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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7363923 | cooking range assembly and monolithic drip pan A cook top includes a one-piece drip pan beneath all burners for collecting spillage and drips originating at the burners. Burner assemblies having burners therein are located by and supported on the drip pan. Grates are provided above the burners and have chamfered... | 04/29/2008 |
| 7241340 | System configured for applying a modifying agent to a non-equidimensional substrate The present invention is related to systems and methods for modifying various non-equidimensional substrates with modifying agents. The system comprises a processing chamber configured for passing the non-equidimensional substrate therethrough, wherein the processin... | 07/10/2007 |
| 7150627 | Transported material heating with controlled atmosphere A tunnel oven for heating transported carbonaceous materials includes an enclosure having a passage and a transport device for moving solid carbonaceous materials through and along a length of the passage. A direct convection heater is operably connected to the encl... | 12/19/2006 |
| 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 |
| 6932003 | Mobile furnace and method of facilitating removal of material from workpieces A method for removing foreign material such as paints and coatings from workpieces using a mobile furnace. The workpieces are flash heated so that only the surface is heated to remove the coatings without heating the core of the workpieces. Deformation of the workpi... | 08/23/2005 |
| 6910431 | Burner-lance and combustion method for heating surfaces susceptible to oxidation or reduction A method of heating a surface susceptible to oxidation or reduction includes generating a central, generally cylindrical, fuel-rich particulate jet, and a coaxial, annular, supersonic velocity, oxidant-rich jet having an auto-thermal ignition temperature greater tha... | 06/28/2005 |
| 6638061 | Low NOx combustion method and apparatus Primary fuel and preheated oxidant are injected into a combustion zone to produce a flame with a predetermined adiabatic flame temperature. The preheated oxidant is injected at a target rate of oxidant injection. The primary fuel is injected at a first re... | 10/28/2003 |
| 6558155 | Process for adjusting the water vapor content in a very high temperature furnace Process for regulating the water vapor content in a furnace operating at very high temperature between 1300 and 1800° C. and heated by combustion burners, in which there used as combustible carbon monoxide and as combustion supporter oxygen or air if des... | 05/06/2003 |
| 6524650 | Substrate processing apparatus and method Substrate processing apparatus and method, by which an outside air and a gas-phase backward flow are restrained from entering the inside of a reaction chamber during the inside of a reaction chamber is opened to the outside through a substrate carrying-in... | 02/25/2003 |
| 6495092 | Combustion apparatus and melting furnace for nonferrous metals A combustion apparatus comprises a pair or more than two pairs of burner groups. Each burner group comprises one regenerator per a plurality of burners. In each pair of burner groups, a first burner group and a second burner group are fired alternately an... | 12/17/2002 |
| 6474982 | Burner and combustion method for heating surfaces susceptible to oxidation or reduction A method of heating a surface provides for a central fuel rich jet having a peripheral shroud of substantially stoichiometric combustion products and one or more fuel lean jets each having a peripheral shroud of substantially stoichiometric combustion pro... | 11/05/2002 |
| 6461154 | Method for burning carbonate-containing material In a method for burning carbonate-containing material the latter moves as a result of gravity in counter-current to the cooling and combustion air through a shaft kiln. The fuel supply takes place by means of burning lances introduced into the granular bu... | 10/08/2002 |
| 6454562 | Oxy-boost control in furnaces A process controls oxy-boost firing and air-fuel burner firing in furnaces, including large glass furnaces such as float furnaces. The large side-fired regenerative float furnaces use oxy-boost firing for a variety of reasons, including production increas... | 09/24/2002 |
| 6394796 | Curing oven combining methods of heating An oven having one or more independently adjusted radiant heaters that can be dynamically adjusted before and during a curing or heating process to account for the shape and size of an object being cured or heated, further comprising a means for dynamical... | 05/28/2002 |
| 6350118 | Combustion assembly for a furnace and method of use Combustion assembly adapted to be placed in a wall of a furnace including an axis having at least one pair of burners with axes, one oxidant lance arranged between the burners of the pair and having a lance axis and a source of oxidant connected to the bu... | 02/26/2002 |
| 6332340 | Process for manufacturing technical glass and burner for implementing such a process Provided is a process for the manufacture of technical glass. The process includes, heating a glass bath with at least one flame, wherein the at least one flame is a non-hard flame which is blue in color and includes substantially no reducing species.... | 12/25/2001 |
| 6250915 | Burner and combustion method for heating surfaces susceptible to oxidation or reduction A method of heating a surface provides for a central fuel rich jet having a peripheral shroud of substantially stoichiometric combustion products and one or more fuel lean jets each having a peripheral shroud of substantially stoichiometric combustion pro... | 06/26/2001 |
| 6203314 | Combustion assembly for a furnace and method of use Combustion assembly adapted to be placed in a wall of a furnace including an axis having at least one pair of burners with axes, one oxidant lance arranged between the burners of the pair and having a lance axis and a source of oxidant connected to the bu... | 03/20/2001 |
| 6113386 | Method and apparatus for uniformly heating a furnace A method and apparatus is disclosed for heating metal billets or other separate pieces of metal in a continuous furnace using two different burner systems. The primary burner system provides the majority of available heat at relatively high flame temperat... | 09/05/2000 |
| 6079229 | Process for improving the thermal profile of glass ovens In a process for manufacturing glass in a furnace a glass charge in solid form is introduced into a furnace-charging zone at an upstream part of a furnace. The glass charge is moved from the furnace-charging zone to a zone for removing the combustion smok... | 06/27/2000 |
| 5954498 | Oxidizing oxygen-fuel burner firing for reducing NOx emissions from high temperature furnaces Burner firing method and device are presented where an oxidizing oxygen-fuel burner is fired at an angle to the reducing air-fuel burner flame to reduce overall NOx emissions from high temperature furnaces. The oxidizing oxy-fuel burner stoichiometric equ... | 09/21/1999 |
| 5855639 | Process for the conversion of a glass furnace with the aid of a combustion with oxygen Provided is a process for the production of a loop-shaped flame in a glass furnace. The furnace includes, in a rear part, a glass melting zone heated by injecting through at least one port a fuel gas and an oxidizer gas having more than 50 vol % of oxygen... | 01/05/1999 |
| 5630714 | Process for controlling combustion of burners in furnace and an apparatus therefor A process for controlling combustion of burners arranged in a plurality of respective control zones divided in a furnace, includes the step of repeating a cycle of successively subjecting the burners to combustion for a short time. At least one temperatur... | 05/20/1997 |
| 5260041 | Method for the calcination of limestone A process for the continuous production of a calcined product containing a high level of reactive oxide valves, from a preheated raw material containing calcium carbonate values, said process comprising, (a) introducing the preheated raw material to the bottom... | 11/09/1993 |
| 5217366 | Process for heating a thermic enclosure and burner To heat a thermic enclosure, flames are generated in a burner having a plurality of injectors, from an oxy-combustible mixture, the flames extending in different directions and having different power and/or oxidizing reducing capacity. Application for exa... | 06/08/1993 |
| 5146694 | Vapor reflow type soldering apparatus A vapor reflow type soldering apparatus with an upper supply hole of vapor for heating the upper surface of an article to be processed, the position of which is displaced to the downstream side along a direction of delivery with respect to that of a lower... | 09/15/1992 |
| 5145361 | Burner and method for metallurgical heating and melting An object of this invention is to reduce the amount of substantially pure oxygen required during heating, refining and melting operations in metallurgical processes. In accordance with the invention, a burner (10) is provided in which air is aspirated and... | 09/08/1992 |
| 5052921 | Method and apparatus for reducing NOx emissions in industrial thermal processes Nitrous oxide emissions are reduced in an industrial thermal process and system which operates a gas fired burner at substantially sub-stoichiometric conditions to produce products of combustion rich in combustibles and control flame temperatures at tempe... | 10/01/1991 |
| 4971554 | Multi-nozzle surface mount rework system Apparatus for rapidly and precisely removing and replacing surface mount devices without disturbance to nearby devices on a printed circuitboard, the invention utilizes a multiple nozzle arrangement wherein nozzles arranged for reciprocating motion one ea... | 11/20/1990 |
| 4927357 | Method for gas lancing A gas-injection lance, burner, and method for use in a high temperature heating system which provides a non-axisymmetric flow of a reaction-rate enhancing gas in sufficient proximity to the flame of the system, which extends over the surface to be heated,... | 05/22/1990 |
| 4909733 | Method and apparatus for gas lancing A gas-injection lance, burner, and method for use in a high temperature heating system which provides a nonaxisymmetric flow of a reaction-rate enhancing gas in sufficient proximity to the flame of the system, which extends over the surface to be heated, ... | 03/20/1990 |
| 4787938 | Countercurrent drum mixer asphalt plant A drum mixer asphalt plant is provided with a rotatable cylinder 10 in which virgin aggregate, recycle material and liquid asphalt are mixed to produce an asphaltic composition and the hot gas stream for heating and drying the materials flow in countercur... | 11/29/1988 |
| 4746290 | Method and apparatus for treating waste containing organic contaminants A system including a method and apparatus for treating waste containing organic contaminants which includes a direct fired, countercurrent, rotary kiln providing a soaking zone having an oxidizing atmosphere through which the materials being treated are p... | 05/24/1988 |
| 4621583 | System for controlling a bark-fired boiler A system and process for controlling a boiler is disclosed. The system includes a television camera mounted above the reciprocable grate of the boiler to locate craters in solid fuel on the grate and an actuator to vary an operating parameter of the furna... | 11/11/1986 |
| 4557203 | Method of controlling a reclamation furnace This invention relates to an improved method of controlling temperatures within a cleaning or reclamation furnace which is normally used to reclaim metal parts contaminated with combustible materials by pyrolyzing the combustible materials. A reclamation ... | 12/10/1985 |
| 4526534 | Cantilever diffusion tube apparatus and method A cantilever diffusion tube apparatus includes a quartz cantilever tube having a support end clamped to a laterally movable carriage mechanism and an outer end portion containing a plurality of spaced semiconductor wafers. The cantilever tube is coaxially... | 07/02/1985 |
| 4504219 | Heating apparatus for circulatory-firing open baking furnaces and process for use of the apparatus The heating apparatus according to the invention concerns open circulatory-firing baking furnaces comprising an assembly of chambers which are heated by gases which circulate in hollow partitions (7, 19, 25) which divide the chambers into compartments. Th... | 03/12/1985 |
| 4488871 | Process for producing uneven coloring effects on firing plate-like ceramic material For producing uneven coloring on firing plate-like ceramic material such as tiles or flags in a kiln, more specially a roller kiln, made up of preheating, firing and cooling zones, and through whose oxidizing atmosphere in the firing zone the material to ... | 12/18/1984 |
| 4437835 | Method of and apparatus for measuring the rate at which gases are blown into a rotary kiln Gases are blown into the kiln through its shell by means of shell pipes or nozzle blocks. The rates at which gases actually enter the kiln are ascertained in that the pressure in each supply duct is pneumatically tapped at a constriction and is applied to... | 03/20/1984 |
| 4424023 | Method and apparatus for temperature control in heating furnaces A method is disclosed for temperature control in a heating furnace including a step of regulating the emissivity of the flame in the heating furnace. This regulation is accomplished by adjusting the soot content of the flame. The soot content is changed b... | 01/03/1984 |
