Celebrity Inventors
Actress Jamie Lee Curtis is a patented inventor - she created a diaper equipped with a premoistened baby wipe. And that's no act!
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 |
| 7275533 | Pressure controller for a mechanical draft system Systems and method for controlling the flow of air through a mechanical draft system are disclosed herein. A pressure controller for controlling air pressure comprises an appliance controller configured to control the operation of a plurality of appliances, an intak... | 10/02/2007 |
| 7066170 | Apparatuses and methods for balancing combustion air and exhaust gas for use with a direct-vent heater appliance A combustion air and exhaust gas balancing system for use with a direct-vent heater appliance. The balancing system includes a combustion air valve in fluid communication with a combustion air duct and an exhaust gas valve in fluid communication with an exhaust gas ... | 06/27/2006 |
| 6807914 | Shutoff device for burners of a pulverized coal furnace A shutoff device is provided for pulverized coal burners of a pulverized coal furnace. Each burner has a primary tube that conveys a pulverized coal/air mixture and is connected with a feed line for supplying the mixture to the respective burner. Disposed in the fee... | 10/26/2004 |
| 6748880 | Boiler internal flue gas by-pass damper for flue gas temperature control A flue gas passage arrangement for a steam generator which permits adjustment of the heat transfer effectiveness of a final bank of heat exchanger surface to control a temperature of the flue gas flowing through and exiting from the flue gas passage and conveyed to ... | 06/15/2004 |
| 6260490 | Burner isolation valve for pulverized fuel systems A burner isolation valve or gate for use in the coal-delivery pipes of coal-fired power plants. Safety regulations often require that two valves be placed in the coal delivery line between a combustion chamber and an exhauster or pulverizer type deliver s... | 07/17/2001 |
| 6257155 | Curved blade by-pass damper with flow control A damper vane assembly for controlling the flow of flue gas between a flue gas pass of a combustion vessel which generates flue gas and a selective catalytic reactor operable to catalytically treat flue gas in a combustion system is provided. The damper v... | 07/10/2001 |
| 6220188 | Windbox burner The windbox burner has a register casing (2) with ports (3) for inflow of combustion air, secondary air pipe (35) enclosed by the register casing and having inlet ports (36) for secondary air, a ring damper (20) coaxial with the register casing and axiall... | 04/24/2001 |
| 6192810 | Laminar flow air register A register for use in conjunction with kraft recovery boilers or bark-fired boilers utilizes a pair of shaped damper foils to reduce turbulence and induce laminar flow of air from an associated windbox through a port in the boiler. The foils are mounted f... | 02/27/2001 |
| 6155183 | Method and apparatus for reducing NOx emissions from a multiple-intertube pulverized-coal burner A method and apparatus retrofitted to a multiple-intertube pulverized-coal burner to reduce NOx emissions of roof fired boilers. An internal two stage process controls the amount of secondary air which flows to the burner. The first stage inclu... | 12/05/2000 |
| 5997277 | Method and a device for recovery of energy from media containing combustible substances even at low concentration This invention relates to a method and device for recovery of energy from a medium containing combustible substances even at low concentrations. The method is characterized by raising the temperature of the medium in a regenerative combustor such as a rev... | 12/07/1999 |
| 5913273 | Incinerator including vibrator and incinerator including drying chamber A waste incinerator including separate burning-, blower-, chimney- and ash-receiving chambers. A suction-discharge port is provided in a wall between the burning chamber and the chimney chamber for discharging gases from the burning chamber through a chim... | 06/22/1999 |
| 5833851 | Method and apparatus for separating and deliquifying liquid slurries A screw press separator is provided herein for separating and deliquifying a slurry of solids and liquids e.g., a slurry of manure and water, or any other slurry of similar physical characteristics. The separator includes a cylindrical housing having a sl... | 11/10/1998 |
| 5824275 | Secondary and tertiary air nozzle for furnace apparatus An air nozzle assembly for use in associated combustion apparatus which includes a first elongated housing having first and second axial extremities. The first axial extremity thereof is open to the interior of the first housing and tapers axially from a ... | 10/20/1998 |
| 5682826 | Systems and methods for controlling a draft inducer for a furnace Systems and methods for controlling a draft inducer for use with a furnace. The draft inducer includes a fan for inducing a draft in the furnace combustion chamber that causes a pressure drop across a heat exchanger assembly for moving exhaust combustion ... | 11/04/1997 |
| 5676069 | Systems and methods for controlling a draft inducer for a furnace Systems and methods for controlling a draft inducer for use with a furnace. The draft inducer includes a motor for driving a fan for inducing a draft in the furnace that causes a pressure drop across the heat exchanger of the furnace. A memory stores info... | 10/14/1997 |
| 4969408 | System for optimizing total air flow in coal-fired boilers A system for monitoring combustion of coal in a boiler detects coal composition and heating value using a bulk material analyzer and determines an air/fuel mixture so that when the coal is burned oxygen is available throughout the boiler and the wall temp... | 11/13/1990 |
| 4770158 | Combustion with leakage resistant exhaust valve A combustor including a combustion chamber having two paths for removing combustion exhaust gases, a valve in one path, and means to provide, when the valve is in a closed position, pressure at a downstream side of the valve higher than the pressure insid... | 09/13/1988 |
| 4484562 | Flexible disk damper A flexible disk damper which is capable of providing tight seals for a large diameter opening over a wide range of temperatures. Disks are made sufficiently flexible to compensate for inherent warpage in the damper seat by using a steel with a higher yiel... | 11/27/1984 |
| 4442798 | Vent assembly A vent assembly adapted for venting into the atmosphere hot burner exhaust gases from the flue exhaust port of a heating appliance within an enclosure, such assembly including an exhaust duct and a relief duct. The exhaust duct is connected at one end to ... | 04/17/1984 |
| 4347832 | Controlled air intake apparatus for furnaces and the like A controlled air intake apparatus for a furnace includes a substantially flat cover plate attached to and placed over the updraft opening of the flue and a generally rectangular housing attached over the air intake opening adjacent the burner region. The ... | 09/07/1982 |
| 4274392 | Controlled air intake apparatus for furnaces and the like A controlled air intake apparatus for a furnace includes a substantially flat cover plate attached to and placed over the updraft opening of the flue and a generally rectangular housing attached over the air intake opening adjacent the burner region. The ... | 06/23/1981 |
| 4263890 | Flue restrictor A flue restrictor for installation in the flue piping of a heating system to reduce its effective cross sectional area comprises sheet metal inlet and outlet sections having flanges secured together in a joint that has a guideway in it for a sheet metal g... | 04/28/1981 |
| 4257393 | Venting system for a fuel-burning heating plant A venting system for a fuel-burning heating plant, such as a conventional gas-fired furnace. The venting system includes an open-bottomed diverter situated well above the base of the heating plant having vertically disposed inlet and outlet ducts attached... | 03/24/1981 |
| 4245568 | Roof baffles for fluework transporting dust-laden gases Moveable and fixed vertically depending, longitudinally spaced baffles are mounted perpendicular to the direction of gas flow on the roof of large generally horizontal runs of flues carrying dust laden gas as a cost-effective way to reduce gravitational d... | 01/20/1981 |
| 4213406 | Draft interrupter of a gas-fired boiler installation A gas-fired boiler installation provided with a combustion space being upwardly in communication with a flue and at the bottom being confined by a burner bed. Between the combustion space and the flue there is disposed a draft interrupter, to which at the... | 07/22/1980 |
| 4096038 | Method and apparatus for operating a calciner under a pressure differential Method and apparatus for the heat treatment of volatile containing materials in a rotary hearth type furnace wherein the flue gases emanating from the calciner are employed to create either a positive or negative pressure within the calciner hearth as wel... | 06/20/1978 |
