Patents Examined by Tim Miles
  • Patent number: 5334230
    Abstract: An air dryer is provided which permits the purge air to bypass the coalescing filter during the unloading cycle in order to minimize the back pressure in the desiccant filter, decrease the purge time of the dryer, and increase the efficiency of the air dryer. In one embodiment, the air dryer may have a passage disposed between the coalescing filter and the desiccant filter so as to permit purge air to bypass the coalescing filter during the unloading cycle. A turbosaver valve may also be disposed so that it controls not only the flow of air through the coalescing filter but also the discharge of the purge air and the contaminants. Disposing the turbosaver valve intermediate the upstream and downstream sides of the coalescing filter insures that the turbosaver valve passes the compressed air through the coalescing filter in the loading mode while permitting the purge air to by-pass the coalescing filter in the unloading mode.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: August 2, 1994
    Assignee: Midland Brake, Inc.
    Inventor: Alan Sloka
  • Patent number: 5332534
    Abstract: A process and system for enhancing the oxygen uptake by a liquid being aerated in a basin or tank with the aid of an aerator which can only aerate the liquid over a cross-sectional zone smaller than the total floor surface of the basin or tank. To achieve the enhancement, there is provided vertically above the aerator but at the surface of the body of liquid an enclosure which is open at its top and bottom and has a cross-sectional size sufficient to surround approximately the entire region where the rising directly aerated quantity of liquid reaches the surface of the body liquid.
    Type: Grant
    Filed: February 16, 1993
    Date of Patent: July 26, 1994
    Assignee: Heinrich Frings GmbH & Co KG
    Inventor: Heinrich Ebner
  • Patent number: 5330688
    Abstract: This invention relates to the combination of an aeration system and flexible diffuser assembly, especially for use in a sewage treatment tank, where the system includes a plurality of fluid medium transmission conduits, with each conduit provided with at least one flange projecting therefrom, where the flange includes a base plate mounted thereto and a central opening communicating with said conduit. The diffuser assembly comprises a first member having a flat continuous annular face portion and a central recess with a bore aligned with the central opening. A locking bolt member is provided to threadably engage the bore and central opening, where the bolt member includes a central, through orifice communicating with the conduit through which the fluid medium may pass.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: July 19, 1994
    Assignee: Enviroquip International, Inc.
    Inventor: Ernest W. Downs
  • Patent number: 5328646
    Abstract: An air treatment system has a removable and replaceable cartridge, the cartridge having a cylindrical plastic canister, and having a liquid-permeable vaporizing element disposed in the canister. The canister is located on one side in a cradle inside a housing where air flow is controlled between inlet and outlet ports by a pivoting frame member. A slider is moved up and down outside the housing to simultaneously move a pair of arms inside the housing into closed, partially open or fully open positions relative to the inlet and outlet ports. The canister has ports of special configuration and a baffle is placed in the canister to assist radial air flow and assure that air flows over the coiled air vaporizing element.
    Type: Grant
    Filed: October 15, 1993
    Date of Patent: July 12, 1994
    Assignee: Vaportek, Inc.
    Inventors: John D. Bryson, John D. Bryson, Jr.
  • Patent number: 5326504
    Abstract: An ordered packing comprising elongated elements having lengthwise extending surfaces configured to be wet by a liquid phase to thereby form a film thereon. The elongated elements are packed together into a structure such that in each of a plurality of parallel planes, extending in two orthogonal directions, the elongated elements cross one another to form lattices having openings defined between the crossings of the elements. The elongated elements are interleaved within the structure such that elongated elements pass through the openings in the lattices and form repeating clusters of four of the elongated elements in a pyramid-like arrangement. Each of the clusters of the elongated elements and their lengthwise extending surfaces provide pathways for the film to descend through the structure. The structure has an open area for a vapor phase to ascend through the structure and contact the liquid phase.
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: July 5, 1994
    Assignee: The BOC Group, Inc.
    Inventor: Robert G. Gates
  • Patent number: 5326503
    Abstract: A latticed packing member for gas-liquid contacting system having an odd number of plural longitudinal strips and an even number of plural lateral strips, the latter number being one less the number of the longitudinal strips. These strips are crossed at right angles on their sides, and the bottom thereof is chamfered. At least one projected area is provided on the strips, on which a notch for engagement is formed. At the center of lattice sections other than sections provided with the projected areas, there is provided a reinforcement with a flat bottom. The longitudinal strip located at the center of the member coincides with the axial center line X of the lateral strip in the direction A of its length, and the axial center line Y of the longitudinal strip in the direction B of its length is formed by the lateral strip which passes the center of the lateral lattice section located at the center. The axial center lines X and Y intersect with each other at the center.
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: July 5, 1994
    Assignees: Mitsubishi Jukogyo Kabushiki Kaisha, Kabushiki Kaisha Meiji Gomu Kasei
    Inventors: Koichiro Iwashita, Takakazu Sunada, Makiichi Ishihara, Sunao Ushio, Kouichi Shinohara, Takami Yamada
  • Patent number: 5322645
    Abstract: A cap and method for limiting the range of adjustment of a fuel flow metering valve in a carburetor. The cap has a body with an arm projecting generally radially outwardly therefrom to abut against a stop carried by the carburetor to limit valve rotation and a passage therein for telescopically axially receiving the head end of a shank of the valve. Portions within the passage enable the cap to be retained in the shank of the valve in a freely rotating first position during assembly and arm orientation, and in a second position securing the cap to the valve to limit adjustment and maintain emissions calibration. Preferably, the cap may also be moved to a third position to releasably drivingly engage the valve to perform fuel flow adjustment before securing the cap to the valve. The cap can also be prepositioned angularly relative to an adjusted position of the valve before it is moved to its second position on the valve to limit the extent of subsequent adjustment of the valve.
    Type: Grant
    Filed: August 13, 1993
    Date of Patent: June 21, 1994
    Assignee: Walbro Corporation
    Inventors: Steven L. Hammett, George M. Pattullo, Donald C. Ross, David L. Speirs, James E. Van Allen, Mark S. Swanson
  • Patent number: 5322646
    Abstract: A system for humidifying air while generating a tornado-like air flow pattern highlighted by water aerosol is described. The system includes air flow devices which generate a circular tornado-like air flow, a water aerosol generator, and a means of injecting the water aerosol into the circular air pattern to produce a visible tornado. Air is blown parallel to and within two opposing parabolic plates, creating a circular flow pattern. Air is exhausted out the top of the device at the center point between the plates, creating an updraft. Water aerosol wafts into the bottom of the circular air flow, gets caught in the upwardly spinning air flow, and exits through the top of the device. A model of a tornado is created and maintained. Also, the water aerosol humidifies the air in the room as it exits the device.
    Type: Grant
    Filed: August 3, 1993
    Date of Patent: June 21, 1994
    Assignee: Amazing Things
    Inventors: Lloyd F. Wright, Mark A. Logan
  • Patent number: 5320651
    Abstract: A gas and liquid contact body for use in a gas and liquid contact apparatus in which gas and liquid flow in cross-flow relationship to each other includes a plurality of corrugated sheets having opposed first and second edges which are facially opposed in substantially parallel relationship to one another to define a plurality of intersecting and intercommunicating passages allowing the passage of gas and liquid therethrough. In one embodiment, the first edges of the sheets are located generally in the same plane and define a gas inlet edge of the contact body. Alternate sheets in the body are narrower from their first to their second edges than the remainder of the sheets in the body. The second edges of these alternate sheets define an air outlet portion in the body and spaces between the wider adjacent sheets at said outlet portion.
    Type: Grant
    Filed: June 28, 1993
    Date of Patent: June 14, 1994
    Assignee: Munters Corporation
    Inventor: Larry E. Drummond
  • Patent number: 5320652
    Abstract: A liquid-vapor separator for two-phase fluids in general and specifically a steam-water separator in a steam drum of a steam generator includes axial or radial spinner blades to create a centrifugal motion which causes liquid to be forced outward against the outer wall and the vapor to be concentrated in the center. Conical extraction skimmers systematically extract and discharge the liquid outwardly and downwardly through the side walls such that it impinges on an optional discharge screen surrounding the skimmers. The vapor flows out the top through a central opening and enters a secondary separator packed with crimped wire mesh encased in a perforated enclosure. The conical extraction skimmers include an outwardly protruding rim portion which forms an enlarged annular chamber between the rim and the underlying conical extraction skimmer. This forms a converging-diverging flow path out between skimmer sections and an outwardly extending ring forms a tortuous path.
    Type: Grant
    Filed: July 12, 1993
    Date of Patent: June 14, 1994
    Assignee: Combustion Engineering, Inc.
    Inventors: H. Rodolfo Akel, John M. Banas, Brian P. DeMarey, Gary W. Gralton, Bard C. Teigen
  • Patent number: 5318732
    Abstract: The capacity of multiple downcomer type fractionation trays is increased by providing imperforate calming decks (6) which extend across the tray deck (2) surface outward from the conventional downcomer inlet opening together with vertical inlet weirs (8) attached to the outer end of the calming decks (6). The inlet weirs (8) may function as "preweirs" used in addition to the conventional inlet weir formed by the upward extension of the downcomer sidewall (4).
    Type: Grant
    Filed: December 29, 1992
    Date of Patent: June 7, 1994
    Assignee: UOP
    Inventors: Daniel R. Monkelbaan, Robert J. Miller, Michael R. Resetarits
  • Patent number: 5318731
    Abstract: In a humidifier, its humidifier body is formed as follows: A plurality of ribs 3 made of a flexible material are fixedly adhered to the inner surface 1a of a tubular film structure 1 made of a moisture permeable film 2 in such a manner that the ribs are extended in parallel with the longitudinal axis of the tubular film structure, and the tubular film structures 1 and spacer boards 4 adapted to form spaces outside the tubular film structures into which air is supplied, are alternately laid one on another. Whereby, it is provided a humidifier which is excellent in water supply characteristic, high in humidification, and low in air resistance.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: June 7, 1994
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hisao Yokoya, Kenzo Takahashi, Shigeo Makimura
  • Patent number: 5314645
    Abstract: Packing elements of the Pall ring type having improved resistance to crushing even though made from thinner gauge metal can be obtained by providing attachment means that hold overlapping ends of the ring together and resist deformation.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: May 24, 1994
    Assignee: Norton Chemical Process Products Corp.
    Inventor: Frank Rukovena
  • Patent number: 5314644
    Abstract: Means are provided for supplying a liquid surfactant solution, for supplying a gas under pressure, for mixing the liquid surfactant solution and the pressurized gas to form a liquid coarse dispersion of relatively large gas bubbles, and for receiving the liquid coarse dispersion to generate a liquid fine dispersion of relatively small micron-size gas bubbles.
    Type: Grant
    Filed: October 19, 1992
    Date of Patent: May 24, 1994
    Assignee: Virginia Polytechnic Institute and State University
    Inventors: Donald L. Michelsen, Felix Sebba
  • Patent number: 5312567
    Abstract: Complex mixing system with stages consisting of propeller mixers of high diameter ratio, where the blades are provided with flow modifying elements, whereby the energy proportions spent on dispersion of the amount of gas injected into the reactor, homogenization of the multi-phase mixtures, suspension of solid particles, etc. and the properties corresponding to the rheological properties of the gas-liquid mixtures and to the special requirements of the processes can be ensured even in extreme cases. Open channels (5) opposite to the direction of rotation are on the blades (4) of the dispersing stage (2a) of the propeller mixers (2) fixed to a common shaft, where the channels (5) are interconnected with gas inlet (7). The angle of incidence of a certain part of the blades (4) of mixing stages (2b, 2d) used for homogenization and suspension is of opposite direction and the length is shorter and/or the angle of incidence is smaller than those of the other blades.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: May 17, 1994
    Assignee: Richter Gedeon Vegyeszeti Cyar Rt.
    Inventors: Laszlo Kozma, Sandor Kovats, Bela Makadi, Laszlo Cseke, Sandor Pusztai, Mihaly Kaszas, Gyorgy Santha, Istvan Bartho, Karoly Zalai, Gyula Beszedics, Gabriella Kordik, Karoly Gergely, Miklos Feder
  • Patent number: 5312464
    Abstract: A gas and liquid contact body for use in a gas and liquid contact apparatus in which gas and liquid flow in cross-flow relationship to each other includes a plurality of corrugated sheets having opposed first and second edge which are facially opposed in substantially parallel relationship to one another to define a plurality of intersecting and intercommunicating passages allowing the passage of gas and liquid therethrough. The first edges of the sheets are located generally in the same plane and define a gas inlet edge of the contact body. Alternate sheets in the body are narrower from their first to their second edges than the remainder of the sheets in the body. The second edges of the sheets define an air outlet portion in the body wherein the second edges of the alternate sheets define spaces between the wider adjacent sheets at said outlet portion.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: May 17, 1994
    Assignee: Munters Corporation
    Inventor: George A. Gay
  • Patent number: 5312566
    Abstract: This invention is an air cleaning and/or performance enhancement device. It is made of a porous outer covering and an inside agent. The inside agent outgasses through the outside covering. The device may be placed in air filters or other convenient locations to reduce toxic emissions and modify fuel consumption.
    Type: Grant
    Filed: September 9, 1992
    Date of Patent: May 17, 1994
    Assignee: American Technologies Group, Inc.
    Inventors: Robert Carroll, David Gann, Loren Zanier, Rod L. Quinn
  • Patent number: 5308554
    Abstract: A carburetor of the slide and metering rod type is characterized by the provision of a tapered metering rod for streamlining the flow of air from the inlet end of the carburetor around the metering rod to reduce turbulence and increase air velocity by compressing the air flow. The metering rod has a wedge configuration with the forward pointed edge thereof facing in the direction of the inlet end and the side walls thereof tapering outwardly and rearwardly from the forward edge.
    Type: Grant
    Filed: April 13, 1993
    Date of Patent: May 3, 1994
    Inventor: William H. Edmonston
  • Patent number: 5304328
    Abstract: Metal strips are provided which can be bent into the shape of cylindrical packing elements of the Lessing or Pall ring type. These strips have one end bent back at an acute angle to the rest of the strip and have slots cut into the strip in the vicinity of the bend. At the opposed end tabs are provided that engage with the slots when the strip is formed into a cylinder so as to hold the ends together. Such packing elements have a much greater resistance to crushing than conventional elements and can be made of much thinner metal.
    Type: Grant
    Filed: January 27, 1993
    Date of Patent: April 19, 1994
    Assignee: Norton Chemical Process Products Corporation
    Inventor: Michael J. Dolan
  • Patent number: 5304327
    Abstract: An elongate mercaptan injection apparatus is disclosed. From the remote end, there is an external fitting for connection with a supply line of liquid mercaptan. It communicates serially with an internal check valve captured in a chamber. The check valve includes a spring and ball cooperative with a valve seat. Through the check valve, the liquid mercaptan flows into an elongate hollow tubular member which is sealed externally with a number of fittings to prevent leakage. It extends to the interior of the pipeline through a fitting which seals to the wall of the pipeline. On the interior, it connects with an elongate hollow member packed with particulate material. A number of transverse openings provide cross ventilation so that flowing natural gas is able to pass through the particulate material.
    Type: Grant
    Filed: July 13, 1992
    Date of Patent: April 19, 1994
    Assignee: Welker Engineering, Inc.
    Inventors: Brian H. Welker, Thomas S. Green, Richard O. Lee