Quotables
"I think there is a world market for maybe five computers."
Thomas Watson, chairman of IBM ; 1943
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7434545 | Water heater and method of operating the same A gas water heater device includes a combustion chamber for providing a gas flow, a pipe assembly, and a heat exchanger disposed over the combustion chamber including a plurality of thermal conductors disposed in parallel with each other, each of the plurality of th... | 10/14/2008 |
| 7281498 | Compact high efficiency gas fired steam generator-humidifier A compact gas fired steam generator comprises a water tank with designated steam separation zone, boiling zone and a solids separation zone, a burner for burning gaseous fuel with air for producing combustion products and a flat tubular type heat exchanger immersed ... | 10/16/2007 |
| 7194963 | Ceramic fiber block reflector system The present invention utilizes radiation reflectors on the refractory wall of a fired furnace opposite the spaces between adjacent tubes. The refractory radiation reflectors have a base contiguous with the refractory surface and secured to a subjacent structure, and... | 03/27/2007 |
| 7163571 | Exhaust gas cooler and particulate scrubbing system An exhaust gas cooling and particulate scrubbing system for automobiles includes a first stage intercooler for initial, indirect cooling of the exhaust gas and a direct exhaust gas cooling and scrubbing device preferably positioned downstream in the exhaust system t... | 01/16/2007 |
| 7036462 | Boiler and burner apparatus A boiler apparatus includes a housing defining an interior boiler chamber and a burner element arranged to be in thermal communication with the boiler chamber. An ignition device is provided for instigating combustion of an inlet gas stream, and is arranged adjacent... | 05/02/2006 |
| 7021370 | Fin-and-tube type heat exchanger A heat exchanger having fins disposed adjacent to each other with tubes passing through the fins to interconnect the fins. Louvers are formed in each of the fins with each louver extending at an angle with respect to the fins. An upstream portion of the interconnect... | 04/04/2006 |
| 7013843 | Downdraft boiler with turbulators A downdraft boiler has a ceramic burner plate overlying a horizontal-tube heat exchanger at least the upper tubes of which each have an internal turbulator preventing premature vaporization of the water traversing the heat exchanger. The turbulator can consist of a ... | 03/21/2006 |
| 6948455 | Finned tube heat exchanger and method A high efficiency heat exchanger is shown which can be incorporated into a finned tube water heater. The heat exchanger has a pair of flow manifolds each having a water inlet and a water outlet and a series of connecting openings. Circular flow tubes have connecting... | 09/27/2005 |
| 6810836 | Finned tube water heater A finned tube water heater has a pair of flow manifolds each having a water inlet and a water outlet and a series of connected openings. Circular flow tubes have connecting ends which fit within the connecting openings of the manifold so that the tubes are arranged ... | 11/02/2004 |
| 6792895 | Combustion method and apparatus for NOx reduction Combustion method and apparatus for NOx reduction which are capable of achieving NOx reduction with the value of exhaust NOx under 10 ppm, as well as CO reduction at the same time. The combustion method for fulfilling NOx ... | 09/21/2004 |
| 6763786 | Equipment for water heater The invention relates to an equipment to be used in a gas-fired water heater which equipment contains a combustion chamber (2) and a heat exchanger (1). Accordingly the combustion chamber (2) is made of a ceramic material and provided with slots... | 07/20/2004 |
| 6675746 | Heat exchanger with internal pin elements A heat exchanger/heater comprising a tubular member having a fluid inlet end, a fluid outlet end and plurality of pins secured to the interior wall of the tube. Various embodiments additionally comprise a blocking member disposed concentrically inside the... | 01/13/2004 |
| 6526898 | Furnace with radiant reflectors The present invention utilizes radiation reflectors on the refractory wall of a fired furnace opposite the spaces between adjacent tubes. The radiation reflectors focus the reflected radiation from the flame onto the dark side of the tubes. The invention ... | 03/04/2003 |
| 6497199 | Catalytic combustion heat exchanger A catalytic combustion heater having, in a fuel gas flow passage in which an inflammable gas- and combustion support gas-containing fuel gas flows, tubes in which an object fluid to be heater flows, and an oxidation catalyst provided on outer surfaces of ... | 12/24/2002 |
| 6453852 | Temperature stratified superheater and duct burner A heat recovery system includes an upstream superheater section and a duct burner arranged to provide improved performance. The upstream superheater section and duct burner are arranged to reduce the negative effects of heat extraction by the upstream sup... | 09/24/2002 |
| 6397788 | Compact ultra high efficiency gas fired steam generator A compact gas fired steam generator comprises a steam separation chamber integrated with vertical fin tubes, a down comer tube and a tube header immersed in a thermally insulated firebox chamber provided with horizontally firing gas burners, a condensing ... | 06/04/2002 |
| 6352054 | Catalytic combustion heater A catalytic combustion heat exchanger includes a fuel gas passage and a number of tubes, which are located in the fuel gas passage. Fuel gas flows in the fuel gas passage. An object fluid, which is heated by the heat exchanger, flows in the tubes. Fins, w... | 03/05/2002 |
| 6311646 | Hot water heater A hot water heater having a housing with a top chamber, a bottom chamber and a main tank. A cold water inlet pipe runs into the top chamber and extends into the tank. The cold water inlet pipe coils inward, beginning at circumference of the top chamber be... | 11/06/2001 |
| 6283068 | Air-heated/hot-water type vaporizer and air-heated/hot-water type gas producing plant The present invention provides an air-heated/hot-water vaporizer having a very high thermal efficiency and which is easy to handle for a long period of time. Hot water supplied to the inner tube 24 of the hot water tube 22 passes through the inner tube 24... | 09/04/2001 |
| 6269782 | Water-tube boiler Boiler efficiency is further improved and the whole boiler body is slimmed down by totally improving heat transfer surfaces confronting gas flow passages, i.e., by forming the heat transfer surface structure into three stages, and moreover by making effec... | 08/07/2001 |
| 6167846 | Catalytic combustion heater Multiple heat-receiving fluid passages, through which heat-receiving fluid flows, are arranged in layers in a fuel gas passage provided in a container. Multiple fins, on which an oxidation catalyst is carried, are provided on outer peripheries of the heat... | 01/02/2001 |
| 6158396 | Water boiler with metal core This invention relates to a natural gas fired water boiler having a spirally wrapped finned heat exchanger surrounding a burner. The center of the heat exchanger being plugged by a metal core having a constantly reducing diameter truncated cone top.... | 12/12/2000 |
| 6138666 | Direct fired outdoor heater and heating method A heater includes a housing having an angled top, a fan having a discharge disposed parallel to the angled top of the housing, and a baffle for laminarizing airflow through the heater. The heater may also create airflow through a cover, across a housing, ... | 10/31/2000 |
| 6041743 | Water-tube boiler and burner The invention provides a water-tube boiler and a burner capable of realizing a reduction in NOx and CO in both the combustion of liquid fuel and the combustion of gaseous fuel. The water-tube boiler comprises a burner which uses liquid fuel or ... | 03/28/2000 |
| 5915468 | High-temperature generator A generator which can prevent deterioration of the chilling performance and corrosion, and can provide a high degree of reliability and long service life is disclosed. The high-temperature generator comprises a combustion chamber for flowing a combustion ... | 06/29/1999 |
| 5913289 | Firetube heat exchanger with corrugated internal fins A firetube heat exchanger having a tubular member with a fluid inlet end and a fluid outlet end and a plurality of axially aligned fins secured to the interior wall of the tubular member. The axially aligned fins are constructed of at least one sheet of c... | 06/22/1999 |
| 5890458 | Multistep water heater having a device for increasing combustion efficiency A water heater comprises a body portion; a plurality of heat transfer panels which are comprising the wall and the inner partition of the body portion and connected to each other through a water pipe; heat insulation plates which connect the heat transfer... | 04/06/1999 |
| 5887552 | Fluid heat generator, with selective control of the flow The diathermic fluid heat generator comprises a plurality of pipe nests for fluid circulation, which define the internal walls of a combustion chamber, where the diathermic fluid is heated directly by radiation; and at least a pipe nest in a conveying pat... | 03/30/1999 |
| 5816199 | High efficiency water heater A water heater having a vertical tank and a coil pipe located coaxial around the tank with a vertical ring space between them that serves as a ring combustor (bottom portion) and a flue for hot gases (upper portion). Assembly of low pressure (from about 5... | 10/06/1998 |
| 5810246 | External gas-fired water/glycol heater An external gas-fired heater for heating a water/glycol fluid is comprised of a housing having a combustion chamber therein. The chamber has a coil through which the water/glycol fluid is circulated and heated by a cylindrical gas burner disposed inside t... | 09/22/1998 |
| 5806470 | Vaporizer for low temperature liquid A lower header 10 into which low temperature liquid is flowed and an upper header 16 are connected with each other via a plurality of outer heat exchange tubes 22. A plurality of inner heat exchange tube 24 are respectively provided in the corresponding o... | 09/15/1998 |
| 5799622 | Furnace heat exchanger tube cleaning system A furnace heat exchanger tube cleaning apparatus is described. The furnace comprises a combustion chamber for generating heated gases including combustion products, a water jacket containing a liquid to be heated and including heat exchanger tubes passing... | 09/01/1998 |
| 5799724 | Trapezoidal deflectors for heat exchanger tubes A deflector means having a trapezoidal cross section for reducing erosion of heat exchanger tubes caused by a flowing, particle-laden combustion gas produced in a fossil fuel-fired boiler, and a draft loss reduction means for use in connection with the de... | 09/01/1998 |
| 5782208 | Water boiler with metal core This invention relates to a natural gas fired water boiler having a spirally wrapped finned heat exchanger surrounding a burner. The center of the heat exchanger being plugged by a metal core having a constantly reducing diameter truncated cone top.... | 07/21/1998 |
| 5746159 | Combustion device in tube nested boiler and its method of combustion In a combustion device, a boiler is provided with a water tube nest in which combustion, flame holding, fuel-air mixing, and heat absorption are carried out by each water tube in a tube nest. The arrangement of this combustion device enables elimination o... | 05/05/1998 |
| 5671700 | High efficiency water boiler having finned heat exchanger This invention relates to a natural gas fire water boiler having a spirally wrapped finned heat exchanger surrounding a burner. The center of the heat exchanger being plugged by a core having a constantly reducing diameter truncated cone top.... | 09/30/1997 |
| 5566648 | Heat exchanger A heat exchanger is disclosed including an annular lower manifold to which a cold-water intake through which cold water comes is connected; an annular upper manifold to which a hot-water exit through which hot water is discharged is connected; a plurality... | 10/22/1996 |
| 5526776 | Gas quick water heater A gas quick water heater is disclosed which includes a heat exchanger having an annular lower manifold with a cold-water intake, an annular upper manifold with a hot-water exit, a plurality of coil-shaped heat exchanging tubes connected between the manifo... | 06/18/1996 |
| 5482009 | Combustion device in tube nested boiler and its method of combustion In a combustion device, a boiler is provided with a water tube nest in which combustion, flame holding, fuel-air mixing, and heat absorption are carried out by each water tube in a tube nest. The arrangement of this combustion device enables elimination o... | 01/09/1996 |
| 5471956 | Heat-insulating structure for combustion equipment Discloses a heat-insulating structure for combustion equipment of such a type that a burner element of combustion equipment is insertedly disposed at an installation opening of thermal equipment such as a boiler, with a view to simplified structure and en... | 12/05/1995 |
