...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 7328697 | Radiant tube heater assembly An indirect heater assembly (10) comprises a radiant tube heater (12) and a fan (14) for generating an air flow over the heater (12). In an preferred embodiment and in another aspect, the radiant tube heater (12) comprises a radian... | 02/12/2008 |
| 7320733 | Electron bombardment heating apparatus and temperature controlling apparatus and control method thereof An electron bombardment heating apparatus, in which thermions emitted from filaments 9 are accelerated and impinge upon a heating plate 2, so as to heat the heating plate 2, wherein a peripheral wall of a heated material supporting member 1 | 01/22/2008 |
| 7284709 | System and method for hydronic space heating with electrical power generation This invention provides a system and method for cogeneration of electric power and building heat that efficiently interfaces a liquid-cooled electric power generator with a multi-zone forced hot water (hydronic) space heating system. The system and method utilizes a... | 10/23/2007 |
| 7252503 | Wind-proof venturi tube A venturi tube has a configuration of baffles affixed thereto that serve to greatly reduce the susceptibility of a gas burning appliance to wind gusts. The baffles cooperate to force incoming primary combustion air through a circuitous route before introduction into... | 08/07/2007 |
| 7013886 | Plastic shell heater A plastic shell heater utilizing multiple deflectors and vents at the top of interior of a portable heater to direct the heat away from the surface of the heater. This dramatically lowers the temperature of the external surfaces of the heater and allows the use of p... | 03/21/2006 |
| 6939126 | Gas burner A gas burner (10) includes an internal cavity (20) for receiving a gas and air mixture and an external substantially cylindrical wall (16) surrounding the cavity (20). The wall (16) is provided with through holes (32) for al... | 09/06/2005 |
| 6932080 | Arrangement of burner and heat exchanger, and air-heating apparatus Arrangement of a burner (2) and a heat exchanger (1), the heat exchanger (1) including a plurality of heat exchange elements (3) interconnected to each other with intermediate gaps, the heat exchanger (1) being arranged with an inl... | 08/23/2005 |
| 6932079 | Radiant energy source systems, devices, and methods capturing, controlling, or recycling gas flows This document discusses, among other things, systems, devices, and methods that increase radiant energy output, such as by using the waste airflow of combusted gas and/or ambient airflow resulting from convection, or by reducing or avoiding cooling effects of such a... | 08/23/2005 |
| 6910477 | Wall mounted vented heater The invention relates to a gas fired vented heater preferably having a relatively thin profile adapted for mounting on or in a wall structure and having a heat radiant display surface with visible decorative refractory defining a rear wall of the combustion chamber.... | 06/28/2005 |
| 6896512 | Radiator element The present invention is a radiator element composed of a metal foam for use within a radiant burner. The radiator element is comprised of a homogenous network about a plurality of inter-connected cells thereby forming a gas-permeable metal foam. The homogeneous net... | 05/24/2005 |
| 6884065 | Gas fired portable unvented infrared heater A portable heater adapted for use in a recreational enclosure or temporary work enclosure includes a housing having an air inlet on the lower front face. A gas supply is partially enclosed by the housing which provides propane to the mouth of a burner venturi locate... | 04/26/2005 |
| 6761558 | Heating apparatus using thermal reaction of brown gas The present invention relates to a heating apparatus using thermal reaction of brown gas. After brown gas generated from a brown gas generator passes hexane liquid in a flame arrester, it is burnt in a brown gas burner located at a lower portion of a heating element... | 07/13/2004 |
| 6668818 | Safety guard for patio heater The present invention provides a dome guard for a dome cover having an inside surface, an outside surface and a rim. The dome guard includes a heat resistant grid, at least one standoff for holding the dome guard a first predetermined distance from the do... | 12/30/2003 |
| 6648635 | Gas-fired portable unvented infrared heater for recreational and commercial use A portable heater adapted for use in a recreational enclosure or temporary work enclosure includes a housing having an air inlet on the lower front face. A gas supply is partially enclosed by the housing which provides propane to the mouth of a burner ven... | 11/18/2003 |
| 6443725 | Apparatus for generating energy using cyclic combustion of brown gas An energy generating apparatus using the cyclic combustion of Brown gas is disclosed. The apparatus comprises a heat generating unit, an outer wall, a Brown gas generator, an open-shut valve and a burner. The heat generating unit is positioned on a base. ... | 09/03/2002 |
| 6368102 | High-temperature, non-catalytic, infrared heater A high-temperature, non-catalytic, infrared heater is formed within a housing having a bottom and at least one side lined with a refractory material. The burner includes a burner surface area and is positioned within the housing. A re-radiating surface is... | 04/09/2002 |
| 6340298 | Gas-fired portable unvented infrared heater for recreational and commercial use A portable heater adapted for use in a recreational enclosure or temporary work enclosure includes a housing having an air inlet on the lower front face. A gas supply is partially enclosed by the housing which provides propane to the mouth of a burner ven... | 01/22/2002 |
| 6325060 | Stack-equipped far infrared space heater A stack-equipped far infrared space heater capable of permitting a space of a relatively large volume through which hot air for fan forced space heating fails to carry well to be satisfactorily heated by far infrared rays. The space heater includes a comb... | 12/04/2001 |
| 6311687 | Heating furnace, especially with gas and/or oil firing The invention relates to a heating oven (1) in particular with a gas and/or oil firing system. The heating oven comprises a combustion chamber (2) surrounded by heat storage elements, wherein respective first heat storage elements (3, 4; 27) are arranged ... | 11/06/2001 |
| 6036474 | Gas burner for fireplace A gas burner for a fireplace. The burner comprises a burner housing having a grid of openings that are formed from heat resistant material. The housing has a first burner assembly and a second burner assembly arranged therein in a side-by-side relationshi... | 03/14/2000 |
| 5921769 | Catalytic burner The invention relates to a heating device (100) employing catalytic combustion of gas, especially of petroleum gases, comprising: a flat combustion enclosure (110) delimited by two parallel large plane walls (111, 112), at least one of which is a heater plate ... | 07/13/1999 |
| 5645043 | Radiant heater A radiant heater which burns LPG fuel is provided with an improved burner assembly and an improved support assembly for mounting the heater on a propane tank. The heater includes a frame, a reflector mounted on the frame, and a burner assembly which is re... | 07/08/1997 |
| 5634457 | Gas heating apparatus A gas heating apparatus comprises a duct constructed by a heat insulating material having a heat resisting property, a plurality of honeycombs disposed across in the duct so as to oppose to a direction of a gas flow in the duct, the honeycombs being forme... | 06/03/1997 |
| 5601073 | Flat pan gas burner for gas fireplaces A flat pan gas burner for a gas log fireplace system comprises a U-shaped pan formed in a sheet of metal. The U-shaped pan is provided with attachment flanges and a gas pipe attachment aperture through which is attached a gas pipe adapter. A burner plate ... | 02/11/1997 |
| 5549099 | Injection and regulation device for atmospheric gas burners for heating appliance, in particular of the infra-red type The invention concerns an injection and regulation device for burners for heating appliances equipped with a duct (4) for an air/gas mixture and comprising a Venturi element (5). According to the invention, the means of injection include at least two inje... | 08/27/1996 |
| 5546925 | Inshot fuel burner Nox reduction device with integral positioning support structure 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... | 08/20/1996 |
| 5544644 | Drying and ironing machine having a rotary cylinder equipped with an improved pipe burner Use is made in a drying and ironing machine having a rotary cylinder (10) of a pipe burner (18), which comprises a dense network of microperforations. Microflames mainly form in the microperforations and ensure a heating mainly in the infrared range. It i... | 08/13/1996 |
| 5483948 | Compact gas-fired infrared radiator of closed design A gas-fired infrared radiator comprising a closed housing which includes a combustion chamber, with a side of the radiator that is to be directed towards an object being a radiation plate which forms a boundary of the combustion chamber, and comprising at... | 01/16/1996 |
| 5400765 | Selective emissive cooking stove In a gas-fired stove or oven, gas is burned in a porous ceramic surface combustion burner which generates selective emissive radiation in a narrow band. The high temperature surface of the burner includes a narrow band quantum emitting substance such as r... | 03/28/1995 |
| 5253635 | Gas-fired heater A sealed combustion, low profile gas-fired baseboard heater has a heat exchanger which is U-shaped, and which has upper and lower horizontal sections. Appropriate inlets are provided for air and combustion gas, and a gas valve. The air inlet may be coaxia... | 10/19/1993 |
| 5239979 | Radiant heater An improved radiant heater for use in dusty environments and at low gas pressures. An open throat, single port burner, which is not subject to obstruction in dusty environments, directs combustion products vertically from a lower fuel input end to an uppe... | 08/31/1993 |
| 5190027 | Heat radiant device for gas grills A device for use in gas cooking grills having burner elements, and improved gas cooking grills incorporating the device, comprising a radiant member composed of a high heat reflective material having a circular cross-section mounted directly above each bu... | 03/02/1993 |
| 5174751 | Mobile infrared heater A mobile fossil fuel heating device allows almost any indoor or outdoor area to be heated with radiant heat. A radiant tube gas burning heater is mounted on a wheeled carriage for rotation about a horizontal axis so that the radiating face of the heater m... | 12/29/1992 |
| 5174744 | Industrial burner with low NOx and CO emissions A block-like curtain of reticulated ceramic foam is spaced forwardly of the burner nozzle of an industrial burner and, when heated by the flame of the burner, oxidizes unburned CO into CO2 to reduce the emissions of CO. By virtue of the curtain... | 12/29/1992 |
| 5127826 | Radiant tube A single ended radiant tube for furnace heating has four concentric tubes (10, 12, 14, 16). Fuel gas is fed through tube (16) and combustion air through the space between tubes (12, 14). Flame and combustion products flow first in the same direction as th... | 07/07/1992 |
| 5057007 | Low NOx atmospheric gas burner A low NOx atmospheric gas burner is provided, which includes at least one burner tube having a plurality of gas outlet orifices terminating in a burner bed, and a plurality of plates disposed above the burner tube within the reach of the flame,... | 10/15/1991 |
| 5058196 | Electric infrared heater having a gas permeable electroformed porous metallic panel coated with a porous ceramic far-infrared radiating layer An electric far-infrared heater has a plate-like porous metallic panel formed by an electroforming process installed in a box-like housing over an electric heating element therein. The panel is heated by the element and has its outer surface covered by a ... | 10/15/1991 |
| 5044353 | Liquid fuel combustion type infrared ray irradiating apparatus A liquid fuel combustion type infrared ray irradiating apparatus includes a base having a generally rectangular-shaped framework, each corner of which is provided with a wheel, a fuel tank fixed to the base, and a pump disposed on the base and adapted to ... | 09/03/1991 |
| 5032183 | Method of cleaning meat drippings from gas charcoal briquettes A gas grill briquette basket used to help reduce flame flare-up and unhealthy bacteria growth which can result from a build-up of grease drippings from meat onto briquettes. Briquette basket could be made of metal rods welded together forming a basket (ca... | 07/16/1991 |
| 4895137 | Baffle assembly for a heat exchanger tube A baffle assembly for a generally elongate heat exchanger tube of the type used in an atmospheric gas-fired heating appliance includes a perforated plate member formed in a V-shaped configuration and adapted to be secured within the heat exchanger tube in... | 01/23/1990 |