Means Separating Or Dissolving A Material Constituent Patents (Class 422/255)
  • Patent number: 6210907
    Abstract: The present invention relates to a measuring device which comprises electrodes fabricated on porous membrane substrate in which the sample migrates chromatographically; and the method of quantifying material in the sample by using the device. The sample material for measuring can be quantified by the measuring device of this invention, which is consists pretreatment bands in the lower part of porous membrane substrate and electrodes in the upper prt of pretreatment bands, by the procedure as foolows: The sample material for measuring is chromatographically migrated in the porous membrane substrate by applying the sample on the lower part of the porous membrane substrate; and then the changes of electric signal by the material at the electrode are measured to quantify the material.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: April 3, 2001
    Assignee: Samduck International Corporation
    Inventor: Geun-Sig Cha
  • Patent number: 6197836
    Abstract: The invention relates to a process and an apparatus for preparing active ingredient dispersions, wherein an active ingredient is dissolved in a fluid gas, the fluid gas loaded with active ingredient is essentially completely dissolved in a liquid and is decompressed, and the gas is separated from the liquid loaded with active ingredient.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: March 6, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Riede, Werner Göbel, Christian Lockemann
  • Patent number: 6183704
    Abstract: A salt platform (400) is disclosed which incorporates a top member (402), a bottom member (404) and a spacing member (406) that spaces the top and bottom members a pre-determined vertical distance apart. A series of bracing member assemblies (408) are connected between the top member and bottom member to provide support for the salt platform. The top surface of the top member (402) and top portions of the bracing member assemblies (408) lie in a single plane (432) to support a salt grid.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: February 6, 2001
    Inventor: Donald B. Peddicord
  • Patent number: 6150181
    Abstract: The invention relates to a process for producing ferrofluid-forming magnetic particles substituted by DMSA (FFSH) that can be covalently coupled, directly or through a difunctional reactant, to an effector, which process comprises combining DMSA with ferrofluid-forming magnetic particles to form FFSS particles having disulfide bonds, and reducing the disulfide bonds of the FFSS at basic pH to form FFSH. The invention includes a composition comprising such FFSH magnetic particles. The invention also relates to a method in which FFSH magnetic particles are incubated with an effector comprising at least one functional group which forms an S--S, C--S, C--C, or C--N bond with DMSA, so that a covalent effector-FFSH complex is formed. The invention further includes a method for separating and/or distinguishing between molecules or cells having a ligand that forms an affinity complex with an effector-FFSH particle of the invention, and those molecules or cells that do not have such a ligand.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: November 21, 2000
    Assignee: Universite Pierre et Marie Curie
    Inventors: Avraham Halbreich, Domagoj Sabolovic, Claude Sestier, Danielle Geldwerth, Jean-Noel Pons, Jacky Roger
  • Patent number: 6086732
    Abstract: A flock separating apparatus, has an electrolytic cell (2) fitted with iron electrodes and a separating tank (3), wherein the flock is carried upwards by a hydrogen gas produced in electrolysis. The separating tank (3) has a substantially vertical pipe having a length which is at least 10 times, preferably at least 15-20 times more than its diameter.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: July 11, 2000
    Assignee: BCDE Group Waste Management Ltd Oy
    Inventor: Hannu L. Suominen
  • Patent number: 6077484
    Abstract: A low/intermediate/high flow tablet feeder is provided for the controlled dissolution of a solid treating agent in flowing liquid, such as water or wastewater. The tablet feeder includes a bottom wall which is contoured to define first, second and third fluid flow paths which are operative at low, intermediate and high volume/height fluid flow. An adjustable sluice is provided adjacent a downstream outlet of a chamber defined by the tablet feeder, and a sectional riser can be associated with the tablet feeder for extended or below grade installations.
    Type: Grant
    Filed: April 22, 1998
    Date of Patent: June 20, 2000
    Assignee: Norwalk Wastewater Equipment Company
    Inventor: Jan D. Graves
  • Patent number: 6071483
    Abstract: A reactor vessel and an associated process for preparing a controlled-dosage chlorine dioxide solution. The vessel according to the invention comprises a hollow body inside which there are provided two chambers which have different volumes, each chamber having, in an upper region, an opening which is closed by a removable plug and the chambers are mutually connected by a substantially horizontal duct with openings located in a region which is spaced upward with respect to the bottom of the two cited chambers. The vessel according to the present invention is particularly suitable for preparing a disinfectant and highly pure chlorine dioxide solution, minimizing the risk of developing noxious gases.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: June 6, 2000
    Inventor: Mauro Pastore
  • Patent number: 6017698
    Abstract: Subject matter of the invention is a method of binding a biological material to a solid phase by providing a sample liquid containing the biological material in a sample vessel (A) having an inner contour (A17); then a hollow body (C) which has a contour (C12) that matches the inner contour (A17) is introduced into the sample vessel (A) while being closed with respect to the sample vessel by means of a porous matrix (C11); the sample liquid can enter the structural form (C) through the porous matrix (C11). This method is easy to automate and reduces the generation of aerosols.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: January 25, 2000
    Assignee: Roche Diagnostics GmbH
    Inventors: Gerhard Bienhaus, Michael Fritz, Jurgen Schwab, Edda Geisler, Herbert Harttig, Heinz Macho
  • Patent number: 6011073
    Abstract: A system for converting light hydrocarbons to heavier hydrocarbons having a synthesis gas production unit and a hydrocarbon synthesis unit. For one application the synthesis gas production unit includes a turbine unit with a compression section, an autothermal reformer fluidly coupled to the compression section for producing synthesis gas and combusting at least a portion the gas therein, and an expansion section of the turbine unit fluidly coupled to the autothermal reformer for developing energy from the output of the autothermal reformer. A water separation unit is preferably fluidly coupled to the synthesis gas production unit for removing water from the synthesis gas. The water is directed to an oxygen/hydrogen separator to produce oxygen and hydrogen. Another water separation unit may also be coupled to the output from the hydrocarbon synthesis unit for removing water from the heavier hydrocarbons and directing the water to the oxygen/hydrogen separator.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: January 4, 2000
    Assignee: Syntroleum Corporation
    Inventors: Mark A. Agee, Larry J. Weick
  • Patent number: 5984541
    Abstract: A resist processing system comprising a resist processing chamber 11, an air filter 14 and an air intake unit 15 for introducing air into the processing chamber 11 through the air filter 14, the air filter 14 having a housing 18 and a diffusion scrubber 19 separating a first space and a second space within the housing 18, the first space having a liquid inlet port 21A and a liquid outlet port 21B for passing a liquid therethrough, the second space having an air inlet port 20A and an air outlet port 20B for passing the air from the air intake unit therethrough.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: November 16, 1999
    Assignee: NEC Corporation
    Inventor: Hiroshi Yoshino
  • Patent number: 5962247
    Abstract: An assay device comprising a centrifugation tube and, as a sliding fit therein, a less deep inner tube whose base has one or more apertures sufficiently large to allow the passage of particles. This device can be used in an assay for microorganisms in a liquid sample containing fatty material, which comprises centrifuging the sample and a clearing agent in the device, removing the inner tube containing the fatty material, removing at least substantially all of the liquid supernatant in the centrifugation tube, and determining the presence of ATP in the sedimented pellet.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: October 5, 1999
    Assignee: Celsis International PLC
    Inventors: Nicholas Peter Martin Foote, David Nelson
  • Patent number: 5932171
    Abstract: An apparatus (A) for sterilizing medical instruments and other articles includes a tray (12) with an article receiving area (14). An article to be microbially decontaminated is positioned in the receiving area (14) and a microbe blocking lid (10) is closed. A water electrolysis apparatus (30) receives water, splits the water into two separate streams that pass respectively through an anode chamber (34) and a cathode chamber (36), and exposes the streams to an electric field that results in the production of a catholyte solution for cleaning and an anolyte solution for sterilization. The anolyte and catholyte are selectively circulated through the article receiving area (14) by a pump (66) to clean and microbially decontaminate the external surfaces and internal passages of an article located therein. The anolyte or deactivated anolyte provides a sterile rinse solution. A reagent dispensing well (60) receives an ampule (80) or the like.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: August 3, 1999
    Assignee: Steris Corporation
    Inventor: Paul S. Malchesky
  • Patent number: 5908041
    Abstract: A method and apparatus for cleaning a spray stream nozzle employed in dispensing upon a photoexposed blanket photoresist layer formed over a semiconductor substrate a photoresist developer solution. There is first provided a spray stream nozzle having a minimum of one aperture formed therein. There is then provided through the spray stream nozzle a volume of a photoresist developer solution sufficient to develop a photoexposed blanket photoresist layer formed over a semiconductor substrate placed beneath the spray stream nozzle. Finally, there is provided then through the spray stream nozzle a volume of a solvent which is not susceptible to clogging the spray stream nozzle.
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: June 1, 1999
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Gey-Fung Wei, Tsun-Ching Lin, Jo-Fei Wang, Hsiao-Lan Yeh
  • Patent number: 5891403
    Abstract: The present invention features a portable waste disposal unit designed to receive expanded polystyrene or similar polymeric waste. Waste is loaded into a waste reception chamber via a loading door. Once the loading door is closed and locked, a mechanical ram forces the waste charge downward into a removable tank containing a layer of a solvent such as perchloroethylene and an upper layer of water. The waste is dissolved in the solvent and stored until the tank is either removed or drained and the contents shipped to an appropriate waste recovery facility. The small size of the portable waste disposal unit makes it ideal for location near the source of the waste to be recycled. Significant compacting of wastes such as expanded polystyrene may be realized by dissolving the waste in a solvent such as perchloroethylene. In addition, the first step of a recycling process is effectively accomplished within the inventive unit.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: April 6, 1999
    Inventors: Berkley C. Badger, Kevin E. Hissem
  • Patent number: 5888359
    Abstract: A flock separating apparatus, has an electrolytic cell (2) fitted with iron electrode and a separating tank (3), wherein the flock is carried upwards by a hydrogen gas produced in electrolysis. The separating tank (3) has a substantially vertical pipe having a length which is at least 10 times, preferably at least 15-20 times more than its diameter.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: March 30, 1999
    Assignee: HLS-Elektroautomatiikka OY
    Inventor: Hannu L. Suominen
  • Patent number: 5882589
    Abstract: A device for cleaning, disinfecting, and/or drying an endoscope consists of a basin supported on a base. The basin forms a channel that defines a teardrop shape. The device includes a lid that sealingly engages the basin. During operation, the endoscope to be cleaned is completely immersed in cleaning solution in the basin. The basin includes injectors arranged so as to create a rotating flow of cleaning liquid and sterile rinsing water or recycled drying air within the channel. The vessel also includes injection nozzles that attach to various inlets of the endoscope to inject products at specified pressures and to continuously test the tightness of the seal.
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: March 16, 1999
    Assignee: Leon Shipper
    Inventor: Bernard Mariotti
  • Patent number: 5866086
    Abstract: A device for the sterilization and encapsulation of bio-hazardous materials, especially including needles and syringes, which provides a sealable container to receive the materials and a rotating carousel to successively position the container for processing, a heat device to raise the temperature within the container to sterilize the contents and melt any plastic material, a compactor to crush the container into a smaller volume, and an ejector to remove the compacted container from the carousel.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: February 2, 1999
    Assignee: Imagination Medical, Inc.
    Inventor: Richard Yelvington
  • Patent number: 5849597
    Abstract: A treatment apparatus for analyzing the impurities in silicic material with high precision, includes a container having an inner space in which at least one analysis sample container and a sample decomposing solution are accommodated. The container is divided into a lid body and a lower body, each of the lid body and the lower body being opened at the division surface side thereof to form an open end and being closed at the surface side opposite to the division surface side to form a close end thereof. The inner peripheral surface of the open end of the lower body is formed in a stepwise shape so that the analysis sample container is disposed to be spaced from the surface of the decomposing solution which is stocked in the lower body, and the inner peripheral surfaces of the lid body and the lower body are smoothly continuously threadily engaged with each other through abutment faces thereof to keep the container in an appropriate hermetic level.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: December 15, 1998
    Assignee: Toshiba Ceramics Co., Ltd.
    Inventors: Fumio Tokuoka, Kazuhiko Shimanuki
  • Patent number: 5766962
    Abstract: Improved devices for collecting and analyzing samples of aqueous solutions, body fluids, sewage or fecal matter to be used in detecting microbes and microbial byproducts. A device in accordance with the invention comprises a body including an internal channel having an entryway, a solute chamber connected to the entryway, a solute-adding mechanism operatively connected to the solute chamber, a window in the body that allows viewing of a portion of the channel, and an aperture in the body that opens to the channel; a bendable tang connected to the body; and a sample collection unit attached to the tang.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: June 16, 1998
    Assignee: Universal Healthwatch, Inc.
    Inventors: Mary Ann Childs, Mohammed A. Chowdhury, David Bernstein, Gregory K. Shipman, Erick Gray
  • Patent number: 5750658
    Abstract: An instrumentality for promulgating the cryoprecipitation of fibrinogen from a blood product. The instrumentality contemplates a container for the blood product, an apparatus for creating the fibrinogen within the container and a method of manipulating the container within the apparatus and subsequently after fibrinogen has been formed. The apparatus includes a receiver within which the container is supported, a motion transfer device for the receiver to impart motion to the container while simultaneously subjecting the container to a temperature differential to cause heat transfer. The motion imparted to the container results in a thin coating of the blood product being disposed on an interior surface of the container which, in turn, is exposed to a heat transfer fluid through the wall of the container. Successive coatings placed on an interior of the container are timed such that each coating is placed on a previous coating that has changed phase.
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: May 12, 1998
    Assignee: ThermoGenesis Corp.
    Inventors: Philip H. Coelho, Terry Wolf
  • Patent number: 5745835
    Abstract: A process and apparatus for dissolving a mixed oxide or mixture of oxides of uranium and plutonium. The powder is added with nitric acid to a chamber to dissolve uranium oxide, and the solution is circulated through a circuit of the apparatus with a portion of the solution passing through a filter. At least a portion of the filtered solution containing dissolved uranium oxide is removed from the apparatus, while returning non-filtered circulating solution containing non-dissolved plutonium oxide to the chamber. The removal of solution is then terminated, a monovalent silver salt is added and divalent silver is generated in-situ by electrolysis, the divalent silver causing dissolution of the plutonium oxide.
    Type: Grant
    Filed: September 6, 1996
    Date of Patent: April 28, 1998
    Assignee: Compagnie Generale Des Matieres Nucleaires
    Inventors: Marie-Helene Mouliney, Claude Bernard
  • Patent number: 5716429
    Abstract: Disclosed is an improved method for separating impurities from a hot synthesis gas mixture which is obtained in the preparation of melamine and urea. The improved separation is achieved by use of filters made of sintered, essentially pure chromium, molybdenum, tungsten, or a mixture of any of these elements.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: February 10, 1998
    Assignee: DSM N.V.
    Inventors: Julius G. T. Van Wijck, Cornelis G. M. Van De Moesdijk, Johan J. G. Thoelen
  • Patent number: 5704276
    Abstract: A system for continuously de-activating enzymes, sterilizing or deodorizing a liquid material such as liquid foodstuff or liquid medicine with a supercritical fluid of carbon dioxide. The system includes the following 1) a liquid material is continuously supplied from an inlet at a bottom of a processing tank; 2) micro-particles of the supercritical fluid of the carbon dioxide are formed so that a density of the supercritical fluid is smaller than that of the liquid material; 3) the micro-particles of the supercritical fluid are injected continuously into the liquid material from another inlet at the bottom of the processing tank; and 4) the liquid material and the supercritical fluid are separated into different phases at the top of the processing tank and are taken out of the processing tank separately.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: January 6, 1998
    Assignees: Shimadzu Corporation, Nippon Tansan Company, Limited
    Inventors: Yutaka Osajima, Mituya Shimoda, Tamotu Kawano, Kunihiko Okubo
  • Patent number: 5578201
    Abstract: A reusable apparatus for multiphase, multistage countercurrent liquid separation is presented. The apparatus is particular useful in progressive multistage separation of target microorganisms from background organisms and materials with precise transfer, air exclusion, homogeneous mixing, isolation from the ambient atmosphere, in the absence of valves and at ow cost. The structure has at least one chamber in which a piston-like sliding bottom is sealingly moved or braked and includes internal structure for mixing, preferably a magnetic-stainless steel ball which can be reciprocated from the outside to mix the liquid contents. Motion of the bottom is limited by stops. A number of ways to actuate the apparatus are taught.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: November 26, 1996
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Charles F. Collier, Brian A. Deane, William E. Feathers, Robert A. King, Alexander D. Kopatsis, Thomas P. Ladisch, Peter M. Mrozinski, Norman P. Pih
  • Patent number: 5520885
    Abstract: An instrumentality for promulgating the cryoprecipitation of fibrinogen from a blood product. The instrumentality contemplates a container for the blood product, an apparatus for creating the fibrinogen within the container and a method of manipulating the container within the apparatus and subsequently after fibrinogen has been formed. The apparatus includes a receiver within which the container is supported, a motion transfer device for the receiver to impart motion to the container while simultaneously subjecting the container to a temperature differential to cause heat transfer. The motion imparted to the container results in a thin coating of the blood product being disposed on an interior surface of the container which, in turn, is exposed to a heat transfer fluid through the wall of the container. Successive coatings placed on an interior of the container are timed such that each coating is placed on a previous coating that has changed phase.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: May 28, 1996
    Assignee: ThermoGenesis Corporation
    Inventors: Philip H. Coelho, Terry Wolf
  • Patent number: 5458850
    Abstract: A method and an apparatus reduces particles in exhaust gases of an internal combustion engine by passing the exhaust gases through a microwave energy field in a resonator for applying energy and burning the particles. In order to improve the application of energy, the particles are agglomerated beforehand in a high-voltage field of an electrostatic filter.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: October 17, 1995
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventors: Bernd Krutzsch, Guenter Wenninger, Friedrich Wirbeleit, Juergen Steinwandel, Rainer Willneff, Theodor Staneff, Hans G. Mueller, Martin Stroeer, Rainer Schmidberger
  • Patent number: 5447641
    Abstract: A water distribution system is provided having a flow rate in the range of approximately 10 to 30 psi. A chlorinator is provided in line with the water distribution system to dispense a chlorine compound into the water distribution system. Calcium hypochlorite in solid form is placed into the housing of the chlorinator, the chlorinator being used to dissolve the solid calcium hypochlorite in water, dilute it to a desired concentration, and dispense it into the water distribution system at a flow rate in the range of approximately 50 to 3500 gallons/day. The chlorinator comprises a housing having a closed bottom with a fluid inlet and outlet, an open top, and a removable top cover. A flow rate control valve in the internal passage regulates the rate of flow in the internal passage providing fluid communication between the fluid inlet and the housing interior.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: September 5, 1995
    Inventor: John D. Wittig
  • Patent number: 5433928
    Abstract: In the absorption of acetylene from a crude gas mixture containing mostly C.sub.2 hydrocarbons, a substantially acetylene-free liquid C.sub.2 stream is introduced into a mixing chamber located in the column between the feed points for the crude gas mixture and the absorption agent. The C.sub.2 stream is distributed into fine droplets as it enters into accumulated absorption agent in the mixing chamber, so that foam is not formed in the absorption column. The mixing chamber can be formed of a mixing tank integrated with a plate.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: July 18, 1995
    Assignee: Linde Aktiengesellschaft
    Inventor: Peter-Clemens Haehn
  • Patent number: 5434316
    Abstract: Bisphenol-A produced by the condensation of acetone and phenol is freed of contaminant co-products by melting and crystallization in and from water. The final washing, in hot water, cleanses the crystal surfaces of remaining contaminants without the need for organic solvents.
    Type: Grant
    Filed: July 28, 1994
    Date of Patent: July 18, 1995
    Assignee: General Electric Company
    Inventor: Gaylord M. Kissinger
  • Patent number: 5380500
    Abstract: A process and apparatus for the separation of vaporous heavy metal compounds from a carrier gas wherein the heavy metal compounds are cooled and desublimed. An apparatus for carrying out this process has a melting furnace with a discharge opening for a gas/vapor mixture, which leads to a cooling device. Vaporous heavy metal compounds can be separated from a carrier gas on a large industrial scale. In addition, the apparatus for carrying out this process is easy to operate. The gas/vapor mixture is turbulently mixed immediately after the discharge from the furnace in a mixing section with cold air and is thus cooled. During this cooling, the vaporous heavy metal compounds desublime and are filtered as particles in a filter.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: January 10, 1995
    Assignee: ABB Gadelius KK
    Inventors: Michael Hirth, Joachim Jochum, Harald Jodeit, Christian Wieckert
  • Patent number: 5332547
    Abstract: A device for maintaining a controlled atmosphere within a sealed container. The device is utilized to control the oxygen and the carbon dioxide levels within the container and utilizes permeable membrane technology to control such levels. An oilless compressor is used in conjunction with the device so as to not subject the permeable membranes to the derogatory effects associated with the presence of oil within an airstream that circulates through the permeable membranes. Additionally, the compressor is preferably mounted within the sealed container so as to not subject the compressor to the effects of temperature variation and corrosive marine environments. The present device further includes an air sampling system which is used to periodically measure the oxygen and carbon dioxide levels within the container. Control logic is included with the system which is operable to adjust the oxygen and carbon dioxide levels in accordance with the particular readings obtained by the sampling system.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: July 26, 1994
    Assignee: Prolong Systems, Inc.
    Inventors: Robert J. Olson, Max D. Liston, Todd I. Harrison
  • Patent number: 5316743
    Abstract: A portable refinery including a refining vessel, a heater for providing heat to the refining vessel, dewatering devices, and a storage tank mounted on a skid which can be quickly and easily transported to a reservoir of petroleum or waste petroleum products to refine the petroleum or waste petroleum into diesel grade fuel at the reservoir.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: May 31, 1994
    Inventors: Ralph W. LeBlanc, Robert M. Bingham
  • Patent number: 5286380
    Abstract: A novel process and related apparatus for removing common contaminants from used motor oil. Propane, butane or a similar solvent is mixed with the contaminated oil to form a solution. This solution is agitated and then given time to settle thus allowing gravitational separation of asphaltic pollutants. The solution is then percolated through a columned filter to remove heavy metallic contaminants and the solvent recovered by heating the solution.
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: February 15, 1994
    Assignee: Petroleum Technology Corporation
    Inventor: Craig R. Mellen
  • Patent number: 5281401
    Abstract: A vapor dispensing system comprising a container adapted to contain a cartridge for controllably dispensing a liquid substance as a vapor, a pump for causing a flow of the vapor, conduit means for conveying the vapor flow including a first conduit communicating between the container and the pump, a second conduit communicable between the pump and the atmosphere, and means for controlling the flow of vapor.
    Type: Grant
    Filed: May 8, 1992
    Date of Patent: January 25, 1994
    Assignee: Vaportek, Inc.
    Inventor: John D. Bryson, Sr.
  • Patent number: 5277881
    Abstract: A safety apparatus has been found for controlling the release of flashing hydrogen fluoride in a hydrocarbon alkylation process. The safety apparatus comprises containment baffles enclosing major process vessels. The safety apparatus may be used in combination with a liquid onium polyhydrogen fluoride complex to substantially reduce the vapor cloud produced from a leaking process vessel.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: January 11, 1994
    Assignee: Texaco Inc.
    Inventors: George P. Partridge, Jr., Kenneth R. Comey, III, James Mudra, IV, Lee K. Gilmer
  • Patent number: 5240603
    Abstract: Methods and apparatus for extracting sample components from complex matrices using supercritical fluid as the principal extracting solvent are disclosed. The invention takes advantage of the fact that the solvent power of a supercritical fluid is stepwise settable by the parameters of density, modifier concentration, and temperature. Accordingly, methods and apparatus for extracting a component from a sample using fluid flow system having a variable and controllable flow restriction are disclosed. The methods of the present invention comprise the steps of inserting the sample into the sample container section, inputting temperature, pressure, flow rate and extraction time set points. Flow rate is controlled and system pressure regulated by the variable flow restriction. The output stream from the extraction is then expanded through a nozzle and into a trap. In certain embodiments, the trap is filled with chemically active packing material.
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: August 31, 1993
    Assignee: Hewlett-Packard Company
    Inventors: Lenore R. Frank, Christopher M. Wurm, Paul C. Dryden, Steven J. Engel, Mark A. Nickerson, Ernest H. Zerenner
  • Patent number: 5215725
    Abstract: A system for the catalytic distillation production of alkylated aromatic compounds is provided wherein the vapor pressure of the olefin may be increased while maintaining the same olefin feed rate and aromatic to olefin ratio. In one embodiment a side stream from the vapor from the second column below the catalyst and olefin feed is condensed and rerouted to the aromatic make up stream from the reflux drum. The vapor pressure of the olefin in the lower end of the first column in the catalyst bed is thus increased which increases the equilibrium concentration of the olefin in the liquid phase. In another embodiment of the invention the effective driving force for the reaction is increased by injecting the olefin at different heights within the catalyst bed. If additional olefin is injected more catalyst bed height would be required, but the additional catalyst is more that offset by the increased throughput at the same overall olefin conversion.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: June 1, 1993
    Assignees: Chemical Research & Licensing Company, ABB Lummus Crest, Inc.
    Inventor: Angel Sy
  • Patent number: 5205988
    Abstract: An apparatus for detecting gaseous aldehydes is disclosed which contains a detachable aldehyde capturing system and an aldehyde detection system. The gaseous aldehyde is passed across a semipermeable membrane with a solvent on the other side of this semipermeable membrane to dissolve and absorb the aldehydes from the gas. This system permits the concentration and detection of low concentrations of gaseous aldehyde in the sample for efficient measurement. The aldehyde dehydrogenase to produce NADH in an amount corresponding to the amount of aldehyde in the solvent. The aldehyde detection system measures the amount of NADH produced.
    Type: Grant
    Filed: April 5, 1990
    Date of Patent: April 27, 1993
    Assignees: Nihon Bunko Kogyo Kabushiki Kaisha, Toyota Jidoshi Kabushiki Kaisha
    Inventors: Toshiaki Tanaka, Kiyokatsu Hibi, Toshihiko Miyaji
  • Patent number: 5192431
    Abstract: A chemical feed-transport unit for transporting water-treating chemicals and introducing them into a water supply comprises a cylindrical tank with semispherical top and bottom supported on a metal transportable skid. The tank has a flanged top opening with removable cover and a top inlet for introduction of water for flushing and cleaning the tank. The tank has a chemical-resistant, plastic lining to prevent chemical attack to the walls thereof. The bottom of the tank has inlet and outlet openings with valves controlling water flow therethrough and an outlet opening for draining the contents during the flushing and cleaning operation. The supporting metal skid is rectangular in shape with channel members forming the sides and sheet metal plates forming the top and bottom thereof. The edge walls of the skid (walls of the channel members) have slots therein sized and spaced to receive the lifting members of a fork-lift apparatus.
    Type: Grant
    Filed: May 23, 1991
    Date of Patent: March 9, 1993
    Inventor: Norman A. Holmes
  • Patent number: 5178733
    Abstract: A method and apparatus for producing oil, bitumen, precious metals, and hydrocarbon gases from mined oil-bearing rock material, such as tar sands and soil shale. The rock is ground, preconditioned in a heated and pressurized atmosphere devoid of oxygen, and subsequently centrifuged in the presence of an oil-replacement gas to produce oil, and also any precious metal particles that are present in the oil-bearing rock material. The produced oil and precious metals are subsequently separated from each other by centrifuging.
    Type: Grant
    Filed: July 2, 1991
    Date of Patent: January 12, 1993
    Inventor: Jay P. Nielson
  • Patent number: 5167936
    Abstract: This is a portable effluent gas treating device used on non-active elements of the lead battery. It is composed of an acid-base resistant container and a cover with holes. A sponge-like filler containing alkali liquid is placed inside the container which opening top is connected with the cover and its lower part is provided with a passage communicating with the unit battery box. The present invention not only can eliminate the environment pollution of lead battery effluent gas, but also is convenient to use and to carry.
    Type: Grant
    Filed: March 10, 1991
    Date of Patent: December 1, 1992
    Inventors: Lianxiang Wang, Anchen Zheng, Shuo Zheng, Hang Zheng
  • Patent number: 5133859
    Abstract: Methods and apparatus for extracting sample components from complex matrices using supercritical carbon dioxide as the principal extracting solvent are disclosed. The present invention takes advantage of the fact that the solvent power of a supercritical fluid is stepwise settable by the parameters of density, modifier concentration, and temperature. Accordingly, methods and apparatus for extracting a component from a sample using flow system having a variable and controllable flow restriction are disclosed. The methods of the present invention comprise the steps of inserting the sample into the sample container section, inputting temperature, pressure, flow rate and extraction time setpoints. The flow rate is controlled and the system pressure regulated by the variable flow restriction.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: July 28, 1992
    Assignee: Hewlett-Packard Company
    Inventors: Lenore R. Frank, Christopher M. Wurm, Paul C. Dryden, Steven J. Engel
  • Patent number: 5094741
    Abstract: Methods and apparatus for extracting sample components from complex matrices using supercritical fluid as the principal extracting solvent are disclosed. The invention takes advantage of the fact that the solvent power of a supercritical fluid is stepwise settable by the parameters of density, modifier concentration, and temperature. Accordingly, methods and apparatus for extracting a component from a sample using fluid flow system having a variable and controllable flow restriction are disclosed. The methods of the present invention comprise the steps of inserting the sample into the sample container section, inputting temperature, pressure, flow rate and extraction time set points. Flow rate is controlled and system pressure regulated by the variable flow restriction.
    Type: Grant
    Filed: May 18, 1990
    Date of Patent: March 10, 1992
    Assignee: Hewlett-Packard Company
    Inventors: Lenore R. Frank, Christoper M. Wurm, Paul C. Dryden, Steven J. Engel, Mark A. Nickerson, Ernest Zerenner
  • Patent number: 5082558
    Abstract: Contact lenses are purified by contact with ozone in a compact system that includes an ozone generator, a purifying liquid in a lens chamber, and a pumping system for flowing liquid and gas in a way that brings ozone dissolved in a purifying liquid into contact with the lenses. In some embodiments, undissolved ozone can also contact the lenses. Several preferred arrangements are shown for accomplishing the lens purification with such an ozone disinfection system.
    Type: Grant
    Filed: August 31, 1990
    Date of Patent: January 21, 1992
    Inventor: William A. Burris
  • Patent number: 5069883
    Abstract: A liquid-solid contacting device having a plurality of chambers communicating with a cylindrical valve. The valve is situated in the central axis of the device and provides distribution and collection of a liquid to and from each of the plurality of chambers. The present invention provides an evenly distributed and adjustable pressure on sliding surfaces that substantially prevent leakage of process fluid.
    Type: Grant
    Filed: October 20, 1989
    Date of Patent: December 3, 1991
    Assignee: Progress Water Technologies Corp.
    Inventor: Philip J. Matonte
  • Patent number: 5043280
    Abstract: A sterile product containing a substance embedded in a carrier is produced by use of a supercritical gas. In one embodiment, a mixture is formed of a substance, carrier and supercritical gas such as nitrous oxide or carbon dioxide, and the supercritical gas is separated from the substance and carrier to obtain the product. In another embodiment, the supercritical gas contains the substance, and is mixed with an atomized organic solvent containing the carrier to form a mixture. The supercritical gas extracts the solvent, and is separated from the substance and carrier to produce the product. Alternatively, the carrier can be in the supercritical gas and the substance in the solvent, or both the substance and carrier can be in the solvent. Atomization and formation of the mixture can be carried out by feeding the supercritical gas and solvent through a nozzle into a spray tower or column.
    Type: Grant
    Filed: December 21, 1988
    Date of Patent: August 27, 1991
    Assignee: Schwarz Pharma AG
    Inventors: Wilfried Fischer, Bernd W. Muller
  • Patent number: 4849061
    Abstract: A plastic filterware having a filter membrane made at least in part of cellulose nitrate welded to the filterware and a method of making same.
    Type: Grant
    Filed: August 10, 1987
    Date of Patent: July 18, 1989
    Assignee: Manufactures Hanover Trust Company
    Inventor: Robert G. Relyea
  • Patent number: 4816222
    Abstract: The present invention relates to a method to obtain a suspension and/or a solution of limestone powder in water. The limestone powder is placed on a grating (7) of such a mesh size that only a negligible quantity of the powder by itself passes through the grating (7) of such a mesh size that only a negligible quantity of the powder by itself passes through the grating (7). The grating is sprayed from underneath with water from several nozzles (10) so positioned that the main part of the surface of the grating (7) is sprayed. At least a part of the water passes by this through the grating (7), loosens and/or dissolves the powdered limestone and carries this with it when the water runs back through the grating (7). The water and the suspended and/or dissolved limestone powder in it are collected under the grating (7). The apparatus is also equipped with a vibrating device and has a sedimentation container in the lower portion of the container.
    Type: Grant
    Filed: April 30, 1987
    Date of Patent: March 28, 1989
    Inventor: Per-Ake Fagrell
  • Patent number: 4788051
    Abstract: A new combination is disclosed of (I) a process for producing a substance enriched in a desired isotope of hydrogen and/or oxygen from a flow of liquid substance, e.g. water which becomes depleted in its content of said isotope, and (II) replenishing the liquid substance with said isotope by (a) direct contact with a flow of steam from a source external to the process, preferably geothermal steam, and (b) supplying feed flow of the process (I) from the so replenished liquid substance.
    Type: Grant
    Filed: May 8, 1979
    Date of Patent: November 29, 1988
    Assignee: Deuterium Corporation
    Inventor: Jerome S. Spevack
  • Patent number: 4613484
    Abstract: Method and apparatus for the separation of solid particulate polymer from liquid diluent comprising the use of one or more accumulator legs to which diluent is supplied, and separated diluent is recycled to the polymerization process.
    Type: Grant
    Filed: November 30, 1984
    Date of Patent: September 23, 1986
    Assignee: Phillips Petroleum Company
    Inventors: C. A. Ayres, John N. Scott, Jr., Fred T. Sherk