Patents Examined by Bernard Nozick
  • Patent number: 5174944
    Abstract: An apparatus is provided for separating nitrogen gas from methanol liquid in a furnace hardening system. The furnace is housed in a building and connected by a piping system to a methanol storage tank located outside the building. The tank is capped with nitrogen to pressurize the system at high pressure and a pressure regulator reduces the pressure at the furnace. A flowmeter unit controls the flow rate. The gas separating apparatus includes a vessel having a liquid inlet and a liquid outlet in the lower end. The methanol containing nitrogen is introduced under pressure into the inlet and is discharged from the outlet at a lesser flow rate to provide an accumulation of the liquid in the vessel, while the nitrogen gas is released from the liquid and collects in the headspace of the vessel. A float is disposed in the vessel and floats on the accumulated liquid in the lower end of the vessel.
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: December 29, 1992
    Assignee: Waukee Engineering Company Inc.
    Inventor: Norman G. LeBeck
  • Patent number: 5174799
    Abstract: A reactor in which a furnace section, a heat recovery section and a horizontal cyclone separator are formed in a vessel. A bed of solid particulate material including fuel is supported in the furnace section and air is introduced into the bed at a velocity sufficient to fluidize same and support the combustion or gasification of the fuel. A mixture of air, the gaseous products of combustion and the particles entrained by the air are directed to the vortex chamber of the cyclone separator through an inlet duct. The helical end of the vortex chamber forces the mixture to spirally circulate within the chamber, where the solid particles of the mixture are separated by centrifugal forces. A central tube extends partially within the vortex chamber and receives the cleaned gases from the low pressure center of the chamber. The portion of the tube behind the helical end of the vortex chamber opens directly into the heat recovery area for passing the clean gases thereto.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: December 29, 1992
    Assignee: Foster Wheeler Energy Corporation
    Inventor: Juan A. Garcia-Mallol
  • Patent number: 5175433
    Abstract: A monodisperse aerosol generator forms a stable jet of liquid at a velocity allowing columnar breakup into droplets of uniform size and spacing. To prevent degradation of the monodisperse aerosol, it is disposed by entrainment in a high velocity gaseous stream. To provide an interface for direct injection onto a particle collection device or into an infrared or Raman spectrometer or to interface a liquid chromatograph with a particle collection device or an infrared or Raman spectrometer, the generator is followed by a desolvation chamber operation at about atmospheric pressure and a multistage pressure reducer which evacuates solvent vapor and gaseous medium to form a high momentum, solvent-depleted solute aerosol beam which is input into the infrared or Raman spectrometer.
    Type: Grant
    Filed: May 4, 1990
    Date of Patent: December 29, 1992
    Assignee: Georgia Tech Research Corporation
    Inventors: Richard F. Browner, James A. de Haseth
  • Patent number: 5174797
    Abstract: A fiber collector collects fiber from a moving airflow having entrained fibers. A primary plenum has a fiber collection zone in its lower portion. Adjacent screens downstream of the primary plenum are slanted with respect to the primary plenum so that fiber held by the screens will be gravitationally attracted to the fiber collection zone. Secondary plenums downstream of the screens have independently openable air inlets and independently closable passages. A fan downstream of the passages pulls air through the primary plenum, screens, secondary plenums and passages. Pressure sensors upstream of the screens and downstream of the passages provide pressure sense data to a control means which closes the passages for one of the secondary plenums and opens the independently openable air inlet of the same secondary plenum when the pressure difference between the first and second pressure sensors exceeds a desired range.
    Type: Grant
    Filed: September 12, 1991
    Date of Patent: December 29, 1992
    Assignee: Industrial Air, Inc.
    Inventors: Randall L. Yow, Sr., Gary Jansen
  • Patent number: 5173092
    Abstract: A process and system for separating and removing volatile organic compounds (VOCs) from groundwater, where said groundwater is polluted by immiscible liquid floating on the water table and by solutes within the water. The process includes pumping the contaminated water through a separator and low pressure tank assembly, that separates silt, sand, and liquid VOCs from the water. The water is pumped through an air stripper to remove the dissolved volatiles from the water. The recovered liquid VOCs from the pressure tank are suitable for processing or reuse. The volatiles liberated from the water in the air stripper are released either to the atmosphere or routed to pollution abatement devices as required by environmental rules. The decontaminated water is released to a sewer system or to the environment.
    Type: Grant
    Filed: December 29, 1990
    Date of Patent: December 22, 1992
    Assignee: Hydrocarbon Recovery Equipment, Inc.
    Inventor: Tucker D. Rudder
  • Patent number: 5173094
    Abstract: A filtration system for removing gaseous and particulate contaminants from a contaminated structure includes a positive pressure source for raising the static pressure within the contaminated structure above an ambient pressure; and a decontamination tunnel which seals around an outlet opening in the contaminated structure. The tunnel contains and channels the contaminates as they exit the contaminated structure. The tunnel includes an outer, gas impermeable skin; removable frames which support the skin; filters which are mounted within the tunnel; and an exhaust duct for channelling filtered air from the tunnel. In a first embodiment, the filters may be wetted with a wetting or neutralizing agent before they are installed within the tunnel; or alternatively, the filters may be dry filters impregnated with dry chemicals that may neutralize or dilute the exhausted contaminates.
    Type: Grant
    Filed: April 30, 1991
    Date of Patent: December 22, 1992
    Inventor: Timothy S. Brady
  • Patent number: 5173093
    Abstract: This invention pertains to a single spray level within a flue gas desulfurization absorber tower. This spray level incorporates multiple headers with each header having a plurality of feeder lines connected thereto. These feeder lines extend within the flue gas flow path in an alternating and staggered configuration within the same plane. A series of nozzles are secured to each feeder line to spray a mixture onto the flue gas. Spare capacity, if required, is incorporated into the spray level.
    Type: Grant
    Filed: July 26, 1991
    Date of Patent: December 22, 1992
    Assignee: The Babcock & Wilcox Company
    Inventors: Dennis W. Johnson, Paul J. Lieb
  • Patent number: 5171104
    Abstract: An arrangement for treating a gas from a contaminated ground region in situ has a shaft wall which is at least partially gas-permeable and forms a shaft in a gas-tightly closed ground region. The shaft wall has a gas-impermeable shaft portion spaced from a shaft opening and two gas-permeable wall portions which surround the gas-impermeable wall portion. Gas transporting means produces a gas circulating flow in the shaft and in the ground region. At least one device for influences the intensity of the gas flow in the shaft in dependence on the density of the ground region for producing and maintaining a laminar gas flow in the ground region. At least one element provided in the region of the gas-permeable wall operates for changing a composition of the gas flow.
    Type: Grant
    Filed: May 6, 1991
    Date of Patent: December 15, 1992
    Assignee: IEG Industrie Engineering GmbH
    Inventor: Bruno Bernhardt
  • Patent number: 5171342
    Abstract: A filter insert 10 for an air filter for internal combustion engines, compressors or other air-aspirating machinery, which filter insert consists of a filter ring 13 formed of pleated filter paper 19 through which air flows radially and an additional filter element disposed concentric to the filter ring 13, which additional filter element is a fleece 16 formed of nonwoven synthetic fiber, optionally treated with an oil which acts as an adherent for dust.
    Type: Grant
    Filed: October 1, 1991
    Date of Patent: December 15, 1992
    Assignee: Filterwerk Mann & Hummel GmbH
    Inventor: Walter Trefz
  • Patent number: 5171334
    Abstract: A diffused air volatile organic compound stripping system including a complete pumping system, a sequential stripping system, a free-petroleum-product separation system, and a free-product collection system with automatic controls, all packaged into a trailerized, easy to install and operate system. The stripping portion of the system is composed of three vertical stripping tanks, step-phase plumbed together to allow gravity feed from the first tank to the last. Each of the stripping tanks includes an internal concentrator tube into which is inserted an air diffuser designed to produce thousands of tiny air bubbles. The ground water (and free-product if any) is recovered from an on-site ground-water recovery well and pumped into a baffled separator tank. The upper free product fraction flows to a free product receptor fitted with an overflow shut-off switch.
    Type: Grant
    Filed: July 8, 1991
    Date of Patent: December 15, 1992
    Inventor: Thomas W. Kabis
  • Patent number: 5171338
    Abstract: An installation for filtering air comprises a plurality of cells in parallel and each including an inlet, at least one filter, and an outlet, the inlets being connected to an inlet manifold, and means being provided for causing the gas to flow through said cells. The installation further comprises: a first shutter in each inlet; and dust-removal manifold connected to the bottom of each cell via a dust-removal passage in which a second shutter is provided; and means for establishing a backflow of gas through each cell. For filtering, the first shutter is open and the second shutter is closed. For unclogging the first shutter is closed and the second shutter is open, and the backflow means unclog particles and remove them.
    Type: Grant
    Filed: July 8, 1991
    Date of Patent: December 15, 1992
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Jacques Baert
  • Patent number: 5171090
    Abstract: A device for dispersing a substance, for example, dry particulate material, in a liquid is disclosed having a funnel eductor for distributing and carrying the substance in a flow stream and a cyclonic dispersal eductor for inducing the flow stream and introducing the flow stream having the particulate matter therein into a spirally moving liquid flow stream. The dispersal eductor preferably includes first and second liquid input ports defining first and second dispersal stages, respectively, with the substance, in liquid, output from the first stage being introduced into the liquid being input through the second liquid port at the second stage, each port being positioned so that a spiralling liquid flow is imparted, liquid flow at the second stage being counter-rotational relaive to liquid flow in the first stage.
    Type: Grant
    Filed: March 5, 1991
    Date of Patent: December 15, 1992
    Inventor: Reginald A. Wiemers
  • Patent number: 5171337
    Abstract: A filter unit (10) for removing particulates from exhaust gases for example from a diesel engine, includes several filter elements (24) arranged so the gas flows through them are in parallel and that no individual element carries more than a fifth of the total flow. Each element (24) comprises a tubular heating element (50) of high voidage electrically conducting material, with a secondary filter layer (52) adjacent to its upstream surface, and with means (53-63) to ensure the gas flow and particulate deposition are substantially uniform over the upstream surface. At intervals the heating elements (50) are electrically energized, in turn, to burn off deposited particulates. At any one time only a subset of the elements (24) is energized through which at that time no more than a fifth of the total gas flow passes. The unit (10) might have thirteen such elements (24), energized one at a time.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: December 15, 1992
    Assignee: United Kingdom Atomic Energy Authority
    Inventor: James F. Pollock
  • Patent number: 5171341
    Abstract: An efficient, economical, compact diesel particulate filter comprising a casing with a plurality of concentric, spaced, perforated, supported, substantially rigid tubes substantially filling the casing radially, wherein the perforated surface of each tube is covered by a filtering element comprising substantially helically wound inorganic yarn, wherein each space between tubes is blocked at only one end of the tubes so that exhaust entering an unblocked space at one end of the casing passes radially inwardly and outwardly through filtering elements before exiting through an unblocked space at the other end of the casing.
    Type: Grant
    Filed: October 30, 1991
    Date of Patent: December 15, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Richard P. Merry
  • Patent number: 5169414
    Abstract: An apparatus for adsorptive filtering of contaminants from a gaseous stream is provided. The apparatus includes a frame member. The frame includes a base member which is rotatable about an axis. A plurality of walls are attached to the base member and extend axially therefrom to a top member for providing a plurality of circumferential segment areas. The walls include a radially inner side for defining an axially extending inner chamber and a radially outer side for defining an outer periphery. A plurality of adsorption elements, each having an axial first side and an axial second side, are axially spaced in each of said circumferential segment areas. A duct or the like radially directs contaminated air into at least an entire one of the segment areas.
    Type: Grant
    Filed: June 6, 1991
    Date of Patent: December 8, 1992
    Assignee: Flakt, Inc.
    Inventors: Nicholas J. Panzica, Lennart Gustavsson, Leif Josefsson, Hans O. Lannefors
  • Patent number: 5169415
    Abstract: A system and method of separating the gaseous components of air to provide an oxygen-enriched gas stream and a nitrogen-enriched gas stream are disclosed. The on-board gas generation system and method generate an oxygen-enriched stream including substantially pure oxygen, such as about 99% or greater oxygen, and, if desired, having a pressure of up to about 10,000 pounds per square inch, thereby eliminating the need for a separate compressor to compress the oxygen-enriched gas stream. The on-board oxygen generation system and method are used in enclosed vehicles, like aircraft and military tanks, to supply substantially pure oxygen for breathing, especially at high altitudes and in contaminated atmospheres.
    Type: Grant
    Filed: August 31, 1990
    Date of Patent: December 8, 1992
    Assignee: Sundstrand Corporation
    Inventors: Belinda F. Roettger, Richard W. Reynolds, Patrick D. Curran
  • Patent number: 5167678
    Abstract: A pump for pumping an air containing medium includes rear vanes (11) on the propeller back plate of the pump and a back ball arranged so that a radially widening space is created between the impeller back plate and the rear wall for guiding the flow of the medium, generated by the combined effect of forces with different directions and different intensities directed at the medium in the spaces between the rear vanes, past gas discharge opening (12) in the rear wall of the pump or for retarding the flow thereby preventing the flow from entering the gas discharge opening (12).
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: December 1, 1992
    Assignee: A. Ahlstrom Corporation
    Inventors: Jorma Elonen, Jukka Timperi, Reijo Vesala, Vesa Vikman
  • Patent number: 5167683
    Abstract: An air intake filter for the internal combustion engine of a motor vehicle in which a substantially cylindrical housing contains an annular filter insert through which the air flows radially from the outside to the inside. At one end of the housing an end opening of the filter insert sealingly engages a tubular projection which communicates with the clean air outlet so that the filter insert is centered within the housing. At its opposite end, the filter insert is closed by a cover and is provided with fastening elements which engage in the junction between the housing and the cover, so that the fastening of the cover to the housing simultaneously serves to axially and radially secure the filter insert in place. Alternatively, the cylindrical housing may be formed of two, semicylindrical half-shells, and the filter insert may be provided with an annular bead which mates with a corresponding indentation in the housing to assure proper installation of the filter insert.
    Type: Grant
    Filed: August 6, 1991
    Date of Patent: December 1, 1992
    Assignee: Filterwerk Mann & Hummel GmbH
    Inventors: Bernhard Behrendt, Heinz Benzler, Volker Ernst
  • Patent number: 5164209
    Abstract: A toggle type mold clamping system is used for a vertical injection molding machine, including a toggle link mechanism. The toggle link mechanism has a pair of toggle rods (7A, 7B), a pair of toggle arms (9A, 9B) in the shape of a sideways V, and drive means (13A, 13B, 14, 15). Opposite ends of the toggle rods are pivotally coupled to an intermediate panel 2 and one end each of the toggle arms, respectively. At bends thereof, the toggle arms are pivotally coupled to a lower panel. The drive means is coupled to the lower ends of the toggle arms. The toggle arms are operated by the drive means to open and clamp molds. With this arrangement, the driving force can be effectively used to open and clamp the molds, thereby reducing the size of the drive means, and space in the lateral direction.
    Type: Grant
    Filed: November 19, 1991
    Date of Patent: November 17, 1992
    Assignee: Okuma Corporation
    Inventor: Tomiyasu Goto
  • Patent number: 5163985
    Abstract: A movable industrial dust collector comprises mainly a base having a plurality of casters and a column provided with a columnar hole. The base further comprises a support set holding thereon a suction set communicating with the columnar hole of the base by means of a suction hose. A filtration set disposed on the suction set is provided with a filtration bag permitting the air drawn into the dust collector to be released and with a dust bag for use in depositing the dust and other unwanted objects drawn into the dust collector.
    Type: Grant
    Filed: January 30, 1992
    Date of Patent: November 17, 1992
    Inventor: Peter Chen