Reward Candy Dispenser for Personal Computers
A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
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| Number | Title | Issue Date |
| 7628610 | Conical cyclonic oxidizing burner A method and device for improved efficiency in thermal oxidation is presented which uses a cyclonic flame to combust a stream of hydrocarbons drawn to the flame source by a pressure differential. The improved burner and method are particularly suited for combusting ... | 12/08/2009 |
| 7479008 | Burner apparatus A burner apparatus for an indoor or outdoor fireplace, fire pit, stove or oven is shown. The burner apparatus operates to produce natural gas fueled or liquid petroleum fueled amber flames among artificial logs, coals or a combination of artificial logs and coals, s... | 01/20/2009 |
| 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 |
| 7347086 | System and method for burner-based accelerated aging of emissions control device, with engine cycle having cold start and warm up modes A method for accelerated aging of an automotive catalytic converter under conditions incorporating cold start simulations. ... | 03/25/2008 |
| 7277801 | Method for testing catalytic converter durability The present application relates in general to methods for testing the performance of an automotive catalytic converter under conditions simulating those which occur in motor vehicles over extended driving conditions. ... | 10/02/2007 |
| 7117676 | Apparatus for mixing fluids A premixer for a combustor to entrain a selected volume of fuel in an oxidizer to be combusted to heat the oxidizer. The combustor is for a gas powered turbine which employs the hypergolic or high energy air stream which will allow a fuel to be combusted in the abse... | 10/10/2006 |
| 7101173 | Plug sealing device that is not welded to the chamber wall The invention provides a combustion chamber comprising a chamber wall disposed radially inside a casing, an igniter plug for igniting the air-fuel mixture, the plug being mounted on said casing and comprising a body with a free end that is disposed in an opening for... | 09/05/2006 |
| 7093439 | Heat shield panels for use in a combustor for a gas turbine engine The present invention relates to heat shield panels or liners to be used in combustors for gas turbine engines. The heat shield panels each comprise a hot side and a cold side and at least one isolated cooling chamber on the cold side. Each cooling chamber has a plu... | 08/22/2006 |
| 7021222 | Coal-burning boiler's ignition burner The present application disclosed an ignition and burning apparatus used in a coal boiler, comprising a pulverized coal burner and one or more combustion-enhancing miniature oil guns inserted in the pulverized coal burner, wherein the miniature oil gun comprises a f... | 04/04/2006 |
| 7000396 | Concentric fixed dilution and variable bypass air injection for a combustor A combustor for a gas turbine includes a combustor body having an aperture and a casing enclosing the combustor body and defining a passageway therebetween for carrying compressor discharge air. There is at least one injection tube for supplying an amount of the com... | 02/21/2006 |
| 6984124 | High temperature rise makeup air unit A direct-air, gas-fired air makeup heating unit is disclosed which provides reduced nitrogen dioxide emissions with a higher temperature rise. The unit includes a combustion chamber with a protective chamber downstream of the combustion chamber. At high firing inten... | 01/10/2006 |
| 6951097 | Fluid distributor, burner apparatus, gas turbine engine and co-generation system Disclosed is a burner apparatus comprising an inner tube defining a second channel and an outer tube defining a first channel surrounding the inner tube, air supplying means for supplying air to the first channel and the second channel, and gas supplying means for s... | 10/04/2005 |
| 6939130 | High-heat transfer low-NOcombustion system A combustion apparatus comprising a pre-combustor stage and a primary combustion stage, the pre-combustor stage having two co-axial cylinders, one for oxidant and one for fuel gas, in which the fuel gas is preheated and the primary combustion stage having rectangula... | 09/06/2005 |
| 6920836 | Regeneratively cooled synthesis gas generator A coolant liner for a carbonaceous fuel (coal or petcoke) gasification vessel including a ceramic composite panel and a method of cooling a vessel. The panel includes at least two layers of woven yarns of fibrous material and walls extending between the layers. Acco... | 07/26/2005 |
| 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 |
| 6880549 | Combustion system for a heater A combustion system for a portable forced air heater having two frusta-conical sections attached to a circular burner tube, wherein each frusta-conical section has pre-determined vent hole patterns that allow the gas heater to have a variable burn rate. ... | 04/19/2005 |
| 6840761 | Ultra-stable flare pilot and methods A continuously operating ultra-stable flare pilot for igniting a flammable fluid discharged from the open end of a flare stack and methods are provided. The flare pilot basically comprises a fuel-air mixture inlet conduit, a fuel-air mixture discharge nozzle attache... | 01/11/2005 |
| 6702572 | Ultra-stable flare pilot and methods A continuously operating ultra-stable flare pilot for igniting a flammable fluid discharged from the open end of a flare stack and methods are provided. The flare pilot basically comprises a fuel-air mixture inlet conduit, a fuel-air mixture discharge noz... | 03/09/2004 |
| 6681760 | Direct-fired heater A combustion system for a portable forced air heater having two frusta-conical sections attached to a circular burner tube, wherein each frusta-conical section has pre-determined vent hole patterns that allow the gas heater to have a variable burn rate.... | 01/27/2004 |
| 6623267 | Industrial burner An industrial burner assembly comprising a manifold with a fuel inlet and a longitudinal axis, and a plurality of elongated burners positioned radially about the longitudinal axis having fuel ports in communication with the manifold and fuel inlet, wherei... | 09/23/2003 |
| 6499993 | External dilution air tuning for dry low NOX combustors and methods therefor A combustor having a combustion liner and at least one combustor orifice assembly, the combustor orifice assembly comprising a boss, an orifice plate that defines an orifice, the orifice plate having a bottom surface that is adapted to be received by the ... | 12/31/2002 |
| 6394795 | Air heating burner An air heating burner having improved CO emissions across a broad range of heat inputs. The burner incorporates wings which cover portions of mixing plates associated with low to medium-low fire. The wings reduce air flow velocity to eliminate quenching d... | 05/28/2002 |
| 6331110 | External dilution air tuning for dry low NOx combustors and methods therefor Dilution sleeves are provided in radially aligned openings in the combustion liner and flow sleeve of a combustor for a gas turbine. The sleeves have a flange for seating on a collar of the flow sleeve about the opening therethrough enabling the dilution ... | 12/18/2001 |
| 6093018 | Gas burner An improved gas burner comprising in combination means for controlled feeding and subsequent admixing of a secondary air directly to the base of the flame in a form of a cap coaxially surrounding a burner head of the gas burner comprising a lateral apertu... | 07/25/2000 |
| 6089855 | Low NOx multistage combustor A high efficiency, Vortex Inertial Staged Air (VIStA) combustor provides ultra-low NOX production of about 20 ppmvd or less with CO emissions of less than 50 ppmvd, both at 3% O2. Prompt NOX production is reduced by partia... | 07/18/2000 |
| 6085515 | Heat shield configuration, particularly for structural parts of gas turbine plants A heat shield configuration, particularly for protecting supporting structures and structural parts of gas turbine plants against a hot fluid. The heat shield has an inner lining which consists of a heat-resistant material and which is composed of plate-s... | 07/11/2000 |
| 5993197 | Combustion chamber of a burner for a vehicle heater or an exhaust gas particle filter A combustion chamber of a burner for a vehicle heater or for thermal regeneration of an exhaust gas particle filter having a frontal boundary wall, a circumferential boundary wall, a connector for fitting a glow plug and a connector for conveying combusti... | 11/30/1999 |
| 5927960 | Burner A burner arrangement for ferrous scrap melting and the like includes a fuel outlet and a primary oxidant supply outlet communicating with a mixing chamber. The burner also has a main outlet and secondary oxidant supply outlets. In addition there is a conv... | 07/27/1999 |
| 5921770 | Burner for operating a combustion chamber with a liquid and/or gaseous fuel In a burner for operating a combustion chamber with a liquid and/or gaseous fuel (12, 16), the combustion air (7) required for this purpose is directed through tangential air-inlet ducts (5, 6) into an interior space of the burner. This directing of the f... | 07/13/1999 |
| 5738509 | Premix burner having axial or radial air inflow In a premix burner (18) having axial or radial air inflow, in which premix burner (18) the combustion air (15) flows out of a plenum (27), arranged before or around the burner (18), into the burner (18) and fuel (12, 13) is mixed with it on the way throug... | 04/14/1998 |
| 5687572 | Thin wall combustor with backside impingement cooling A combustor for a gas turbine engine having a porous outer metallic shell and a thin-walled, nonporous ceramic liner whose backside is impingement cooled, with only primary and secondary openings in the ceramic liner for delivering pressurized primary air... | 11/18/1997 |
| 5649820 | Flare burner A flare burner comprises a stack conduit, a plurality of gas distributing conduit extending radially from the stack conduit, and a plurality of gas supersonic gas nozzles connected to the gas distributing conduit. The stack conduit supplies flare gas to e... | 07/22/1997 |
| 5649529 | Low NOx combustion system for fuel-fired heating appliances A fuel-fired, forced air, draft induced heating furnace is provided with NOx reduction apparatus associated with a plurality of combustor tubes forming a portion of its heat exchanger structure. In-shot type fuel burners are spaced apart from and face the... | 07/22/1997 |
| 5647739 | Nozzle for use in a burner A nozzle adapted for use in a high excess air burner. The nozzle includes three combustion chambers and an outer flame retention ring for supporting combustion of gaseous fuel over a range of volumetric flow rates. Combustion air is staged to each of the ... | 07/15/1997 |
| 5647202 | Cooled wall part In a cooled wall part having a plurality of separate convectively cooled longitudinally cooling ducts (2) running near the inner wall (1) and parallel thereto, adjacent longitudinal cooling ducts (2) being connected to one another in each case via interme... | 07/15/1997 |
| 5545035 | Ignition device with an air fan An ignition device including a housing, which is formed of an upper shell, a bottom shell, and a partition plate longitudinally connected between the upper shell and the bottom shell; a gas release device mounted within the housing and controlled to relea... | 08/13/1996 |
| 5516282 | Burner tube and space heater employing the tube A pressurized space heater for burning gaseous fuel has as its main component a generally conical burner tube that receives at its narrow end a combustible mixture of fuel and primary air. Complete combustion in the tube is enhanced by two sets of holes d... | 05/14/1996 |
| 5476378 | Turbine device for hot air generation The pressure head needed to drive combustion air into the combustion region (46) of a heat gun (930) is imparted to the air by a compressor blades (36) driven by a turbine whose blades (32) are interposed in the fuel conduit that leads to the combustion r... | 12/19/1995 |
| 5423674 | Firing installation A firing installation includes a combustion space fed by premixing burners having combustion air inlet slots along the length of the burner bodies that create a tangentially directed inflow of combustion air. Fresh air guides are positioned along the inle... | 06/13/1995 |
| 5395235 | Catalytic preburner This invention relates to the use of a catalytic preburner for heating the pair from compressor discharge temperatures to above the light-off or extinction temperatures of a catalytic combustor. Such structures of this type, generally, eliminate the diffu... | 03/07/1995 |