Bizarre Patents
Dining Table Having Integral Dishwasher
A space-saving dishwasher, which may be installed within a counter top or table, having a dish-carrying rack that is vertically shiftable through the open top of the dishwasher for facilitating loading and unloading of the dishes.
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 |
| 7500454 | High efficiency water heater A high efficiency water heater comprising a generally cone shaped tank; an surrounding and spaced from the tank defining a passageway for flue gases between an inner surface of the enclosure and the outer surface of the tank, said enclosure having an outlet for flue... | 03/10/2009 |
| 7299769 | Condensing gas fired water heater A water heater is shown having a closed metal tank with an upwardly mounted combustion chamber and burner/blower assembly. Curved fire tubes convey the products of combustion from the chamber to an exterior mounted flue assembly. The closed tank is enclosed by a rot... | 11/27/2007 |
| 7172016 | Internally mounted radial flow, high pressure, intercooler for a rotary compressor machine A header construction intended for use in a heat exchanger (36) employed in a relatively high pressure application includes an array of generally parallel tube runs (84) with fins (82) extending between adjacent ones of the tube runs. At least o... | 02/06/2007 |
| 7168425 | Cooking apparatus A cooking apparatus, which is provided with a cover having an air ventilation structure that ventilates air into and out of a cooking space to maintain a desirable temperature of the cooking space. Accordingly, the cooking apparatus has at least one heating unit, a ... | 01/30/2007 |
| 7100541 | High efficiency tank type continuous flow and self cleaning water heater A water heater comprising a closed tank having a water inlet for connection with a water supply, and a hot water outlet connected to the tank interior; a flue pipe extending vertically through the tank and having an upper portion for connection with a vent pipe; a c... | 09/05/2006 |
| 7044730 | Device for improving gas fuel burning The invention concerns a device for bringing together a gas fuel and an oxidant in proportions providing optimal burning, so as to obtain, in particular for a fuel gas supplied with low pressure level and containing hydrocarbons, a smokeless burning. Said dev... | 05/16/2006 |
| 7024244 | Estimation of stroke volume cardiac output using an intracardiac pressure sensor Techniques are described for estimating a rate of blood flow from a heart, such as a stroke volume or a cardiac output, as a function of a pressure in the heart. A pressure monitor may measure pressure values, and identify the times at which pressure values and valv... | 04/04/2006 |
| 7007742 | Method and system for pre-heating water A system and method for pre-heating water prior to entering a hot water heater is disclosed. The system includes: a cold water supply line; an ambient air heat exchange device positioned within an insulated area of a building wherein the ambient air heat exchange de... | 03/07/2006 |
| 6968688 | Two-cycle hot-gas engine A two-cycle hot-gas engine comprising an expansion piston in a heatable cylinder member and a compression piston in a coolable cylinder member. The expansion piston and the compression piston are disposed along a common axis. ... | 11/29/2005 |
| 6953335 | Method and apparatus for reducing nitrogen dioxide (NO2) emissions in a flueless heating appliance An apparatus for reducing nitrogen dioxide emissions in a flueless heating appliance or heater includes a heat-exchanger for exchanging heat contained in fumes produced by the combustion of a fuel in the heating appliance. A heating appliance or heater without a fum... | 10/11/2005 |
| 6934586 | Cardiac resynchronization with adaptive A1-A2 and/or V1-V2 intervals In a system that provides bi-atrial and/or bi-ventricular pacing, the system adjusts an interval between paces delivered to the atria, and/or an interval between paces delivered to the ventricles, as a function of pressure data from the heart. In an exemplary embodi... | 08/23/2005 |
| 6926073 | Spiral heat exchange device Disclosed is a spiral heat exchanging device having an improved cooling efficiency in which a plurality of spiral pipes connected to an inlet pipe for introducing a coolant are formed to be spirally wound with a gradually increased diameter toward a blast fan and th... | 08/09/2005 |
| 6666173 | Hot gas liquid heater A hot gas water heater has a housing, and at least a pair of concentric coils in the housing through which liquid to be heated is sequentially passed. Each coil has a helical tube with adjacent turns connected by a web member such that the tube and web me... | 12/23/2003 |
| 6578830 | Gas-fired humidifier A gas-fired humidifier includes a heat exchanger with a plurality of generally upwardly extending tubes. These are connected at their lower ends to a source of water and at their upper ends to a steam header. A gas-fired burner is arranged to direct heat ... | 06/17/2003 |
| 6318304 | Water heater The water heater includes a water tank, a burner below the tank, a casing around the outside surface of the tank and spaced therefrom so as to define a flue path within the casing and along the outside surface of the tank for combustion products. Multiple... | 11/20/2001 |
| 6295980 | Composite polymer manifold for water heating unit A header for a heat exchanger having a plurality of parallel hollow tubes mounted between a pair of flat mounting plates and defining a plurality of passages through the plates. The header comprises a tubular elongated body portion having an outer surface... | 10/02/2001 |
| 6044803 | Vertical tube water heater apparatus A water heater apparatus is shown which includes a water heating tank having generally cylindrical sidewalls with upper and lower ends, each of which is closed by a transverse wall section to define a closed tank interior. The tank also has a water inlet ... | 04/04/2000 |
| 5989020 | Multiple stage heating apparatus A heating apparatus includes at least first and second burners located in a combustion chamber wherein the burners are separated by a divider for deterring uncombusted fuel flowing from a firing burner to an area adjacent to a non-firing burner. In anothe... | 11/23/1999 |
| 5826569 | Low NOx water heater with finned burner A low NOx water heater burner including a burner body having opposed surfaces; and a multiplicity of spaced apart energy absorbing fins connected to at least one of the surfaces and positioned to absorb energy from burner flames generated by co... | 10/27/1998 |
| 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 |
| 5775267 | Instant hot water boiler structure The boiler has on the top thereof, a smoke discharging cover with a water receiving tank, the interior thereof includes an upper combustion chamber and a lower water storage chamber, a water storage tank is provided between the boiler wall and the combust... | 07/07/1998 |
| 5727482 | Suspended vortex-cyclone combustion zone for waste material incineration and energy production A system for waste-to-energy conversion of municipal solid waste and urban forest residue includes as a central element a vortex-cyclone suspended combustion zone furnace, supplied via a shredder and a rotary preheat kiln, and followed by a waste heat boi... | 03/17/1998 |
| 5713310 | Heat exchanger for pressure washer A high pressure washer of this invention comprises a heat exchanger for heating a cleaning fluid, and a dispenser for dispensing heated cleaning fluid under pressure onto a surface to clean it. The heat exchanger comprises a tubular casing and a generally... | 02/03/1998 |
| 5687708 | Gas-fired batch booster water heater apparatus A gas-fired batch booster water heater for supplying sanitizing water to a dish washing machine comprises a chamber member, a water inlet tube, a gas-fired burner, a water outlet tube, a valve member, and a member for circulating water through the chamber... | 11/18/1997 |
| 5606964 | Portable pool heater A heater for liquids having a pump that receives the liquid to be heated includes a burner for producing heat output. A primary heating coil has an inlet for receiving the liquid to be heated from the pump and an outlet. The primary heating coil is locate... | 03/04/1997 |
| 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 |
| 5546760 | Generator for absorption heat pumps An absorption refrigeration and heating system has helical concentric coils for two generators (80 and 81) and recuperators (86 and 95) on a common axis (232) with a heating unit (84) at the center and allowing the hot combustion gases (245) to circulate ... | 08/20/1996 |
| 5544497 | Regenerator for absorption refrigerating machine In a regenerator for an absorption refrigerating machine which uses combustion gas as a heat source, the regenerator comprises a plurality of drum shells provided in a body casing of the regenerator, each drum shell has a solution inlet provided in a shel... | 08/13/1996 |
| 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 |
| 5476375 | Staged combustion in a porous-matrix surface combustor to promote ultra-low NOx Emissions A porous matrix, surface combustor-fluid heating apparatus in which combustion of a fuel/oxidant mixture is carried out in stages within a stationary porous bed disposed in a combustion chamber. A fuel-rich fuel/oxidant mixture is burned within a region o... | 12/19/1995 |
| 5448969 | Fluidic burner A gas burner comprising a gas manifold feeding an array of fluidic oscillators. Each fluidic oscillator has a power nozzle connected to the gas manifold and an outlet for issuing a sweeping jet of gas to ambient. Each fluidic oscillator is spaced a predet... | 09/12/1995 |
| 5437264 | Waste heat collector for domestic gas water heaters A heat collection apparatus which collects the lost or waste heat from a domestic gas water heater. This apparatus sits on top of the water heater over the flue, where the lost heat is directed through the collector fins on the coil into the hot water out... | 08/01/1995 |
| 5415133 | Room heating hot water boiler A room heating hot water boiler is disclosed in which a plurality of longitudinal rectangular hexahedral water tank groups and a plurality of lateral hexahedral water tanks are disposed in four steps above a combustion chamber in such a manner as to commu... | 05/16/1995 |
| 5410989 | Radiant cell watertube boiler and method A watertube boiler system is disclosed which provides a plurality of radiant burners mounted within a housing in parallel, spaced-apart relationship. Individual burners are encircled by heat cells comprised of watertube coils which are in tangential juxta... | 05/02/1995 |
| 5410988 | Tubular furnace and method of controlling combustion thereof A tubular furnace uses a fluid to be heated which is prevented from coking or a heating tube which is prevented from burning. Heat is provided through a smaller heat transfer area and problems of corrosion at low temperature of the heating pipe in the tub... | 05/02/1995 |
| 5381674 | Generator for absorption refrigerating machine A compact generator for an absorption refrigerating machine that uses combustion gas as a heat source, which enables stable heating. The generator 1 has a dilute solution inlet 3, a solution outlet 4, and a vapor outlet 5. A multiplicity of heat transfer ... | 01/17/1995 |
| 5375563 | Gas-fired, porous matrix, surface combustor-fluid heater A porous matrix, surface combustor-fluid heating apparatus comprising a combustion chamber, a cooled flow distributor proximate an inlet end of said combustion chamber and supporting a stationary porous bed within said combustion chamber, porous bed heat ... | 12/27/1994 |
| 5371918 | Water heater for carpet cleaning systems A water heater for a carpet cleaning system has a first chamber and a main heat exchanger disposed within the first chamber, the main heat exchanger utilizing heat from a first source, preferably an engine, to heat water to be used in the carpet cleaning ... | 12/13/1994 |
| 5365888 | Fluid heater and method A fluid heater and method are disclosed for heating a heat transfer fluid flowing within a heater tube using reradiative and convective heat transfer while avoiding direct flame impingement on the heater tube. The heater tube is separated from the flame b... | 11/22/1994 |
| 5365887 | Ultra-high efficiency on-demand water heater and heat exchanger The heat exchange structure comprises a series of tubes arranged in a circular pattern extending between upper and lower manifolds. Water flows from the upper manifold through these tubes to the lower manifold. Annular fins are stacked on these tubes. A l... | 11/22/1994 |
