Patents Examined by Tim R. Miles
  • Patent number: 5688445
    Abstract: A distributor for supplying a mixed phase flow of gas-liquid feed uniformly on the surface of a trickle-bed of solid particles, including a tray horizontally arranged above the surface of the trickle-bed. The tray is equipped with a plurality of open-ended tubular distributor downcomers of a predetermined tube diameter and extend vertically for a certain height above and below the tray. The downcomers are adapted to provide passage for liquid flow through horizontal aperture in the tube wall of the downcomers and to provide passage for gas flow through the open ends of the downcomers. The apertures are disposed in the tube walls at various elevations above the tray with a predetermined minimum elevation for maintaining a liquid level on the tray.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: November 18, 1997
    Assignee: Haldor Topsoe A/S
    Inventor: Johannes Wrisberg
  • Patent number: 5685887
    Abstract: A filter element is constructed such that a filter material having a corrugated sectional surface is formed in the shape of a cylindrical housing, and an upper opening portion of the cylindrical housing is kept closed, and an lower opening portion is connected to an air suction duct. A row of hills and valleys of the corrugated sectional surface is formed with a certain front angle relative to the wall surface of the cylindrical casing.
    Type: Grant
    Filed: December 27, 1995
    Date of Patent: November 11, 1997
    Assignee: Going Tokyo, Co, Ltd.
    Inventor: Kazuomi Mochida
  • Patent number: 5683493
    Abstract: A fluid separation packing that is useful as a packing material for distillation and fractionation columns or towers which provides for co-current liquid and vapor contact during the countercurrent separation process. The packing comprises a number of connected packing elements, suitably in the form of connected octagons, which have continuous side walls with an upper end and a lower end which terminates in a base with a vapor opening and a vapor tab above the opening. The side walls which define openings between adjacent packing elements are connected to one another to define a contacting volume above the base and there is a liquid slit on the side wall. The packing is also provided with liquid downcomers which have side walls with their upper portions within the openings between adjacent packing elements, and their lower portions extending below the packing element base. Downcomer ports through which liquid can flow are located proximate to the lower ends of the downcomers.
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: November 4, 1997
    Inventor: Berne K. Stober
  • Patent number: 5683629
    Abstract: A horizontal tray (3) is disclosed for use in a normally vertical column (1) for counter-currently contacting gas and liquid, which horizontal tray (3) comprises an upper horizontal plate (6), a lower horizontal plate (7), a liquid supply space (8), a liquid feed pipe (10) opening into the liquid supply space (8), and a vertical tubular contact and separation device (13), which comprises an open-ended tube (15) extending through the horizontal plates (6, 7), a liquid delivery device (22) comprising an upwardly directed liquid delivery opening (24, 39) which is in fluid communication with the liquid supply space (8), swirl imparting means (30) arranged in the open-ended tube (15) above the liquid delivery opening (24), and guide means (31) to direct liquid from the upper end of the open-ended tube (15) onto the upper horizontal plate (6), which horizontal tray further comprises an open-ended downcomer (35) having an inlet arranged above the upper horizontal plate (6) and an outlet arranged below the lower hori
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: November 4, 1997
    Assignee: Shell Oil Company
    Inventor: Gerrit Konijn
  • Patent number: 5681509
    Abstract: Improved apparatus and method for mixing and introducing gas into a large body of liquid. The apparatus supports and rotates a plurality of spoke-like discharge members below the surface of the liquid. The members have upwardly facing perforated discharge surfaces through which compressed gas is released up into the liquid. Preferably the members have non-porous lower portions. To counter upward "lift pump" effect forces created by the rotating members, the members are tilted with their leading edges lower than their trailing edges. The tilt of the members and the speed of rotation are balanced so that the resultant angle of attack of the liquid relative to the discharge surfaces is zero or slightly greater, for efficiently and effectively shearing the emerging gas into relatively small size bubbles.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: October 28, 1997
    Assignee: Biomixer Corporation
    Inventor: Wayne A. Bailey
  • Patent number: 5681508
    Abstract: A diaphragm carburetor for an internal combustion engine has a housing and a control chamber positioned in the housing and having a fuel inlet valve. A control diaphragm is positioned in the control chamber. A Venturi channel extends through the housing. At least one throttle valve is positioned in the Venturi channel. An idle valve and a main valve open into the Venturi channel and are connected with an idle valve channel, respectively, a main valve channel to the control chamber. A fuel pump is positioned in the housing. A fuel channel connects the fuel pump and the fuel inlet valve of the control chamber. A control lever that is actuated by the control diaphragm for controlling the fuel inlet valve is provided. The fuel inlet valve has a valve seat and a valve member with a sealing member cooperating with the valve seat for opening and closing the fuel inlet valve. The sealing element has a flat end face. The valve member is connected to the control lever.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: October 28, 1997
    Assignee: Andreas Stihl
    Inventor: Reinhard Gerhardy
  • Patent number: 5681507
    Abstract: An apparatus for manufacturing carbonated water according to the invention can quickly produce carbonated water with a high carbonic acid gas content which does not easily lose carbonic acid gas and hence satisfactorily stimulates the throat with agreeable pungency. Since it has a simple configuration and hence is economic and effective, it can suitably be used in an carbonated beverage supplying apparatus such as an automatic vending machine, an automatic dispenser or the like. With such an arrangement, the apparatus improves its safety and hence can constantly supply delicious carbonated water.
    Type: Grant
    Filed: May 29, 1996
    Date of Patent: October 28, 1997
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Yasuo Kazuma
  • Patent number: 5679290
    Abstract: An improved packed tower for effecting the absorption of a gas into a liquid, comprising a cylindrical tower wall defining a packing zone; a plurality of packing pieces contained within the packing zone; a liquid distributor above the packing zone for distributing liquid onto the packing pieces; a gas feed inlet below the packing pieces for feeding gas through the packing zone, the improvement wherein the plurality of packing pieces comprises a first plurality of packing pieces, of a first packing piece size, disposed within a first region of the packing zone defining an annulus adjacent at an upper part of the tower wall, and a second plurality of packing pieces of a second packing piece size greater than the first packing piece size, within a second region of the packing zone. The packed tower provides higher efficiencies in gas absorption over prior art towers as to offer reduced tower and/or packing heights.
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: October 21, 1997
    Inventors: Gordon M. Cameron, Dahya Bhaga
  • Patent number: 5676888
    Abstract: The invention provides an apparatus for improving the water quality for hair and body care, wherein an exact impregnation ratio between CO2 and water may be maintained even at low water pressure by using a step piston 11, namely by using CO2 compressed gas cartridges which are refillable with CO2 compressed gas, and by eliminating cartridges into which water or moisture has penetrated.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: October 14, 1997
    Assignee: Technica Entwicklungsgesellschaft mbH & Co. KG
    Inventors: Alexander Kuckens, Horst Kohl
  • Patent number: 5676889
    Abstract: An apparatus for aerating and mixing liquids and gases that includes a hollow housing, at least one rotating object, rotating apparatus for rotating the rotating object, a shaft, and at least one adjustably positioned conduit tube. The hollow housing has a hollow housing first portion and a hollow housing second portion. The hollow housing first portion has a hollow housing first portion wall that contains at least one hollow housing first portion wall inflow port and the hollow housing second portion has a hollow housing second portion wall that contains at least one hollow housing second portion wall outflow port. The at least one rotating object is located in the hollow housing second portion and has a rotating object low pressure side. The rotating apparatus rotates the at least one rotating object and is located in the hollow housing first portion. The shaft connects the at least one rotating object to the rotating apparatus.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: October 14, 1997
    Assignee: Somerset Electronics, Inc.
    Inventor: Michael F. Belgin
  • Patent number: 5676886
    Abstract: A low lying fog simulator including a liquid carbon dioxide source and a cooler to be used with a smoke generating machine. The liquid carbon dioxide is forced through an expansion valve to provide a cold carbon dioxide gas pocket through which the smoke passes prior to being dispersed into the ambient. When dispersed into the ambient the cold smoke/carbon dioxide mixture falls toward a level near the earth's surface simulating a low lying fog.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: October 14, 1997
    Assignee: Sigma Services, Inc.
    Inventor: Richard N. Fleming
  • Patent number: 5676890
    Abstract: Described is a gas-introduction device designed to introduce a gas into a liquid. The device comprises at least one gas-feed manifold (10) and a multiplicity of tubular feed-in elements (12) which are open at the free end. Each feed-in element is surrounded by a perforated tubular membrane (14). A gas-supply line in each feed-in element terminates in the vicinity of the membrane. Each feed-in element comprises two support elements (46, 48) extending out from a central element. The central element has a flange which is designed to be fastened to the outside of the gas-feed manifold. A gas-supply line leads from a bore in the gas-feed manifold, via a central line (26) and two branch lines (28) leading off the central line (26), into longitudinal grooves behind the membrane. The central line and the branch lines are located in the central element. The feed-in element is a monobloc construction including the central element and the membrane-support elements.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: October 14, 1997
    Assignee: Rita Ott
    Inventor: Wilfried Ott
  • Patent number: 5676887
    Abstract: An orifice assembly is detachably attached to a cover serving as a wall surface of an atmospheric chamber. The orifice assembly includes two inner and outer communication ports in a housing thereof. The two inner and outer communication ports are shut out by a partition wall through which an orifice having a small diameter and a communication hole having a diameter larger than that of said orifice, and a check valve is disposed in the communication hole to close the latter therewith. One of the two inner and outer communication ports is communicated with an atmospheric chamber and the other inner and outer communication ports is communicated with the atmosphere. When the pressure in the atmospheric chamber becomes higher than the atmospheric pressure, the communication hole is closed with the check valve, and when the pressure in the atmospheric chamber 48 is equal to or becomes lower than the atmospheric pressure, the communication hole is opened.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: October 14, 1997
    Assignee: Mikuni Corporation
    Inventors: Isamu Soeda, Michihiko Aoshima
  • Patent number: 5674433
    Abstract: An aeration device disperses microbubbles into a liquid and maintains efficient transfer of gas to the liquid. The aeration device uses a number of sealed end, hollow fiber membranes that are hydrophobic and provided with pores in the walls of the tubular fibers that range from about 0.01 to 1.0 microns, so that very small bubbles are formed on the outside surface of the hollow fiber membranes. Gas pressures above the bubble point of the fiber membranes are used, and a cloud of microbubbles is expelled into the liquid as it is forced to flow past the fibers. These microbubbles provide a large surface area for the effective dissolution of gases into the liquid. The length of the hollow fiber membranes is controlled in order to obtain efficient small bubble formation.
    Type: Grant
    Filed: August 24, 1995
    Date of Patent: October 7, 1997
    Assignee: Regents of the University of Minnesota
    Inventors: Michael J. Semmens, Charles J. Gantzer, Michael J. Bonnette
  • Patent number: 5673481
    Abstract: Air grid systems for distributing a gas within treatment systems such as underdrain filters and contact clarifiers is disclosed. The air grid is supported from above so that it can be lowered into position and thus modified or repaired. Additionally, this feature permits retrofitting an air grid into an existing system, such as an underdrain filter, in which the bed of media overlies the underdrain is not upset by the installation. Thus, methods of installing or retrofitting air grid systems are also disclosed. In another aspect of the present invention, the air grid is comprised of an air manifold connected to air laterals by a spreader conduit that is inserted through a smooth bore in the walls of the manifold, thereby providing a simple and easy to manufacture structure that avoids problems found in prior art components.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: October 7, 1997
    Assignee: RF Delaware, Inc.
    Inventors: R. Lee Roberts, Douglas H. Eden, Andrew S. Taylor
  • Patent number: 5674434
    Abstract: The invention refers to a device to regulate the dosage of fuel, to be used in engine feeding systems by suction of the fuel. The device is to be set in the main conduit of air, overlays the diffuser (7) and involves a set of laminar elements (1) displayed in a radial way according to a common plan, being the fastening of its peripheral extremities achieved by means of its insertion in a double ring (2) which bears a central shutter through narrow radial extensions (6). The ring is fixed to a supporting base with saliences (4) to overcome the spaces between the laminar elements and reenterings (5) to allow its flexure. The flexure of the laminar elements is performed through a calculated progression according to a proper gradient resulting into the formation of in-between spaces (3).
    Type: Grant
    Filed: July 2, 1996
    Date of Patent: October 7, 1997
    Inventors: Fernando A. Baptista, Joao M. Pereira-Dias Baptista
  • Patent number: 5672299
    Abstract: A humidifier is constructed from basic units that have a rigid part supporting a hydrophilic part. A lower portion of a basic unit is disposed in a water-filled canal, and the upper portion is exposed to air, especially heated air from a heater. One embodiment is adapted for placement over a floor outlet for heated air to evaporate water from the canal into the heated air to increase the humidity thereof. This embodiment may be above or just below floor level. Various forms of covers are associated with the units. The humidifier may take the form of an ornamental replica of a windmill having hydrophilic material on rotating blades that dip into a water reservoir, and having a fan inside that blows air onto such material.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 30, 1997
    Inventor: Yousef Daneshvar
  • Patent number: 5672187
    Abstract: This invention relates to a system and process for fuel or liquid preparation including a plurality of vortex stacks of sequential vortex elements based on fuel or liquid inputs or conditions operationally coupled with an integrated pre-manifold centrifuge type-cyclone scrubber. Each vortex stack comprises a base vortex element followed by varying arrangements of air-accelerator vortex elements. The fuel enters the base vortex element creating a vortical (spinning) column, which is enhanced and accelerated by transonic-sonic velocity air inflows in the accelerator vortex elements. Entrained fuel aerosol droplets are sheared and turbulently reduced by pressure differentials into a viscous vapor phase, and then into a gas-phase state. The vortical column containing turbulently vaporized fuel and any residual aerosols in the air mixture then passed into and through a venturi.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: September 30, 1997
    Assignee: Cyclone Technologies Inc.
    Inventors: Howard P. Rock, Kelly P. Rock, Grant R. Wood
  • Patent number: 5670093
    Abstract: A system for distributing a fluid to a plurality of locations, in which a first conduit is provided receiving the fluid and a splitter is provided having a housing in flow communication with the first conduit for receiving the fluid. At least two branch conduits extend from the first conduit and parallel to the axis of the housing for respectively receiving portions of said fluid.
    Type: Grant
    Filed: February 14, 1996
    Date of Patent: September 23, 1997
    Assignee: Atlantic Richfield Company
    Inventor: Richard L. Payne
  • Patent number: 5670094
    Abstract: In an ozonized water producing apparatus in which a pressurized ozone gas generated by an electric discharge type ozonizer is dissolved in water to be treated through a porous hollow-fiber membrane, an infinite variable-speed control type pump is provided upstream of the hollow-fiber membrane to maintain the water pressure inside the hollow fibers higher than the ozone gas pressure and to control the water pressure and flow rate, and a control mechanism is provided to control the ozone concentration in the treated water on the basis of the ozone gas concentration. Thereby treated water containing neither tiny bubbles nor impurities is obtained, and the concentration, flow rate and pressure of the treated water are controlled at constant levels.
    Type: Grant
    Filed: January 25, 1996
    Date of Patent: September 23, 1997
    Assignee: Ebara Corporation
    Inventors: Kenichi Sasaki, Takayuki Saito, Ken Nakajima, Mitsuru Imai