Patents Examined by Wendy Boss
  • Patent number: 6764743
    Abstract: A honeycomb structure constituted by porous cell walls forming a cell group consisting of a plurality of cells, and a honeycomb outer wall surrounding and holding the outermost peripheral cells located at the circumference of the cells, a porosity is 5% to less than 30%, a basic wall thickness (Tc) of the cell walls is 0.030 mm≦Tc<0.076 mm, an average surface roughness (Ras) of the outer wall is 0.5 &mgr;m≦Ras≦10 &mgr;m, and/or an average height (RzDINs) on the surface of the outer wall from a local maximum point to a next local minimum point is 5 &mgr;m≦RzDINs≦50 &mgr;m; and a process for producing such a honeycomb structure using a raw material having a specific average diameter. The honeycomb structure satisfies requirements of improved purification ability, erosion resistance and improved canning property at a good balance.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: July 20, 2004
    Assignee: NGK Insulators, Ltd.
    Inventors: Yasushi Kato, Yasushi Noguchi, Masato Ogawa
  • Patent number: 6764742
    Abstract: A honeycomb structure body which has a number of passages partitioned with partition walls and penetrating along the axial direction. A porous honeycomb structure body which contains refractory grains as filler, one or more elements selected from the group consisting of the rare earth elements, alkaline earth elements, Al, and Si, and the crystal containing one or more kinds of these elements. The present honeycomb structure body contains refractory grains such as silicon carbide grains and the like, but it can be produced at a relatively low firing temperature at a low price, it is sufficiently porous and high in specific surface area, and it can be used as a filter for purifying automobile exhaust gas, a catalyst carrier, and the like under the high SV conditions.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: July 20, 2004
    Assignee: NGK Insulators, Ltd.
    Inventors: Shuichi Ichikawa, Takahiro Tomita, Shinji Kawasaki, Hiroaki Sakai
  • Patent number: 6764716
    Abstract: The present invention provides a ceramic honeycomb structural body, and method for preparing the same, which can satisfactorily support a catalyst and can demonstrate superior mechanical strength, even if far thinner walls are used. Said structural body comprises lattice walls formed by a large number of cells 10 which are channels for fluid and a peripheral wall 12 which covers at least the circumference of said lattice walls 11. The outer peripheral portion 112 of said lattice walls 11 located in the vicinity of said peripheral wall 12 (area B) contain a densified portion of smaller porosity than that of an inner peripheral portion 111, of said lattice walls 11, which is located inside said outer peripheral portion 112 (area A).
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: July 20, 2004
    Assignees: Denso Corporation, Nippon Soken, Inc.
    Inventors: Keiji Ito, Masanori Yamada, Tomohiko Nakanishi
  • Patent number: 6761953
    Abstract: The invention relates to laminated parts comprising outer layers and polyurethane sandwich materials, and to a method of producing these laminated parts and to their use in the automotive industry.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: July 13, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Haas, Reiner Paul, Walter Guarnieri, Adolf Lammeck
  • Patent number: 6761967
    Abstract: The invention relates to an external reinforcement for beams, columns, plates and the like, substantially consisting in the combination of fibers and a resin and whereby the majority of the fibers is situated in the longitudinal direction of the reinforcement, characterized in that at least well-defined portions of the external reinforcement are provided with an additional reinforcement formed by fibers which are arranged according to at least one direction differing from the longitudinal direction of the reinforcement.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: July 13, 2004
    Assignee: Immo Emergo, Naamloze Vennootschap
    Inventor: Dirk Christiaan Jozef Isidoor De Neef
  • Patent number: 6753061
    Abstract: A flexible sandwich panel (100), comprised of a center layer (1) and one or two outer layers (2; 3), where the center layer is made of a polymeric synthetic material, is itself flexible and exhibits a coarse-cell honeycomb structure with open cells (4) in the direction of the upper and lower side of the center layer. The outer layer or layers consist of a hardened mortar that is made flexible with synthetic additives, and that have as their core a web material consisting essentially of fibers, where the exterior side (5) of the hardened outer layer is left unrefined or roughcast in a plaster-like manner. The sandwich panel can be bent without flaking of the outer layers.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: June 22, 2004
    Inventor: Stephan Wedi
  • Patent number: 6746748
    Abstract: A honeycomb structure made of a silicon carbide-based porous body and having a number of through-holes extending in the axial direction, separated by partition walls. The strength and Young's modulus of the silicon carbide-based porous body satisfy the following relation: Strength (MPa)/Young's modulus (GPa)≧1.1. The honeycomb structure contains refractory particles such as silicon carbide particles and the like and yet can be produced at a relatively low firing temperature at a low cost, has a high strength and a high thermal shock resistance, and can be suitably used, for example, as a filter for purification of automobile exhaust gas by a treatment such as plugging of through-channel at its inlet or outlet, or as a catalyst carrier, even under a high SV condition.
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: June 8, 2004
    Assignee: NGK Insulators, Ltd.
    Inventors: Shuichi Ichikawa, Takahiro Tomita, Shinji Kawasaki, Hiroaki Sakai
  • Patent number: 6746768
    Abstract: A thermal interface and a thermal interface as part of a thermal management system that comprises a heat source, and a cooling module. The heat source has an external surface; the thermal interface is a flexible graphite sheet article having two parallel planar surfaces, with the first planar surface of the thermal interface being in operative contact with the external surface of the heat source and the second planar surface being in contact with the cooling module. The graphite sheet contains oil.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: June 8, 2004
    Assignee: Advanced Energy Technology Inc.
    Inventors: Ronald A. Greinke, Daniel W. Krassowski
  • Patent number: 6746752
    Abstract: A synthetic grass assembly for installation on a supporting soil substrate includes a pile fabric with a flexible sheet backing and rows of upstanding synthetic ribbons representing grass blades, extending upwardly from an upper surface of the backing. An infill layer of two distinct graded courses of particulate material is disposed interstitially between the upstanding ribbons upon the upper surface of the backing and of a depth less than the length of the ribbons. A bottom course of intermixed hard sand and resilient rubber granules with substantially identical particle size distribution characteristics is installed upon the backing and a top course exclusively of resilient rubber granules is placed upon the bottom course.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: June 8, 2004
    Assignee: Fieldturf Holdings Inc.
    Inventor: Jean Prevost
  • Patent number: 6743497
    Abstract: In a honeycomb sandwich panel having a honeycomb core, and a front surface layer and a rear surface layer sandwiching the honeycomb core on its upper and lower surfaces, at least one of the front surface layer and the rear surface layer is made of a fiber reinforced plastic using a phenolic resin as a matrix.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: June 1, 2004
    Assignee: Sakura Rubber Co., Ltd.
    Inventors: Yutaka Ueda, Masaki Morinaka, Makoto Chujo, Tadashi Torigoe, Makiko Iida, Kazuyuki Tamada
  • Patent number: 6743504
    Abstract: A composite structure has composite skin layers and at least two elongated stiffener/spacer composite members interposed between the skin layers. The stiffener/spacer composite members are arranged generally longitudinally of the skin layers in spaced-apart relation laterally. Each of the skin layers is formed by assembling a layer of an uncured resin-impregnated fiber material on a forming surface of a jig. Each stiffener/spacer composite member is formed of an uncured resin-impregnated fiber material that is laid up over an elongated hollow mandrel of a stiffened fabric and is assembled to one of the uncured skin layers. The jigs are juxtaposed to form a sandwich with the assembled uncured composite layers, which are then vacuum-bagged and co-cured under a predetermined pressure and a predetermined temperature to render the structure unitary.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: June 1, 2004
    Assignee: Rohr, Inc.
    Inventors: Gregory A. Allen, David J. Belisario
  • Patent number: 6740389
    Abstract: The present invention relates to a cellular structure for use in honeycomb window shades having plurality of rows forming a single column of double cells, which forms a uniformly pleated appearance for the face and rear of the cellular structure. Each of the plurality of rows of double cells is constructed of a longitudinal strip of material having a greater width portion and a limiting member portion. The limiting member portion serves to restrict the extent to which any row may be stretched. The present invention further relates to a method for making the cellular structure.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: May 25, 2004
    Assignee: Teh Yor Industrial Co., Ltd.
    Inventor: Fu-Lai Yu
  • Patent number: 6733841
    Abstract: A method is provided for making a hydrophilic carbon fiber construction comprising the steps of: a) immersing a carbon fiber construction in an aqueous dispersion of one or more metal oxides, comprising: i) 1-15% by weight metal oxide; ii) 0.01%-5% by weight dispersant; and b) subsequently heating the carbon fiber construction sufficiently to remove substantially all of the dispersant. Typically the entire method can be completed in less than 20 minutes. In addition, a hydrophilic carbon fiber construction made according to the method of the present invention is provided, typically having a loading of metal oxide equivalent to 20-50 mg metal per gram of carbon.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: May 11, 2004
    Inventors: Joseph William Frisk, Wayne Meredith Boand
  • Patent number: 6730386
    Abstract: An extruded polycarbonate article suitable as an energy absorber is disclosed. The article includes a plurality of honeycomb chambers that are aligned substantially in the same direction, extend in the direction of the extrusion and are disposed adjacent to one another. A method of using the article entails aligning the honeycomb chambers in a direction parallel to the direction of the impact energy.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: May 4, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Kurt-Rainer Stahlke, Roland Brambrink
  • Patent number: 6726974
    Abstract: A thermoplastic folded honeycomb structure and method for the production thereof A strip of material is plastically deformed perpendicular to the plane of the material and folded in the direction of conveyance until the cell walls meet and are joined.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: April 27, 2004
    Assignee: K.U. Leuven Research & Development
    Inventors: Jochen Pflug, Ignace Verpoest
  • Patent number: 6726976
    Abstract: A concentrate of binder at the tufts produces a lighter and more flexible carpet, which allows for direct attachment of hook-and-loop means on the carpet backing. Thermoplastic binder yarns are pinned by the pile yarns against the primary backing. Subsequent application of heat melts the binder yarns and fuses the tufts and primary backing together. An alternate embodiment uses highly shrinkable binder sheet placed over the backing before tufting, instead of the binder yarns.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: April 27, 2004
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Zafiroglu P. Dimitri
  • Patent number: 6726977
    Abstract: A honeycomb structure in which the structure has a reinforced part having been loaded with a cordierite powder at least on one end surface of the frontal openings of the substrate of a honeycomb structure made of cordierite. This honeycomb structure does not decrease merits of a small pressure loss and the like as a thin-walled honeycomb structure, and is also excellent in abrasive resistance of the end surfaces of the frontal openings.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: April 27, 2004
    Assignee: NGK Insulators, Ltd.
    Inventors: Kazuhiko Kumazawa, Kunikazu Hamaguchi
  • Patent number: 6723412
    Abstract: A synthetic grass surface comprising widely spaced rows of ribbons and the ribbons having a length about twice as long as the spacing between the rows of ribbons. A particulate material is laid on a matrix of the synthetic grass, and the thickness of the particulate material is as least two-thirds the length of the ribbons.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: April 20, 2004
    Assignee: Fieldturf, Inc.
    Inventor: Jean Prévost
  • Patent number: 6720060
    Abstract: The invention relates to a honeycomb (1), particularly a catalytic converter substrate, with a honeycomb structure comprising a large number of ducts (3) running in the longitudinal direction of the honeycomb (1), through which a fluid can flow, consisting of smooth and/or structured foils arranged to form plane or curved foil layers, and a housing (2) surrounding the honeycomb structure. In order to manufacture an inexpensive honeycomb that displays a sufficiently stable honeycomb structure under the anticipated stresses and that, in addition, is particularly resistance to thermal shocks, it is proposed that stiffening elements (7a, b) connected to the foils be provided that are capable of bearing tensile stresses, at least in their longitudinal directions, and that at least partially pass through the honeycomb structure and/or are located on the outside and at least partially surround the honeycomb.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: April 13, 2004
    Inventor: Helmut Swars
  • Patent number: 6716512
    Abstract: A honeycomb structure having, in the axial direction, a number of through-channels separated by partition walls, which honeycomb structure contains refractory particles and a vitreous component and is porous. Although the honeycomb structure contains refractory particles such as silicon carbide particles or the like, it can be produced at a relatively low firing temperature; therefore, the honeycomb structure has a low production cost and a high yield and can be provided at a low price.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: April 6, 2004
    Assignee: NGK Insulators, Ltd.
    Inventors: Yoshinori Yamamoto, Naomi Noda, Takashi Harada