Patents Examined by Lynn M. Kummert
  • Patent number: 5163360
    Abstract: A live storage facility provides for the storage of large containers of product in a gas-tight enclosure containing an atmosphere precisely controlled to a preselected gas composition. Containers are introduced into the enclosure through a tunnel and removed through another tunnel, without significantly altering the gas atmosphere or temperature within the enclosure. An externally controlled crane moves and stacks the containers within the enclosure. The storage facility is preferably formed as a hemispherical dome with continuous walls that are impermeable to the gas. In one form, the product is agricultural produce, and there is additionally provided a cooling capability so that the product is stored at reduced temperature.
    Type: Grant
    Filed: March 23, 1990
    Date of Patent: November 17, 1992
    Assignee: California Ammonia Co.
    Inventor: David Petz
  • Patent number: 5164161
    Abstract: Apparatus and methods for proportional control of heating of a sterilizer chamber are disclosed in the application. A sterilizer chamber has heaters mounted on the walls, a wall temperature sensor and a chamber temperature sensor. The controller is operable to adjust the heat input by turning on the heaters for a variable fraction of a selected fixed interval and off for the remainder of the interval. When on the heaters provide a substantially constant heat input per unit time. The fraction of the interval during which the heaters are on is proportional to a temperature differential which comprises a setpoint temperature minus a temperature reading from one of the sensors. The controller has two, or in an alternate embodiment three, operating modes each having a unique temperature differential.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: November 17, 1992
    Assignee: MDT Corporation
    Inventors: Charles H. Feathers, Charles E. Ellis
  • Patent number: 5162104
    Abstract: A stream of process gas is indirectly heated in an elongated reaction chamber (1) with a longitudinal axis, a first end (12) and a second end (13) and defined by an outside shell (2) and a thermally conductive inner wall (4). The inner wall defines at least one recess or cavity (3) which extends substantially between the first and second end of the chamber and parallel to the longitudinal axis thereof. A process feed line (6) and a product-gas discharge line (7) are provided at opposite ends (12, 13) of the chamber. A heat conductive and heat resistant barrier (8) which defines an interior space extends coaxially with the recess or cavity (3) substantially along the entire length of the inner wall (4) and forms an annular space (9) therewith. A hot flue gas feed line (10) and a flue gas discharge line (11) is provided at one end (13) of the chamber.
    Type: Grant
    Filed: January 24, 1990
    Date of Patent: November 10, 1992
    Assignees: Mannesmann Aktiengesellschaft, K.T.I. Group B.V.
    Inventors: Maurizio Bezzeccheri, Francesco Giacobbe, Lorena Mosca
  • Patent number: 5162101
    Abstract: A device (10) having a blood oxygenator (12) and heat exchanger (14) of the outside perfusion type. The blood oxygenator (12) employs a tightly packed, crisscrossing bundle of gas permeable hollow fibers (50). The heat exchanger (14) employs a bundle of polyurethane, liquid impermeable hollow tubes (96). A center divider (16) facilitates two separate compartments (30, 40) and allows control over pack densities within each compartment while allowing blood to move in a planar manner throught out the device (10).
    Type: Grant
    Filed: July 9, 1991
    Date of Patent: November 10, 1992
    Assignee: Minntech Corporation
    Inventors: Louis C. Cosentino, Daniel T. Pigott, David T. Kesler, Jeffrey A. Lee
  • Patent number: 5162102
    Abstract: A medical instrument having a blood contact portion formed of a hydrophobic material, wherein a surface-active agent safe to a human body is deposited onto part or the entirety of the blood contact portion so that the medical instrument is fully primed by introducing liquid into the instrument without leaving fine bubbles adhered to the surface of the blood contact portion. Further, a method for fabricating a medical instrument is provided, comprising steps of assembling a medical instrument having a blood contact portion formed of a hydrophobic material, and contacting a liquid containing a surface-active agent safe to a human body to the blood contact portion, followed by drying, leaving the surface-active agent deposited onto the surface of the blood contact portion so that the surface-active agent is steadily and readily deposited onto the blood contact portion of hydrophobic material.
    Type: Grant
    Filed: April 25, 1990
    Date of Patent: November 10, 1992
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Atsuhiko Nogawa, Osamu Nomura
  • Patent number: 5160700
    Abstract: A sterilizing system includes a sealed container releasably containing a gaseous sterilant under pressure and a first enclosure made at least partially of a gas-permeable material. The container and the articles to be sterilized are disposed in and sealed within the first enclosure, the container while in the sealed first enclosure being manipulatable to release gaseous sterilant into the sealed first enclosure. A second enclosure in which the first enclosure is disposed is constructed such that the sterilant released into the first enclosure from the container diffuses through the gas-permeable material of the first enclosure into the second enclosure at a rate capable of establishing sterilizing conditions in the first enclosure during a sterilizing cycle to thereby effect sterilization of the articles in the first enclosure.
    Type: Grant
    Filed: January 2, 1991
    Date of Patent: November 3, 1992
    Assignee: H. W. Andersen Products, Inc.
    Inventors: Harold W. Anderson, Charles H. Harrison
  • Patent number: 5160709
    Abstract: An apparatus for dispensing solid or semi-solid detergents includes a hollow elongated opening or chute and an arcuate plate that extends from the side wall of the apparatus to beneath the chute. This plate provides a planar support for a detergent bar placed within the chute. Water is sprayed down the arcuate plate and projects against the detergent supported on the planar support causing it to dissolve and flow down a drain. The chute has a unique geometric design which is suitable to receive only one uniquely shaped elongated detergent bar. In a kitchen having several detergent dispensers, each detergent dispenser will have a uniquely defined chute so that only the appropriate detergent can be used in the appropriate dispenser.
    Type: Grant
    Filed: August 9, 1991
    Date of Patent: November 3, 1992
    Assignee: Diversey Corporation
    Inventors: James C. Bricker, Robert E. Ebbeler, Michael R. Roseman
  • Patent number: 5160708
    Abstract: The invention relates to a dry type simultaneous desulfurization and dedusting method in forming moving beds with a granulate desulfurizing and dedusting agent containing as the principle composition 5-95 weight % of iron oxide and 95-5 weight % of metallic iron, and contacting these moving beds with the gas containing hydrogen sulfide and dust, thereby simultaneously desulfurizing and dedusting the gas.
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: November 3, 1992
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Kenzaburo Kodama, Kenji Kamei, Kousuke Yoshida, Katsuya Ishikawa, Yukio Kubo, Yoshiaki Takatani
  • Patent number: 5158755
    Abstract: A device for holding and controlling the temperature of a corrosive chemical processing bath. The device has a tank having a bottom intimately covering thermally conductive fins, a heat sink thermally connected to the fins and heaters, connected to the heat sink, for changing the temperature of the fins. Preferably the device is produced by rotationally molding the tank about the fins coated with a polymeric material thereby covering the fins and forming an integral seamless tank.
    Type: Grant
    Filed: May 6, 1988
    Date of Patent: October 27, 1992
    Assignee: RMB Products, Inc.
    Inventors: Robert Higgins, Randy Gardiner
  • Patent number: 5158753
    Abstract: An engine exhaust gas purifying device, and process, wherein the device provides a catalyst device for treating the exhaust gas, an adsorbing device for adsorbing materials from the exhaust gas and a heat exchanger. The device is configured so that high temperature exhaust gas from the engine passes through a high temperature side of the heat exchanger prior to passing through the adsorbing device. After passing through the adsorbing device, the gas passes through the low temperature side of the heat exchanger and then passes to the catalyst device. In an alternate embodiment of the present invention, the catalyst can be disposed in the low temperature side of the heat exchanger.
    Type: Grant
    Filed: December 12, 1990
    Date of Patent: October 27, 1992
    Assignee: Nichias Corporation
    Inventors: Shigeo Take, Masaji Kurosawa
  • Patent number: 5158752
    Abstract: A plant for producing chain-type ammonium polyphosphate from ammonium orthophosphate and phosphorus pentoxide in the presence of gaseous ammonia comprises a reactor having rotatable mixing, kneading and comminuting tools in its interior and a feed pipe for the solid starting materials, an introduction pipe for ammonia, a gas discharge pipe and a discharge line for the reaction product, all of which are flow-connected to the interior of the reactor. The discharge line of the reactor is also connected for material flow to a mixing apparatus. A discharge device, which is controlled by the power consumption of the drive motor of the reactor, is arranged in the discharge line.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: October 27, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Thomas Staffel, Gunther Schimmel, Horst Buhl, Jurgen Grosse
  • Patent number: 5158751
    Abstract: A liquid metering and transfer valve assembly having the capability of metering, isolating, transfering and delivering precise microliter volume aliquots of a blood sample, from a source thereof, to mixing and testing chambers of an electronic blood analysis system for analysis, and further, carrying a loop for metering and isolating an additional sample aliquot within the valve assembly in the loop, a first dedicated passageway for introducing a first fluid to the loop to force the additional aliquot from its isolated location to a first dedicated portion of the valve assembly displaced from the loop and a second dedicated portion of the valve assembly to establish a flow path for introducing a lysing reagent to the first dedicated portion to force the additional aliquot from its displaced disposition, as a lyse reagent/aliquot mixture, to a selected additional mixing and testing chamber exterior of the valve assembly without contaminating any interior flow path traversed by a blood sample and associated dil
    Type: Grant
    Filed: December 13, 1990
    Date of Patent: October 27, 1992
    Assignee: Coulter Corporation
    Inventors: Roberto del Valle, Santos E. Vargas, Pedro P. Cabrera
  • Patent number: 5156811
    Abstract: A hollow pipette member open at its opposite ends contains a plug of porous, hydrophobic material force fitted between its ends to define a liquid sample chamber between the plug and one end of the tube. At least a major portion of the pores of the plug material are impregnated with particles of a liquid scavenging material which are of smaller size than the pores so as to allow gas to be drawn through the plug. The liquid sample chamber is of predetermined volume greater than the volume of liquid drawn by a suitable suction device attached to the opposite end of the tube, so that an air gap will remain between the drawn sample and the plug. Any liquid droplets vaporized and drawn into the plug member will contact the hydrophilic particles, which will expand to block passage through those pores while still permitting gas flow through other pores. If the liquid sample itself contacts the plug, enough particles will expand to completely block gas or liquid flow through the plug.
    Type: Grant
    Filed: July 23, 1991
    Date of Patent: October 20, 1992
    Assignee: Continental Laboratory Products, Inc.
    Inventor: David A. White
  • Patent number: 5154894
    Abstract: A catalytic converter for use in the exhaust system of an internal combustion engine having a rigid outer canister with a catalyst support disposed therein for movement between a first position adjacent in inlet end of the canister and a second position located in spaced relationship with said inlet end. In its first position, the substrate seals the inlet thereby forcing the entire exhaust flow through the fluid flow passages within the catalyst support which are in axial alignment with the converter inlet. The effect of forcing the totality of flow reduced volume of the substrate to the entire thermal energy of the exhaust stream thereby assisting in a reduction in the catalyst light-off time. Following catalyst light-off, the catalyst support is moved to its second, spaced position in which the entire frontal area of the converter is exposed to the exhaust flow thereby lowering backpressure of the converter and preventing converter overtemperature problems.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: October 13, 1992
    Assignee: General Motors Corporation
    Inventors: Glen R. MacFarlane, Jordan R. Lee, Ronald J. Cantrell
  • Patent number: 5154891
    Abstract: The laboratory apparatus is used for separating gaseous, liquid and solid substances from gas samples (for example air) to be trace analyzed. It comprises a vessel and a mixer insert with nozzles. The gas fed into the mixer insert emerges from the nozzles at high speed into an absorption liquid held in the vessel so that intensive mixing and hence high absorption of the substances takes place. After passing through the liquid the gas leaves the vessel via an outlet. The substances absorbed in the liquid are available for analysis.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: October 13, 1992
    Inventor: Karl S. Brenner
  • Patent number: 5154888
    Abstract: There are described a cuvette and a method for sealing off flow such as flow in a passageway from an access port in the cuvette with a closure, that ensures a complete seal merely by applying the closure. The cuvette is improved in that it has the closure in a closure portion that is joined to the rest of the cuvette along a hinge line that passes through the passageway to be closed off, so that application of the closure by bending the closure portion about the hinge line pinches off the passageway.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: October 13, 1992
    Assignee: Eastman Kodak Company
    Inventors: Dennis R. Zander, John B. Chemelli, Craig A. Caprio
  • Patent number: 5152964
    Abstract: A membrane blood oxygenator having a mechanism for automatically maintaining the total pressure of the oxygenating gas near yet below that of the blood across the membrane is described. This includes a valve for restricting the flow of oxygenating gas exiting the oxygenator with the pressure of the blood exiting the oxygenator. A tubing communicates the pressure of the exiting blood to the valve to activate the valve.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: October 6, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Ronald J. Leonard
  • Patent number: 5151254
    Abstract: An exhaust gas cleaning device is disposed within an exhaust pipe connected to the exhaust port of an internal combustion engine. The exhaust gas cleaning device comprises an inner pipe disposed coaxially within the exhaust pipe with an annular space defined therebetween, the inner pipe being provided with a plurality of perforations, and laminated structures disposed upon the inner and outer surfaces of the inner pipe and including a catalyst for cleaning unburned components of the exhaust gas flowing within the exhaust pipe, each of the laminated structures being formed of a material which is not deleterious to the catalyst. The laminated structure includes a catalyst carrier layer formed by, in accordance with one method, fusibly injecting a catalyst including a solution onto an intermediate layer formed upon the inner and outer surfaces of the inner pipe and drying the same so as to remove the liquid component therefrom.
    Type: Grant
    Filed: August 28, 1990
    Date of Patent: September 29, 1992
    Assignee: Suzuki Jidosha Kogyo Kabushiki Kaisha
    Inventors: Hideki Arai, Makoto Kawai, Kenji Miyai
  • Patent number: 5151253
    Abstract: A monolith can be mounted in a catalytic converter by a material containing intumescent vermiculite flakes that have a uniform content of chemically bound water from about 1.0 to 3.2% by weight and a uniform bulk density from about 0.2 to 0.9 g/cm.sup.3. Such a mounting affords good support to the monolith at warm-up temperatures, exerts adequate holding forces at operating temperatures without danger of cracking the monolith, and does not incur gradual reduction in holding forces at operating temperatures.
    Type: Grant
    Filed: April 18, 1991
    Date of Patent: September 29, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Richard P. Merry, Roger I. Langer
  • Patent number: 5149658
    Abstract: Apparatus and method are provided for the substantial separation on a continuous flow basis of immiscible liquids flowing as a common stream, with one of the liquids substantially encapsulating another of the liquids, in a flow conduit. The conduit comprises an inner surface which is selectively "wettable" by one of the liquids to the substantial exclusion of another of the liquids; and the liquid separator apparatus are disposed in the conduit and operate to substantially separate the liquids, or at least a portion of one of the liquids, from the common liquids stream as that stream flows into contact with the separator apparatus in the conduit.Apparatus and method for the introduction of a liquid on a continuous flow basis into a flowing stream of another liquid which is immiscible therewith and is flowing in a flow conduit are also provided.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: September 22, 1992
    Assignee: Technicon Instruments Corporation
    Inventors: Michael M. Cassaday, Vito F. Christiano, Bachalli Vasudeva