 4434004 | Method for recovery and recycling of heat from hot gases in metallurigical processing The present invention relates to a method and an apparatus for the recovery and recycling of heat from hot exhaust gases, specifically from exhaust gases in metallurgical processes and from warm gases having an exiting temperature of below about 800° C. ... | 02/28/1984 |
| 4394122 | Furnace regenerator with improved flow distribution A continuous regenerative tank-type glass melting furnace having a plurality of burner ports along each side in communication with a longitudinally extending plenum. Beneath and extending throughout the length of each plenum is a checkerbrick structure su... | 07/19/1983 |
| 4364727 | Heat treatment of foodstuff A method of heat treatment of foodstuff in which a stream of oxygen-containing gas and fuel is passed over one or more catalysts to raise the temperature of the gas stream and the resulting hot, gas stream is contacted with foodstuff in which a proportion... | 12/21/1982 |
| 4358305 | Method of and apparatus for analyzing atmosphere of a combustion chamber A hole through each of opposed walls of a combustion chamber of a glass melting apparatus and piping interconnect the chamber atmosphere to an oxygen analyzer. A sample of the chamber atmosphere is continuously moved through each of the holes and piping t... | 11/09/1982 |
| 4334861 | Method and apparatus for generating a hot air blast A system to supply high temperature blast air and a method for providing preheating of a cold air blast by gas-to-air heating in a tube-type heat exchanger with heat from waste products of combustion. Such combustion products are recovered in a header by ... | 06/15/1982 |
| 4322205 | Regenerative air heater A gas-cooled steel skirt is used to support a refractory cored brick matrix and dome structure in a high temperature regenerative air heater useful in magnetohydrodynamic power generation. The steel skirt thermally expands to accommodate the thermal expan... | 03/30/1982 |
