Patents Examined by Tim R. Miles
  • Patent number: 5667730
    Abstract: An attachment for a fuel carburetor possesses a fuel inlet, a needle-and-seat valve disposed in the inlet, and a float attached to the needle-and-seat valve. In one embodiment, the attachment is placed between and is in fluid communication with both the float bowl and the metering block of a typical carburetor. Fuel is pumped into the float bowl and the attachment in parallel from the fuel pump. The float in the attachment rises and falls according to the level of fuel in the interior of the attachment and float bowl, and thus regulates the position of the needle-and-seat valve, which in turn regulates how much fuel is pumped into the attachment and float bowl. The attachment is also provided with a device for injecting a spurt of fuel directly into the metering block to avoid lean fuel conditions when the throttle is initially opened. In an alternative arrangement, the float bowl and attachment are made as one integral unit.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: September 16, 1997
    Inventor: Melvin Russell Barfield
  • Patent number: 5667734
    Abstract: A carburetor in which no deviation or change occurs in the adjusted position of a fuel regulating needle valve and when a cap for limiting the adjustment is mounted on the fuel regulating valve the cap cannot be intentionally broken or removed. A flow area of a fuel pasage of a carburetor body is adjusted by a needle valve received in a threaded hole in the body. Adjacent the threaded hole the carburetor body has a cylindrical cavity having a larger diameter than that of the threaded hole. A larger-diameter threaded portion is provided on the needle valve adjacent its head. A stop ring in contact with a shoulder in the cylindrical cavity is fitted on the larger-diameter threaded portion of the valve. A cup-shaped cap is fitted on the serrated head of the fuel regulating valve. An axial protrusion formed on the outer peripheral wall of the cap is engaged with an axial groove opening into the peripheral wall of the cylindrical cavity.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: September 16, 1997
    Assignee: Walbro Corporation
    Inventor: Shinichi Ohgane
  • Patent number: 5662835
    Abstract: An apparatus for emitting a chemical agent includes a supply of the chemical agent, an emanator from which the chemical agent can diffuse, means for transporting the chemical agent from the supply to the emanator, means for interrupting the transportation of the chemical agent from the supply to the emanator and means for providing a flow of air over the emanator to promote diffusion of the chemical agent from the emanator. The supply of the chemical agent, the emanator, the means for transporting the chemical agent and the means for interrupting the transportation of the chemical agent may be provided in the form of an integral replaceable cartridge.
    Type: Grant
    Filed: February 28, 1996
    Date of Patent: September 2, 1997
    Assignee: Reckitt & Colman Products Limited
    Inventor: Keith Collingwood
  • Patent number: 5662838
    Abstract: A liquid vaporizing apparatus includes a container for holding a liquid at a constant temperature with a temperature adjustment unit and a gas that does not react with the liquid is bubbled through the liquid in the container to vaporize the liquid. The container for holding the liquid has an internal space above the liquid and a second temperature adjustment unit for controlling the temperature of the internal space separately from the temperature of the liquid in the container. Since the internal space is maintained at a constant temperature, higher than the temperature of the liquid, the quantity of the vaporized liquid produced is stable.
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: September 2, 1997
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Ryoden Semiconductor System Engineering Corporation
    Inventors: Tooru Yamaguchi, Kouichirou Tsutahara, Takayuki Suenaga
  • Patent number: 5662837
    Abstract: The present invention provides a simple and efficient means for dissolving carbon dioxide gas discharged from sources such as thermoelectric power plants into the seawater and for isolating it at deep sea level. The means comprises an inverted U-shaped gas lift 1 having a shorter gas lift dissolving pipe 2 and a longer descending pipe 3 being connected with each other at the top, said gas lift dissolving pipe 2 is held at shallow sea level, and the lower end of the descending pipe 3 is opened at deep sea level. When carbon dioxide gas is injected in from the lower end of the gas lift dissolving pipe 2, the seawater is introduced from the lower end of the dissolving pipe by gas lift action of the carbon dioxide gas in the dissolving pipe 2, and the carbon dioxide is completely dissolved into the seawater until it reaches the upper end of the dissolving pipe.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: September 2, 1997
    Assignee: Agency of Industrial Science and Technology
    Inventors: Takayuki Saito, Takeo Kajishima
  • Patent number: 5662836
    Abstract: A carburetor includes a main fuel jet having a reciprocal needle received therein for controlling fuel as such fuel flows into an air flow passage of the carburetor. The needle includes a stepped portion which is integrally formed or rigidly affixed thereto. The stepped portion is located along the length of the needle such that is located within the fuel jet in the minimum fuel flow position of the needle. This stepped portion prevents unwanted fuel from wicking or traveling up along the length of the needle when the needle is in its minimum fuel flow position and fuel flow through the fuel jet is to be at its minimum value.
    Type: Grant
    Filed: October 25, 1995
    Date of Patent: September 2, 1997
    Inventor: Robert M. Yost
  • Patent number: 5660765
    Abstract: The air-fuel mixture produced by a carburetor is controlled by an apparatus that includes a choke valve located in a passage of the carburetor. A solenoid with a moveable plunger rod coupled to move the choke valve between extreme open and closed positions, and having a stop fixed to the plunger rod. A bimetallic element changes shape in response to changes in temperature, wherein below a given temperature the bimetallic element engages the stop thereby restricting movement of the plunger rod and preventing the choke valve from reaching the extreme open position. Above the given temperature the bimetallic element changes shape to avoid engaging the stop thereby allowing the choke valve to reach the extreme open position. A foil electric heater is mounted on a surface of the bimetallic element to match the shape of the element to the desired performance characteristic of the engine.
    Type: Grant
    Filed: June 26, 1996
    Date of Patent: August 26, 1997
    Assignee: Kohler Co.
    Inventors: James L. King, Donald R. Fischer, Greg D. Klompenhouwer
  • Patent number: 5660767
    Abstract: The invention provides highly deformation resistant Lessing rings made in two parts. The first part comprises a metal strip bent into a ring shape with the contacting ends provided with projections and indentations which fit together to form a complete ring. The ends are held together using an anchor strut which has projecting tabs at both ends. The tabs fit into cooperating slots located in the projections at the ends of the bent strip and at the midpoint of the bent metal strip. The tabs are bent over to locate all parts rigidly in place.
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: August 26, 1997
    Assignee: Norton Chemical Process Products Corp.
    Inventor: Frank D. Moore
  • Patent number: 5660766
    Abstract: An aerator for introducing and dispersing air as fine bubbles in a liquid-solid slurry has a lower body, an upper body and replaceable blades affixed between the upper and lower bodies. The blades have a body portion positioned between the upper and lower bodies and a projecting portion extending radially outwards. The upper body has a vertical axial bore which is connected to an air tube open to the atmosphere. As the aerator is rotated by rotation of the air tube, air is drawn through the air tube into the body of the aerator and is dispersed out through air exit ports between the blades into the slurry, without intake of slurry into the aerator.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: August 26, 1997
    Inventor: Bernhard Van Dyk
  • Patent number: 5660764
    Abstract: The present invention relates to a carburetion device for automobile engines, which comprises a magnetite-containing carburetor 1. One side of the magnetite-containing carburetor 1 is connected to an engine and the other side is connected to a fuel hose 2, and a layer of magnetite is coated on the fuel hose 2 near the magnetite-containing carburetor 1. With this novel practical design, the fuel is magnetized, thereby allowing the fuel to be combusted at an efficiency of at least 98%, thus improving the air quality, prolonging the working life of automobile engines, and lowering the failure frequency of automobile parts.
    Type: Grant
    Filed: June 4, 1996
    Date of Patent: August 26, 1997
    Inventor: Teng-Hui Lu
  • Patent number: 5658503
    Abstract: A device is provided for mixing two fluids, one a liquid, the other a gas, where apertures are provided in channel tubes to mix the fluids in the individual channels. The mixing device provides a two fluid admixture for passage to downstream processing, most preferably the tubeside of a shell and tube heat exchanger. The vessel is equipped with a gas inlet means located below a liquid inlet means with respect to the height of the vertical vessel. A distributor plate is situated substantially perpendicular to said channel or channels at a point in said vessel below said apertures for influx of the liquid into the gas phase. The apparatus provides uniform distribution of gas and liquid to all parallel channels.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: August 19, 1997
    Assignee: Shell Oil Company
    Inventors: Stephen W. Johnston, Philip C. Lewellen
  • Patent number: 5653920
    Abstract: The humidification device includes a tube formed of gas permeable material connected to a water source by a tube formed of material that is substantially impermeable to water. The gas permeable tube permits water to evaporate through the tube wall and is thus an evaporation tube. The evaporation tube is disposed in a chamber that is to be humidified. As water evaporates from the evaporation tube, the humidity in the chamber builds up to a maximum level. At the maximum humidity level evaporation of water from the evaporation tube ceases. When the humidity level in the chamber drops below the maximum level, evaporation of water from the evaporation tube resumes to restore the humidity in the chamber to its maximum level. Water flow from the water source replaces evaporated water from the evaporation tube. The humidification device is thus self-regulating and does not require any water flow regulating devices. One or more water flow tubes can be connected to the evaporation tube from a water source.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: August 5, 1997
    Assignee: Bayer Corporation
    Inventor: Nicholas F. DiDomenico
  • Patent number: 5650100
    Abstract: The invention is directed to an apparatus for providing absorption of two fluid phases with one another. One of the phases made be a gaseous phase, while the other phase may be a liquid phase.
    Type: Grant
    Filed: August 25, 1995
    Date of Patent: July 22, 1997
    Inventor: Gerard A. Just
  • Patent number: 5648022
    Abstract: A wet flue gas desulfurization scrubbing tower has means therein for evenly distributing the flue gas flowing through the tower for more efficient treatment therein including a ring plenum for evenly exhausting the flue gas around the periphery of the tower through a series of differently sized openings and a centrally located annular opening for evenly exhausting the flue gas to the center of the tower.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: July 15, 1997
    Assignee: The Babcock & Wilcox Company
    Inventors: Wadie F. Gohara, George B. Watson, Randy J. Reynolds, Thomas W. Strock
  • Patent number: 5648023
    Abstract: A motorcycle vacuum response type carburetor comprises a carburetor body having an upper portion, a lower portion, a diaphragm device disposed at the upper portion and a floating member disposed at the lower portion. The diaphragm device has a diaphragm chamber and a diaphragm comprised of hydrogen impregnated nitrile butadiene rubber separating the diaphragm chamber into an upper section and a lower section. A venturi passage extends horizontally through the carburetor body and a guide passage extends through the venturi passage. The guide passage has an upper end portion in communication with the lower section of the diaphragm chamber. A piston valve is movably disposed in the guide passage and has a head portion fixed to a central portion of the diaphragm. A needle valve for adjusting a jetting amount of a fuel is mounted to a lower portion of the piston valve and extends into the float chamber. A first communication passage communicates the lower section of the diaphragm chamber to the atmosphere.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: July 15, 1997
    Assignee: Suzuki Kabushiki Kaisha
    Inventor: Tetsuo Nojima
  • Patent number: 5645770
    Abstract: An integral collector-distributor device including chimney hats and adapted for use in a gas-liquid exchange column to promote radial mixing of a liquid on a distributor tray surface. The collector-distributor device includes a tray having a tray surface adapted to extend generally horizontally across the cross-sectional area of the column to collect downwardly flowing liquid. A plurality of gas risers on the tray permit the upward movement of an upwardly flowing gas through the tray, and a plurality of liquid distributors permit the generally uniform distribution of the collected downwardly flowing liquid to a lower section of the column.
    Type: Grant
    Filed: April 18, 1996
    Date of Patent: July 8, 1997
    Assignee: Koch Engineering Company, Inc.
    Inventors: Kenneth J. McNulty, Neil Yeoman
  • Patent number: 5645771
    Abstract: A gas injection apparatus for injecting a gas into a liquid comprising a baffle plate, a re-circulation chamber, and a discharge nozzle. The discharge nozzle is oriented normally to the baffle plate so that a liquid stream composed of the liquid is directed against the baffle plate and produces an oppositely directed flow towards the outer peripheral edge of the baffle plate. The oppositely directed flow has a sheet-like turbulent flow regime located adjacent to the plate and a circulating flow regime located above the turbulent flow regime and bounded by a re-circulation chamber. The gas is mixed into the liquid so that smaller bubbles are entrained in the turbulent flow regime and are discharged with the liquid flowing in the turbulent flow regime from the outer peripheral edge of the baffle plate. Larger bubbles flow into the circulating flow regime to break up into smaller bubbles which are entrained in the turbulent flow regime swept out of the apparatus.
    Type: Grant
    Filed: September 21, 1995
    Date of Patent: July 8, 1997
    Assignee: The BOC Group, Inc.
    Inventors: Rustam H. Sethna, Atul M. Athalye, Michael K. Sahm
  • Patent number: 5645769
    Abstract: The vehicular humidified cool wind system includes a blower, atomizing means, a water tank and an air passage which are integrated, and is mounted on the ceiling above the driver to blow out a humidified wind downward. The air passage is divided into a humidified wind passage to be fed with atomized water and an ordinary wind to be fed with no atomized water. The air outlet has a double duct structure, an internal cylinder and external cylinder, in which the humidified wind having passed through the humidified wind passage is blown out of an internal cylinder whereas the ordinary wind having passed through the ordinary wind passage is blown out of an external cylinder around the internal cylinder. The humidified wind is prevented from diffusing while being surrounded by the ordinary wind, so that it efficiently reaches the driver to give him a cool feeling.
    Type: Grant
    Filed: June 16, 1995
    Date of Patent: July 8, 1997
    Assignee: Nippondenso Co., Ltd.
    Inventors: Makoto Tamaru, Kazuhiko Nakagawa, Shouichi Yamaguchi
  • Patent number: 5643503
    Abstract: Device for introducing a gas into a liquid, of the type which comprises a drive motor, a wind box, a gas intake pipe and a radial diffusion turbine coupled to an agitator turbine, the two turbines being immersed in the liquid mass and the gas being conveyed to the centre of the diffusion turbine and distributed between the vanes thereof, wherein the said diffusion turbine has a plurality of long radial vanes alternating with shorter radial vanes, the latter not extending as far as the shaft of the said turbine so as to leave a clear space between the said shaft and the respective internal edges of the said shorter radial vanes, these two sets of vanes being fixed under a plate driven in rotation by the said shaft and the said radial vanes of the diffusion turbine laterally extend the blades of the agitator turbine as far as a region of relative depression situated behind the turbine.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: July 1, 1997
    Inventor: Jean-Louis Roland
  • Patent number: 5641436
    Abstract: A liquid-vapor contact column comprising an outer tubular shell and a plurality trays supported within the tubular shell to intimately contact an ascending vapor phase with the descending liquid phase. An alignment of the active portions of the trays can produce a counterflow pattern in the vapor phase, opposite to the direction of flow of the liquid phase. This results in an increased hydraulic gradient taken from the outlet to the inlet of the tray. In order to inhibit the ascending vapor phase from flowing in the counterflow direction the active portions of the trays are staggered.
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: June 24, 1997
    Assignee: The BOC Group, Inc.
    Inventors: Richard W. Potthoff, Alan C. Burton