Patents Examined by Thomas Dunn
  • Patent number: 8753469
    Abstract: A method of vacuum-assisted RTM includes disposing a resin distribution medium on one surface of a reinforcing-fiber substrate, covering the whole with a bag material, reducing the pressure inside the bag material, and injecting a resin into the resin distribution medium to distribute the resin substantially in in-plane directions and then impregnate the resin into the reinforcing-fiber substrate in the thickness direction.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: June 17, 2014
    Assignees: Toray Industries, Inc., Mitsubishi Heavy Industries, Ltd.
    Inventors: Shigeru Nishiyama, Fumihito Takeda, Hiroshi Odani, Masumi Mizobata
  • Patent number: 6725071
    Abstract: A fully transposed composite superconductor can be especially used for AD devices and contains subconductors composed according to the Roebel bar principle and containing TC superconducting material. Superconductors are provided, that can be laterally bent in the plain of their width B so that the bending radius R is more than 100 times the width B and the bending zone length Hsue et al. '352 publication is more than 20 times the width B. The device for producing the conductor includes devices disposed in series for combining, bending, assembling to a Roebel bar, and fixating the subcontractors.
    Type: Grant
    Filed: August 14, 2002
    Date of Patent: April 20, 2004
    Assignee: Siemens Aktiengesellschaft
    Inventors: Cord Albrecht, Peter Kummeth, Peter Massek
  • Patent number: 6719187
    Abstract: The present invention provides a circuit board connecting method that includes an alkane application step and a heat-press-bonding step. The alkane application step is a preliminary step which applies an alkane group to a printed circuit board. The heat-press-bonding step heat-press-bonds a flexible circuit board to the printed circuit board by positioning their printed wire terminals and conductive thick-film terminals to face one another. In the heat-press-bonding step, the alkane group boils and cleans the surface of the printed wire terminals and conductive thick-film terminals, thereby removing the oxide film to expose the metallic portion of the terminals. The alkane group soaks into a thermoplastic film or base plate, causing it to swell and thereby bond the flexible circuit board to the printed circuit board tightly. Accordingly, both electrical and mechanical firm bonding is accomplished at a very low cost and short time.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: April 13, 2004
    Assignee: Denso Corporation
    Inventors: Toshihiro Miyake, Koichi Shigematsu, Kazuya Sanada, Hideharu Ishihara, Yoshitaro Yazaki
  • Patent number: 6150291
    Abstract: A method for reducing gaseous nitrogen oxides present in a gas stream by reaction with a reductant species is practiced by flowing the gas stream under lean NO.sub.X -reducing conditions in contact with a catalytic material containing a catalytically effective amount of a catalytic species, e.g., a platinum group metal, and a reductant storage material, e.g., a zeolite, effective for storing reductant species for reaction with NO.sub.X, and providing an intermittent supply of the reductant to the gas stream. The catalytic material may be prepared in any manner, but one method is to incorporate a catalytically effective amount of the platinum into a template-bearing molecular sieve material, preferably ZSM-5, to hinder the platinum from being incorporated into the pores of the molecular sieve material, and then calcining the molecular sieve material, whereby the template is removed from the molecular sieve material after the platinum is incorporated therein.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: November 21, 2000
    Assignee: Engelhard Corporation
    Inventors: Michel Deeba, Jennifer S. Feeley, Robert J. Farrauto
  • Patent number: 6080303
    Abstract: The present invention provides a process for improving the catalytic activity of small and medium pore acidic zeolite catalyst which comprises the steps of treating a zeolite with a phosphorus compound to form a phosphorus treated zeolite and combining the phosphorus treated zeolite with AlPO.sub.4. Optionally the phosphorus treated zeolite is calcined. The step of combining the zeolite with AlPO.sub.4 may optionally be followed by steaming the combined catalyst. Examples of useful phosphorus containing compounds useful in treating the zeolite include phosphoric acid, ammonium mono or dihydrogen phosphate, organic phosphites, and organophosphines. Preferably the phosphorus containing compound is an ammonium acid phosphate. An additional alternate embodiment provides a process for increasing the hydrothermal stability of a zeolite catalyst which comprises first treating a zeolite with a phosphorus containing compound then blending with AlPO.sub.4.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: June 27, 2000
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Guang Cao, Luc R. M. Martens, Jeffrey L. White, Tan-Jen Chen, Matu J. Shah
  • Patent number: 6072096
    Abstract: Process for the preparation of a catalyst including a metal of group VIII and a metal of group Ib, according to which the mixture including the alkoxide precursor of an inorganic oxide and complexes including the metals of group VIII and Ib and difunctional complexing compounds including an electron-donor group and a hydrolysable group is hydrolysed in order to form a gel. Process for the conversion of chloroalkanes into alkenes containing less chlorine by means of hydrogen, using such a catalyst.
    Type: Grant
    Filed: May 13, 1996
    Date of Patent: June 6, 2000
    Assignee: Solvay (Societe Anonyme)
    Inventors: Patrice Delhez, Benoit Heinrichs, Jean-Paul Pirard, Jean-Paul Schoebrechts
  • Patent number: 6066251
    Abstract: A catalyst system comprising a physical mixture of particles of a non-acidic large-pore zeolite containing a platinum-group metal and particles comprising a refractory inorganic oxide which is metal-free is effective for the reforming of a hydrocarbon feedstock. Reforming of paraffinic feedstocks to effect aromatization, particularly of a raffinate from aromatics extraction, provides improved activity in producing gasoline-range products when using the catalyst system of the invention.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: May 23, 2000
    Assignee: UOP LLC
    Inventors: Qianjun Chen, Paula L. Bogdan
  • Patent number: 6060633
    Abstract: A supported Lewis acid catalyst system for catalyzing hydrocarbon conversion reactions including cationic polymerization, alkylation, isomerization and cracking reactions is disclosed, wherein the catalyst system comprises an inorganic oxide support having immobilized thereon a least one strong Lewis acid comprising at least one metal salt of a strong Bronsted acid wherein the metal is selected from the group consisting of aluminum, boron gallium, antimony, tantalum, niobium, yttrium, cobalt, nickel, iron, tin, zinc, magnesium barium strontium, calcium, tungsten, molybdenum and the metals of the lanthanide series and wherein the strong Bronsted acid is selected from the group consisting of mineral and organic acids stronger than 100% sulfuric acid.
    Type: Grant
    Filed: October 20, 1995
    Date of Patent: May 9, 2000
    Inventors: Frank Joung-yei Chen, Christophe Le Deore, Thierry Hamaide, Alain M. Guyot, Ven Pinjala, John Di-Yi Ou
  • Patent number: 6040259
    Abstract: There is provided a zeolite bound zeolite catalyst which does not contain significant amounts of non-zeolitic binder and a process for converting hydrocarbons utilizing the zeolite bound zeolite catalyst. The catalyst comprises first zeolite, crystals, a binder comprising second zeolite crystals and a hydrogenation/dehydrogenation metal. The zeolite bound zeolite catalyst is prepared by converting the silica binder of a silica bound aggregate containing the first crystals of said first zeolite and at least a portion of the hydrogenation/dehydrogenation metal to said second zeolite. The zeolite bound zeolite catalyst has excellent performance when used in hydrocarbon conversion processes such as naphtha reforming and xylenes isomerization/ethylbenzene conversion.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: March 21, 2000
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Gary David Mohr, Johannes Petrus Verduijn
  • Patent number: 6037291
    Abstract: An improvement in the operation of a thermal oxidizer during regeneration of an adsorber, wherein adsorbates collected in the adsorber are removed from the adsorber and introduced into the thermal oxidizer, by regenerative steam passed through the adsorber, to be oxidized in the thermal oxidizer during a regenerative cycle of prescribed duration, regulates the concentration of adsorbates in the regenerative steam passed to the thermal oxidizer such that the concentration of adsorbates introduced into the thermal oxidizer throughout the duration of the regenerative cycle is regulated to avoid excessive deviations from a selected average concentration of adsorbates, the regulated concentration of adsorbates enabling more efficient operation of the thermal oxidizer throughout the full duration of the regenerative cycle.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: March 14, 2000
    Assignee: Croll Reynolds Clean Air Technologies, Inc.
    Inventors: Wayne P. Buckley, Boris Altshuler
  • Patent number: 6034017
    Abstract: The present invention discloses aqueous methods for enhancing the acid sites of fluid catalytic cracking (FCC) catalysts. The methods comprise the steps of contacting an FCC catalyst, either spent or fresh, with an aqueous solution comprising water, and a source of both phosphorus and aluminum. Optionally the solution includes sulfurous or sulfuric acid. The phosphorus is provided by phosphoric acid, phosphorous acid or ammonium dihydrogen phosphate. The aluminum is provided by an aluminum source selected from the group consisting of the alumina trihydrates and aluminum oxide. Chloride contamination of the aluminum source should be minimal, preferably less than about 1000 ppm chloride, more preferably less than about 200 ppm chloride. The pH of the aqueous solution is adjusted to about 3-12 by the addition of a sufficient quantity of an aqueous ammonium solution.
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: March 7, 2000
    Assignee: Coastal Catalyst Technology, Inc.
    Inventor: Stephen K. Pavel
  • Patent number: 6034187
    Abstract: A novel catalyst for polymerization of olefin is provided which comprises a modified clay compound (a) having an average particle diameter of less than 10 .mu.m, a transition metal compound (b), and an organoaluminum compound (c). This catalyst exhibits improved initial polymerization behavior, and produces an olefin polymer of less ash content at a high productivity.
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: March 7, 2000
    Assignee: Tosoh Corporation
    Inventors: Seiji Maehama, Akihiro Yano, Morihiko Sato
  • Patent number: 6034019
    Abstract: The present invention is directed toward improved processes for the regeneration of noble metal-containing catalysts wherein iron contamination of the catalyst during regeneration is significantly diminished. It has been found that maintenance of any iron present in contact with the catalyst in the oxidized state (e.g., as Fe.sub.2 O.sub.3 or Fe.sub.3 O.sub.4) during contact of the catalyst with a source of halogen in the regeneration haliding step results in a marked decrease in the degree of catalyst contamination by iron species.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: March 7, 2000
    Assignee: Exxon Research and Engineering Co.
    Inventors: Shun C. Fung, Walter S. Kmak
  • Patent number: 6033458
    Abstract: A substantially complete coating of a zeolite onto a material such as catalyst particles can be achieved by treating the material prior to or simultaneously with zeolite formation, with a polyelectrolye. Copper catalyst systems show good hydrogen storage while blocking access of hydrocarbons to the catalyst.
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: March 7, 2000
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Katharine Elizabeth Goodman, John William Hayes, Chandresh Nemchand Malde, Michael Ian Petch
  • Patent number: 6034291
    Abstract: A catalytic composition is described for the alkylation and/or transalkylation of aromatic hydrocarbons consisting of beta zeolite, as such or modified by the isomorphous substitution of aluminum with boron, iron or gallium or by the introduction of alkaline and/or earth alkaline metals following an ion-exchange process, and an inorganic ligand, wherein the extrazeolite porosity, i.e. the porosity obtained by adding the mesoporosity and macroporosity fractions present in the catalytic composition itself, is such that a fraction of at least 25% is composed of pores with a radius higher than 100 .ANG., said composition being characterized by a total volume of extrazeolitic pores greater than or equal to 0.80 ml/g.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: March 7, 2000
    Assignee: Enichem S.p.A.
    Inventors: Gianni Girotti, Oscar Cappellazzo, Elena Bencini, Giannino Pazzuconi, Carlo Perego
  • Patent number: 6034030
    Abstract: A method is provided to manufacture a palladium-gold catalyst by separately impregnating and fixing the palladium and gold and reducing the fixed solids to free metal on a suitable support useful for vinyl acetate manufacture from ethylene and acetic acid.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: March 7, 2000
    Assignee: Celanese International Corporation
    Inventors: Ioan Nicolau, Philip M. Colling, Leland R. Johnson, Michael A. Loewenstein
  • Patent number: 6030589
    Abstract: A method of catalytically reducing nitrogen oxides (NO.sub.x) and oxidizing hydrocarbons or carbon monoxide in exhaust gases of internal combustion engines or combustion power plants using a catalyst comprising a magnesium oxide/copper oxide/aluminum oxide spinel or a copper-impregnated copper oxide/aluminum oxide spinel.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: February 29, 2000
    Assignee: Daimlerchrysler AG
    Inventors: Martin Hartweg, Andrea Seibold, Leonhard Walz, Thomas Fetzer, Bernd Morsbach
  • Patent number: 6030916
    Abstract: This invention relates to the manufacture of novel molecular sieve adsorbents useful for the separation of a gaseous mixture of oxygen and nitrogen. The adsorbent is useful for the separation of oxygen and/or nitrogen from air. More particularly, the invention relates to the manufacture of a molecular sieve adsorbent which is selective towards nitrogen from its gaseous mixture with oxygen and/or an inert gas such as argon or helium.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: February 29, 2000
    Assignee: Indian Petrochemicals Corp. Ltd.
    Inventors: Nettem Venkateshwarlu Choudary, Raksh Vir Jasra, Sodankoor Garadi Thirumaleshwar Bhat
  • Patent number: 6028232
    Abstract: The present invention relates to a catalyst for preparing para-chloro aromatic compounds by the liquid-phase chlorination method. The catalyst is prepared by loading transition metal salts, rare earth metal salts or a mixture thereof, and alkali metal or alkaline earth metal chlorides having a melting point of 300.degree. C. or more, by solid-state method or impregnation method, into zeolite L being ion-exchanged by alkali metal. The present invention also relates to a process for preparing para-isomers of the chlorinated compounds by using the catalyst.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: February 22, 2000
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Sang Eon Park, Jung Whan Yoo, Poong Man Lee
  • Patent number: 6028023
    Abstract: Anionic clay compounds such as hydrotalcite-like compounds can be made by a process wherein a non-hydrotalcite-like compound (or a hydrotalcite-like compound) are heat treated and then hydrated to form hydrotalcite-like compounds having properties (e.g., increased hardness and/or density) that differ from those of hydrotalcite-like compounds made by prior art methods wherein non-hydrotalcite-like compounds (or hydrotalcite-like compounds) are not similarly heat treated and hydrated to form such hydrotalcite-like compounds.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: February 22, 2000
    Assignee: Bulldog Technologies U.S.A., Inc.
    Inventor: Albert A. Vierheilig