Patents Examined by Lynn M. Kummert
  • Patent number: 5200152
    Abstract: A miniature chamber assembly that provides a miniature capillary environment in which a liquid medium containing microscopic-size particulate material can be placed for study under a microscope. The assembly includes components which do not wet relative to the liquid medium. The assembly provides a miniaturized capillary environment that can contain the liquid medium for a period of time sufficient to enable observation while preventing deterioration of the medium.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: April 6, 1993
    Assignee: Cytonix Corporation
    Inventor: James F. Brown
  • Patent number: 5196166
    Abstract: A blood reservoir has a blood storage section for temporarily storing blood, a blood discharge port defined in a bottom of the blood storage section for discharging the blood, the blood discharge port being displaced from a central portion of the blood storage section, and at least one partition disposed substantially vertically in the blood storage section for suppressing resonant suppression of a surface level of the stored blood upon pulsative blood discharge from the blood storage section.
    Type: Grant
    Filed: March 8, 1991
    Date of Patent: March 23, 1993
    Assignee: Terumo Kabushiki Kaisha
    Inventor: Yoshiro Katsura
  • Patent number: 5192506
    Abstract: An automated assay system includes a temperature controlled chamber with a conveyor therein. The conveyor carries berths past a port in a sidewall of the chamber to permit insertion and extraction of assay cartridges via the port into respective ones of the berths. An injector disposed outside the chamber and at the port includes a loader arm for advancing cartridges along a path through the port to accomplish insertion and extraction of a cartridge. A track is provided in the injector for guiding the assay module. A portion of the track connects by a swing arm to a pivot allowing the track portion to be swung away from the path for ejection of a cartridge. A door which provides for opening and closing of the port is connected to the swing arm to move concurrently with the swinging of the track portion. This allows for automatic closure of the port subsequent to an insertion or an extraction of a cartridge, and automatic opening of the port prior to insertion or extraction of the cartridge.
    Type: Grant
    Filed: February 14, 1991
    Date of Patent: March 9, 1993
    Assignee: P B Diagnostic Systems, Inc.
    Inventors: Fareed Kureshy, Charles A. DeAngelis, Robert C. MacIndoe, Jr.
  • Patent number: 5192504
    Abstract: Minimum carryover container for the successive containment of discrete liquids as are successively introduced thereinto, and minimum carryover discrete liquid analysis system utilizing the container, are disclosed; and operate through use of container materials which are selectively wettable by an immiscible isolation liquid which is introduced to the container independently of the discrete liquids to form an independently flowing isolation liquid stream which covers the walls of the container from the container inlet to the container outlet thereby preventing contact by the discrete liquids with the container walls. The container can include wall portions enabling the transmission of light energy therethrough from the outside of the container.
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: March 9, 1993
    Assignee: Technicon Instruments Corporation
    Inventor: Michael M. Cassaday
  • Patent number: 5190732
    Abstract: An encased catalyst, especially for motor vehicles, includes at least one metal honeycomb catalyst carrier body through which exhaust gas can pass. At least one inner jacket tube carries the at least one catalyst carrier body. An outer jacket tube approximately concentrically surrounds the at least one inner jacket tube at a distance. The at least one inner jacket tube and the outer jacket tube have end regions and are firmly joined together in one of the end regions. The at least one inner jacket tube is freely longitudinally expandable in the outer jacket tube.
    Type: Grant
    Filed: December 10, 1991
    Date of Patent: March 2, 1993
    Assignee: Emitec Gesellschaft fur Emissionstechnologie mbH
    Inventors: Wolfgang Maus, Ludwig Wieres, Rainer Sahler
  • Patent number: 5188801
    Abstract: The invention relates to a blood-treatment device including hollow fibers which are suitable for conveying a fluid and are in a plurality of superposed layers arranged in directions which are offset from layer to layer so as to create a uniform flow of blood from an inlet chamber adjacent one end layer of the plurality of superposed layers to an outlet chamber adjacent the other end layer, the blood passing through the layers in a direction substantially perpendicular thereto and bathing the external surfaces of the hollow fibers.
    Type: Grant
    Filed: January 16, 1991
    Date of Patent: February 23, 1993
    Assignee: Cortek S.p.A.
    Inventor: Massimo Fini
  • Patent number: 5183642
    Abstract: An installation for steam cracking hydrocarbons comprises at least one hydrocarbon cracking furnace, an indirect quench heat exchanger for the effluents leaving the furnace, direct quench means for said effluent, and means (36, 38) for injecting erosive solid particles into the installation for decoking purposes. The installation also includes a cyclone (10) placed at the outlet from the indirect quench heat exchanger to separate the solid particles from the gaseous effluent, with the solid particle outlet (14) from said cyclone being connected to storage tanks (20, 30) connected in series with isolating valves (16, 28, 34), a source (38) of gas under pressure being provided to raise the pressure in one of the tanks and to inject the solid particles into the installation.
    Type: Grant
    Filed: May 30, 1991
    Date of Patent: February 2, 1993
    Assignee: Procedes Petroliers et Petrochimiques
    Inventor: Eric Lenglet
  • Patent number: 5180554
    Abstract: A method of cleaning atmosphere gas used in manufacturing high-purity fine particles of reactive metals comprises the steps of: letting the moisture existing in the atmosphere gas condense into dew droplets using a cryogenic cooling medium; removing the moisture defined by the dew droplets through dissociation by letting it react with metallic Na that has been brought into contact with the dew droplets; generating a vapor of metallic Na in the atmosphere gas so as to remove the moisture still persisting in the atmosphere gas; further removing through dissociation the moisture still persisting in the atmosphere gas by letting it react with Na vapor that has been generated and dispersed into the atmosphere gas; letting the atmosphere gas cleaned of moisture come into contact with black barium powder; and detecting the presence of moisture in the atmosphere gas through a change in color of the black barium powder.
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: January 19, 1993
    Assignee: Ishikawajima-Harima Heavy Industries Co., Ltd.
    Inventors: Toru Yamaguchi, Yukio Inazuki, Hideo Nakazawa
  • Patent number: 5180674
    Abstract: A method and an apparatus for preparing saccharide compositions is disclosed. The mGOVERNMENT SUPPORTPortions of this invention were supported by National Science Foundation Grant DCB8817883.
    Type: Grant
    Filed: April 11, 1991
    Date of Patent: January 19, 1993
    Assignee: The Trustees of the University of Pennsylvania
    Inventor: Stephen Roth
  • Patent number: 5180555
    Abstract: A microbiological analysis cup having a flat bottom, a wall with a circular section connected to this flat bottom and an open end. Moving from the flat bottom wall of the cup, there are at least three superposed tapered zones whose respective base diameters increase from the flat bottom to the open end.The cup makes it possible to work with very small volumes of bacterial suspension for short incubation periods, which makes it very economical to use.
    Type: Grant
    Filed: October 25, 1990
    Date of Patent: January 19, 1993
    Assignee: Bio Merieux
    Inventor: Daniel Monget
  • Patent number: 5180559
    Abstract: A method of reducing the light-off time of a catalytic converter comprising exposing the matrix of the converter to an alternating magnetic field or to electromagnetic radiation having a frequency such that the washcoat and the catalyst particles supported by the matrix are heated to the light-off temperature without a corresponding increase in the temperature of the entire matrix. The catalytic converter includes a matrix formed in two or more parts, of which the downstream parts are conventional. The upstream part of the matrix consists of a honeycomb made of a material which does not absorb microwave energy, is coated with a washcoat dispersed with catalyst particles which does heat up when exposed to microwave energy, and is enclosed in a waveguide having perforated walls through which exhaust gases can flow.
    Type: Grant
    Filed: October 21, 1991
    Date of Patent: January 19, 1993
    Assignee: Ford Motor Company
    Inventor: Thomas T. Ma
  • Patent number: 5174969
    Abstract: An efficient, economical, compact diesel particulate filter comprising a casing radially filled with a bundle of tubes comprising woven, braided, or knitted inorganic yarn, wherein each tube is at least about twice the length of the bundle, and is folded at one end to prevent exhaust from traveling through the hollow of the tube without passing through its wall.
    Type: Grant
    Filed: April 5, 1991
    Date of Patent: December 29, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Edward M. Fischer, Donald D. Johnson, Stephen M. Sanocki
  • Patent number: 5173264
    Abstract: A system for detecting trace concentrations of an analyte in air includes a preconcentrator for the analyte and an analyte detector. The preconcentrator includes an elongated tubular container comprising a wettable material. The wettable material is continuously wetted with an analyte-sorbing liquid which flows from one part of the container to a lower end. Sampled air flows through the container in contact with the wetted material with a swirling motion which results in efficient transfer of analyte vapors or aerosol particles to the sorbing liquid and preconcentration of traces of analyte in the liquid. The preconcentrated traces of analyte may be either detected within the container or removed therefrom for injection into a separate detection means or for subsequent analysis.
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: December 22, 1992
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Solomon Zaromb, Ralph M. Bozen
  • Patent number: 5173258
    Abstract: A recirculation/drying unit is provided for connection to a sealable enclosure. The unit and the enclosure form a closed circuit through which the gaseous medium of the enclosure is circulated, filtered, dehumidified or optionally, humidified, and returned to the enclosure. A vapor decontaminant is carried into and through the enclosure by the gaseous medium for a predetermined period of time sufficient to sterilize, disinfect or sanitize the gaseous medium, the enclosure and its contents. The decontaminant is returned to the unit for conversion into a form suitable for release into the atmosphere. The unit preferably includes filters, an air pump, a drier, a reservoir of liquid decontaminant, a reservoir of water, an injection pump, at least one vaporizer and at least one converter.
    Type: Grant
    Filed: October 11, 1989
    Date of Patent: December 22, 1992
    Assignee: American Sterilizer Company
    Inventor: Robert W. Childers
  • Patent number: 5173266
    Abstract: A disposable one-time use, inexpensive, capillary-action safety micro-pipet for obtaining a sample of blood or other liquid comprises a transparent glass tube which is capable of drawing blood or other liquid into the tube by capillary action, and a resilient sheet, with an adhesive layer adhering the resilient sheet in one or more layers around the outside surface of the tube for covering the outside surface of the tube and protecting a user against being cut by any jagged edges of a broken tube.
    Type: Grant
    Filed: July 19, 1989
    Date of Patent: December 22, 1992
    Assignee: Drummond Scientific Company
    Inventor: James W. Kenney
  • Patent number: 5173267
    Abstract: An encased catalyst, especially for motor vehicles, includes at least one metal honeycomb catalyst carrier body through which exhaust gas can pass. At least one inner jacket tube carries the at least one catalyst carrier body. An outer jacket tube approximately concentrically surrounds the at least one inner jacket tube at a distance. The at least one inner jacket tube and the outer jacket tube have end regions and are firmly joined together in one of the end regions. The at least one inner jacket tube is freely longitudinally expandable in the outer jacket tube.
    Type: Grant
    Filed: April 11, 1991
    Date of Patent: December 22, 1992
    Assignee: Emitec Gesellschaft fur Emissionstechnologie mbH
    Inventors: Wolfgang Maus, Ludwig Wieres, Rainer Sahler
  • Patent number: 5171544
    Abstract: A chemical reactor comprises packing media which promotes plug flow through the reactor. The packing media comprises a plurality of stacked plates, each plate comprising an array of upwardly protruding dimples separated by downwardly protruding dimples. The plates are stacked with the down dimples lying above the up dimples of the plates below to thereby form rows of compartments. The up dimples comprise four transfer ports to provide even flow of fluid from a compartment in one row to each of the adjacent compartments in the adjacent rows. The method achieves plug flow in the reactor and causes two fluids to mix by the use of turbulence and shear at each transfer port.
    Type: Grant
    Filed: January 22, 1992
    Date of Patent: December 15, 1992
    Inventor: John S. Lang
  • Patent number: 5169603
    Abstract: A plurality of test tube racks are disposed side by side and coupled together at their opposite sides via clamps to form a modular test tube rack arrangement. A handle or handles engage(s) the clamps to provide a balanced pivot handle arrangement for transporting a modular set of connected racks.
    Type: Grant
    Filed: August 1, 1991
    Date of Patent: December 8, 1992
    Inventor: David Landsberger
  • Patent number: 5169604
    Abstract: An apparatus for effecting high temperature catalytic conversion treatment of combustion exhaust gasses flowing in an exhaust path of an industrial installation which comprises a housing assembly including a fixed housing unit forming a fixed part of a gas exhaust path defining an opening, the housing assembly includes a cover member mounted on the fixed housing unit for movement from an operative position closing the opening to an open position providing access to an interior space within the fixed housing unit through the opening. A mounting assembly is provided for mounting one or more catalytic carrier assemblies stably both axially and peripherally within the housing assembly so that exhaust gasses flow only through passages in the catalytic carrier assemblies in operation.
    Type: Grant
    Filed: October 30, 1991
    Date of Patent: December 8, 1992
    Assignee: Johnson Matthey, Inc.
    Inventor: William J. Crothers, Jr.
  • Patent number: 5167921
    Abstract: A defoaming device for separating foam and bubbles from a liquid, such as blood, is disclosed. The device can be used in conjunction with a medical device, such as a membrane oxygenator, for separating air from blood while minimizing blood contact with the antifoam agent used in the device. In a first embodiment, the device includes a reservoir and a filtering material that does not contain any antifoaming agent. This filtering material is positioned in a lower portion of the reservoir to separate foam and bubbles from the liquid. An element containing an antifoaming agent is positioned in the reservoir above the maximum surface fluid level therein and receives the foam and bubbles that rise from the filtering material. Contact of the liquid with the antifoaming agent is substantially avoided. In a second embodiment, an element containing an antifoaming agent is positioned in the reservoir within the fluid therein.
    Type: Grant
    Filed: November 19, 1991
    Date of Patent: December 1, 1992
    Assignee: Baxter International Inc.
    Inventor: Lucas S. Gordon