Patents Examined by Amalia L. Santiago
  • Patent number: 5401472
    Abstract: An apparatus for producing high surface area active carbons in a safe and commercially advantageous manner by the alkali metal hydroxide-based activation method is provided. Using pushers (9a-k), the apparatus circulates containers (C) along a container travel line (8) connecting the elements: material feeding section (1).fwdarw.inlet side gas replacement chamber (2).fwdarw.tunnel kiln (3).fwdarw.cooling zone (4).fwdarw.water injection chamber (5).fwdarw.outlet side gas replacement chamber (6).fwdarw.reaction mixture discharge port (7) to form a closed circuit. During the travel of the containers, a series of steps is performed, namely the steps of charging of the containers with raw materials (carbonaceous material and alkali metal hydroxide-water mixture), dehydration, activation of the carbonaceous material with the alkali metal hydroxide, cooling, water injection and discharge of the reaction mixture.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: March 28, 1995
    Assignee: Kansai Netsukagaku Kabushiki Kaisha
    Inventors: Masahiro Kawakami, Toshiro Otowa, Mamoru Shiraishi, Kazuhiko Higuchi
  • Patent number: 5399324
    Abstract: The present invention broadly relates to a catalyst system for promoting oxidation-reduction reactions of the exhaust gases produced by an internal combustion engine wherein the catalyst comprises a two-stage system of a first-stage nitric oxide removal (by reduction) catalyst and a second-stage carbon monoxide and hydrocarbon removal (by oxidation) catalyst. The first-stage catalyst comprises between about 0.1 and 3% by weight tungsten carried on a support material comprising mostly .gamma.-alumina. The second-stage catalyst is an oxidation catalyst such as platinum on alumina.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: March 21, 1995
    Assignee: Ford Motor Company
    Inventors: Somasundaram Subramanian, Robert J. Kudla, Mohinder S. Chattha
  • Patent number: 5395404
    Abstract: Whole tires are heated in a pressure vessel to a range of between 700.degree. Farenheit and 900.degree. Farenheit, with pressure within the vessel achieved and maintained at 100-300 pounds per square inch. The vessel has a heat tube which extends through the center of the tires contained therein to uniformly apply heat. The method produces a low sulfur oil and gas, and a useable coke product from the pryolysis of the tires.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: March 7, 1995
    Assignee: The Jerrold Corporation
    Inventor: Jerry Burckhalter
  • Patent number: 5395591
    Abstract: A method of irradiating a biological specimen with ultraviolet, in particular a polynucleotide specimen selected from DNA or RNA, or optionally a protein. In the case where the specimen is DNA or RNA, or potentially proteins, the specimen is irradiated to cross-link the specimen to a substrate. In the case where the specimen is DNA, the specimen can also be irradiated to form thymine dimers. The method uses an apparatus which permits relatively precise control of the total ultraviolet dose received by the specimen, despite any changes of ultraviolet flux from the lamps which may occur from during any one experiment, or between a number of experiments. Thus, the method allows relatively highly reproducible results to be obtained.
    Type: Grant
    Filed: December 30, 1992
    Date of Patent: March 7, 1995
    Inventors: William C. Zimlich, Jr., Joseph A. Sorge
  • Patent number: 5395594
    Abstract: The present invention is directed to a simultaneous multiple chemical synthesizer comprising a number of reaction vessels wherein each vessel has a filter in the bottom portion thereof, a number of needles wherein each needle is connected to an aspiration injection line of a reaction mixture and a gas supply line in connection with each reaction vessel and each needle does not touch the resin contained in the reaction vessel, a number of arms which are horizontally and vertically movable and hold the respective needles, a bubbling gas line and a waste discharge line in connection with each reaction vessel, wherein each line is connected to the bottom portion of each reaction vessel, a number of purging means which move synchronously with said waste discharge lines, and means for washing the portions of the needles and purge means which contact with the reaction reagents.
    Type: Grant
    Filed: August 24, 1992
    Date of Patent: March 7, 1995
    Assignee: Shimadzu Corporation
    Inventors: Kiyoshi Nokihara, Makoto Hazama, Rintaro Yamamoto, Shin Nakamura
  • Patent number: 5395596
    Abstract: An apparatus and method of operating a fluidized bed reactor for combusting refuse derived fuel is disclosed. The reactor includes a fluidized furnace section 30 and stripper/cooler section 80. A downwardly sloping grid 28 extends across the furnace section 30 and stripper/cooler section 80 to a drain 78 in the stripper/cooler section 80, and directional nozzles 38 disposed in the grid fluidize the beds in the furnace section 30 and stripper/cooler section 80 and forcibly convey relatively large particulate material across the grid 28, through the furnace section 30 and stripper/cooler section 80, and to the drain 78 for disposal. A refractory layer 36 is provided along the grid 28 surface to reduce the height of the nozzles 38 within the furnace section 30, thereby helping to prevent relatively large particulate material from becoming entangled with or stuck to the nozzles 38.
    Type: Grant
    Filed: May 11, 1993
    Date of Patent: March 7, 1995
    Assignee: Foster Wheeler Energy Corporation
    Inventors: Justin P. Winkin, Walter R. Campbell, Jr., Stephen J. Goidich, John Tang, Iqbal F. Abdulally, John W. Phalen
  • Patent number: 5387399
    Abstract: A catalytic combustion apparatus has a cylindrical housing defining a fluid passage, and a plurality of combustion catalyst bodies arranged face to face along the fluid passage in the cylindrical housing. The catalyst bodies are loosely fitted in the cylindrical housing. Each catalyst body defines numerous bores extending along the fluid passage. The cylindrical housing includes holders extending inwardly of the housing for contacting end surfaces of the catalyst bodies to prevent movement thereof along the fluid passage.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: February 7, 1995
    Assignees: Osaka Gas Co., Ltd., Kobe Steel, Ltd., Catalysts and Chemicals Inc.
    Inventors: Toshio Nishida, Hiroki Sadamori, Shinichi Adachi, Akira Hidaka, Mamoru Aoki, Toshio Matsuhisa
  • Patent number: 5382412
    Abstract: An improved reactor for a high-temperature deposition reaction on seed particles is constructed with a fluidized bed which is divided into a heating zone and a reaction zone by a partition. Seed particles in the heating zone are fluidized by a carrier gas and are heated by microwaves. On the other hand, the reaction zone for the deposition reaction, through which reaction gases pass, is heated by particle mixing between the reaction zone and the upper section of the heating zone. Subsequently, a desired reaction temperature at the reaction zone is maintained stable without deteriorating the microwave heating of the heating zone.
    Type: Grant
    Filed: April 28, 1993
    Date of Patent: January 17, 1995
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Hee Y. Kim, Yong M. Song, Jong Y. Jeon, Dae H. Kwon, Kang M. Lee, Jae S. Lee, Dong S. Park
  • Patent number: 5380499
    Abstract: A method for injecting an aqueous ammonia into a flue gas for reducing NO.sub.x in the flue gas comprises providing at least one tube pass in a path of the flue gas. As the vaporized aqueous ammonia and air mixture passes through the tube, it is injected into the flue gas. The flue gas raises the temperature of the remaining vaporized aqueous ammonia mixture for later use in vaporization of the aqueous ammonia.
    Type: Grant
    Filed: June 15, 1993
    Date of Patent: January 10, 1995
    Assignee: The Babcock & Wilcox Company
    Inventor: James M. MacInnis
  • Patent number: 5380502
    Abstract: A spring-biased system for suspending a reactor tube in a reactor (e.g. a hydrogen reforming furnace) which allows the tension in each reactor tube to be easily monitored while the reactor is in operation. The suspension system includes high precision springs, the compression of which is adjusted to pre-tension a respective reactor tube so that abnormal expansion of that tube during heat-up will be readily apparent from any change in length (i.e. compression) of the springs.
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: January 10, 1995
    Assignee: Atlantic Richfield Company
    Inventors: Timothy J. Murphy, Guy A. Maakad, Jr.
  • Patent number: 5375465
    Abstract: A method for profiling of a gas and liquid producing wells comprising compiling calibration data from measuring instruments within non-in situ test equipment, valuing downhole gas and liquid density, determining average values for downhole instrument measurements and predicting, utilizing the above information, a percent of total gas flow and a percent of total liquid flow at a downhole depth.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: December 27, 1994
    Assignee: Royal Wireline, Inc.
    Inventor: Norman R. Carlson
  • Patent number: 5376181
    Abstract: A nozzle assembly which comprises nozzle duct having inlet and discharge ends is provided with a tubular support. The support has a first end in fluid communication with the nozzle duct adjacent the discharge end thereof. The second end of the support extends to a location where it is accessible, to enable a source of cleaning fluid to be coupled thereto, and is normally capped.
    Type: Grant
    Filed: September 1, 1993
    Date of Patent: December 27, 1994
    Assignee: EVT Energie - und Verfahrenstechnik
    Inventor: Heinz Reidick
  • Patent number: 5374413
    Abstract: An improved method is provided for the deposition of high-purity silicon on silicon particles from silicon source gases in a fluidized bed reactor which is divided into a heating zone and a reaction zone by a partition. Silicon particles in the heating zone are fluidized by a carrier gas such as hydrogen and are heated by microwaves. On the other hand, the reaction zone for the deposition of silicon, through which reaction gases including the silicon source pass, is heated by particle mixing between the reaction zone and the upper section of the heating zone. Subsequently, a desired reaction temperature at the reaction zone is maintained stable without deteriorating the microwave heating of the heating zone.
    Type: Grant
    Filed: April 28, 1993
    Date of Patent: December 20, 1994
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Hee Y. Kim, Yong M. Song, Jong Y. Jeon, Dae H. Kwon, Kang M. Lee, Jae S. Lee, Dong S. Park
  • Patent number: 5368824
    Abstract: A gas distribution system employing an array of parallel gas inlet pipes and a pair of transverse gas inlet pipes located below the first group of pipes to fluidize a particulate bed in a reaction vessel and to remove non-fluidizable particles that may be introduced into or form in the bed.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: November 29, 1994
    Assignee: Marquess and Nell Inc.
    Inventors: David J. Nell, Frederick A. Zenz
  • Patent number: 5366629
    Abstract: A container is supported floating in a liquid by floats; an inflow gate is loosely fitted about the container. The inflow gate has a sloping face for introducing liquid into the container. A discharge is provided for discharging the liquid accumulated in the main body bath. Floating substances collected on the sloping face of the inflow gate are raked and pushed into the main container by a raking machine arranged on the sloping face of the inflow gate and a pressure screw arranged on the sloping face of the inflow gate and a pressure screw arranged in the main container.
    Type: Grant
    Filed: March 18, 1993
    Date of Patent: November 22, 1994
    Assignees: Motoda Electronic Industry Co., Ltd., World Chemical Co., Ltd.
    Inventors: Yozi Mori, Motonori Suzuki, Hiroshi Kikuchi, Kenrou Motoda
  • Patent number: 5362449
    Abstract: A regenerative device can thermally treat gases. This device has a housing with a gas inlet and a gas outlet. A cage having a central interior is rotatably mounted in the housing between the inlet and the outlet. A plurality of gas permeable blocks are mounted peripherally in the cage around its central interior to provide therethrough: (a) an incoming flow path from the inlet to the central interior, and (b) an outgoing flow path from the central interior to the gas outlet. This incoming flow path within the blocks is non-converging. A drive motor can rotate the cage to move blocks successively past the inlet and the outlet.
    Type: Grant
    Filed: March 26, 1993
    Date of Patent: November 8, 1994
    Assignee: Applied Regenerative Tech. Co., Inc.
    Inventor: Jorgen G. Hedenhag
  • Patent number: 5356597
    Abstract: The present invention provides a flue gas conditioning system and method for generating conditioning agent used in the removal of entrained particles in a flue gas flow with an electrostatic precipitator. The invention involves the use of a catalytic converter movable between an operative position where the flue gas flows through the catalyst and converts SO.sub.2 contained in the flue gas to SO.sub.3 when conditioning agent is needed and an inoperative position where the flue gas does not flow through the catalyst when conditioning agent is no longer needed. The movable catalytic converter and related assembly may take variable configurations to accommodate various flue gas ductworks and space limitations and may carry one or more SO.sub.2 /SO.sub.3 converters providing a plurality of open and generally parallel flow paths of the flue gas that are formed by a catalyst effective over a wide range of temperatures for the controlled conversion of preferably a low percentage of SO.sub.2 in the flue gas to SO.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: October 18, 1994
    Assignee: Wilhelm Environmental Technologies, Inc.
    Inventors: Robert A. Wright, George R. Dennis
  • Patent number: 5344617
    Abstract: A system and method of converting flue gas pollutants to marketable byproducts of ammonium bisulfite and ammonium bisulfate, which are collected, and to other harmless byproducts which may be safely discharged is provided. The system removes as much particulate material and reaction inhibiting coal tar components as possible via an electrostatic precipitator and then passes the flue gas through a heat exchanger, wherein it is cooled by boiler feedwater. A suds producing detergent is introduced to the flue gas in order to separate any remaining coal tar components from the condensing moisture. Due to the removal of the tar components, sulfur dioxide and nitrous oxide readily dissolve in the condensing moisture when sufficiently cooled.
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: September 6, 1994
    Inventor: Arthur F. Johnson
  • Patent number: 5340545
    Abstract: A catalytic cracking unit is disclosed which provides for quenching of a riser reactor effluent downstream of a rough cut separator and upstream of a cyclone separator.
    Type: Grant
    Filed: February 10, 1993
    Date of Patent: August 23, 1994
    Assignee: Stone & Webster Engineering Corp.
    Inventors: Robert J. Gartside, Richard C. Norton
  • Patent number: 5308585
    Abstract: Hot solids coming from a fluidized bed reactor are passed through the cooling apparatus and at least in part are recycled to the fluidized bed reactor. In the cooling apparatus the hot solids flow first through a first fluidized bed and then flow downwardly through a gas-collecting space to a second fluidized bed, which is provided with cooling coils and in which the solids flow downwardly to a solids transfer passage and are then raised through a third fluidized bed to a discharge line. The system is controlled to cause solids coming from the first fluidized bed to flow through the gas-collecting space directly to the discharge line.
    Type: Grant
    Filed: December 29, 1992
    Date of Patent: May 3, 1994
    Assignee: Metallgesellschaft Aktiengesellschaft
    Inventors: Michael Stroder, Johannes Albrecht, Martin Hirsch, Rainer Reimert, Wladyslaw Lewandowski, Rudolf Kral