Patents Examined by Blaine R. Copenheaver
  • Patent number: 5849407
    Abstract: The present invention relates to combined insulation layers (ISS), preferably for use in shipbuilding, encompassing (i) an outer layer (AS) consisting of sheet metal, combined with (ii) a melamine layer (MSS), (iii) a sheet aluminum layer, (iv) a core layer of a hard foam material (HSS), coated on both sides with a phenolic resin prepreg (PNP).
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: December 15, 1998
    Assignee: Roehm GmbH Chemische Fabrik
    Inventor: Hermann Seibert
  • Patent number: 5846641
    Abstract: The present invention discloses a mixed ionic electronic conductor membrane comprising a dense layer sandwiched between two porous layers. Furthermore the invention discloses the application of this membrane to the use of partial oxidation of hydrocarbons. One porous layer, which is in contact with air, promotes the generation of oxygen ions. The oxygen ions diffuse through the dense layer to the second porous layer which is in contact with a hydrocarbon and result in partial oxidation of the hydrocarbon.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: December 8, 1998
    Assignee: Exxon Research and Engineering Company
    Inventors: Benjamin Abeles, Richard Barry Hall, Minyao Zhou
  • Patent number: 5843544
    Abstract: Methods and systems for forming hinged starch-bound matrices. Starch-based compositions are molded between heated molds in order to form a cellular matrix and also to remove the water from the starch-based compositions in order to form a binding matrix of solidified starch. The molding apparatus is configured to form one or more creases within the hinge area in order to define one or more lines upon which the hinge will bend. The molding apparatus is also configured such that the region of the mold corresponding to the inner surface of the hinge area will transfer heat more slowly to the inner hinge surface, resulting in reduced thickness of the skin of the inner hinge. This increases the collapsibility, or ability of the inner surface of the hinge to fold or buckle, during the bending action. This in turn reduces the bending radius of hinge such that the hinging action exerts less strain on the outer surface of the hinge.
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: December 1, 1998
    Assignee: E. Khashoggi Industries
    Inventors: Per Just Andersen, Simon K. Hodson
  • Patent number: 5843550
    Abstract: An adhesive tape for TAB having an organic insulating film, an adhesive layer formed on the organic insulating film and a protection layer formed on the adhesive layer, the adhesive layer being any one of a layer containing a polyamide resin having an amine value of at least 3 and an epoxy resin, a layer containing a polyamide resin and a powdery inorganic filler, a layer containing an epoxy resin having a siloxane structure in its main chain, and a layer containing at least one maleimide compound.
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: December 1, 1998
    Assignee: Tomoegawa Paper Co., Ltd.
    Inventors: Akinori Sei, Yoshikazu Tsukamoto, Takashi Shiozawa, Tadahiro Ohishi
  • Patent number: 5843568
    Abstract: A fiber-reinforced article includes an expanded core layer having opposing first and second surfaces with a thickness defined therebetween. The expanded core layer is formed from a composition comprising a thermoplastic material and fibers with average length of not less than about 1 mm, with at least a portion of the fibers being coated with the thermoplastic material. The fibers collectively define a network structure in which the fibers are interconnected with each other and fixed relative to each other via the thermoplastic material so that the coated fibers define interstitial voids therebetween. The article further includes first and second skin layers, the first skin layer having a surface integrally connected to the first surface of the expanded core layer and the second skin layer having a surface integrally connected to the second surface of the expanded core layer.
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: December 1, 1998
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Syohei Masui, Masahito Matsumoto, Satoru Funkakoshi
  • Patent number: 5840414
    Abstract: Solid polymer membrane fuel cell product water which forms on the oxidant side of the membrane is removed from the active area of the cells in a fuel cell power plant by being absorbed into and wicked away from the active area by a porous carbon body which contacts the membrane. The carbon body may be an oxidant reactant flow field plate. The pores in the carbon body are partially filled with metal oxide granules which impart increased wettability and water absorption capacity to the carbon body.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: November 24, 1998
    Assignee: International Fuel Cells, Inc.
    Inventors: John A. S. Bett, Douglas J. Wheeler, Calvin Bushnell
  • Patent number: 5840412
    Abstract: Composite films and film laminates comprising at least one elastomeric core and a surrounding nonelastomeric matrix preferably prepared by coextrusion. The film when stretched and allowed to recover will create an elastomeric composite.
    Type: Grant
    Filed: May 21, 1996
    Date of Patent: November 24, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Leigh E. Wood, Dennis L. Krueger, Michael R. Gorman, Randall L. Alberg
  • Patent number: 5837365
    Abstract: Polypropylene (PP) membranes having a hydrophilic surface have been prepared by extracting a fugitive hydrophilic pore-forming agent from a gelled film prepared by evaporating the solvent from a homogeneous solution of isotactic polypropylene, functionalized polypropylene an the fugitive agent in a solvent, such as xylene. Most of the functional groups, such as --OH, --NH.sub.2 and --COOH, in the functionalized polypropylene are located on the surfaces of the membrane, including pore surfaces. The resulting membranes, especially membranes having an asymmetric structure, are useful for ultrafiltration, dialysis and/or microfiltration.
    Type: Grant
    Filed: April 8, 1996
    Date of Patent: November 17, 1998
    Assignee: The Penn State Research Foundation
    Inventor: Tze-Chiang Chung
  • Patent number: 5837383
    Abstract: Recyclable and compostable coated paper stock comprising a substrate coated on at least one surface with a primer coat and a top coat both of which are water based dispersions. The primer coat comprises a water based dispersion of a polymer selected from the group comprising acrylic polymers, acrylic copolymers, polyvinyl acetate, polyvinyl alcohol, poly-ethylene vinyl acetate, poly-ethylene vinyl chloride, styrene butadiene copolymers, polyvinylidiene chloride or starch. The top coat comprises a water based dispersion of a polymer selected from the group comprising acrylic polymers, acrylic copolymers, styrene butadiene copolymers or polyvinylidiene chloride. In another embodiment the top coat further includes a wax component comprising 15-90 wt. % of the polymer and 5-85 wt. % of the wax. The substrate is coated with a primer coat prior to the application of the top coat to seal the substrate surface.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: November 17, 1998
    Assignee: International Paper Company
    Inventors: Donna J. Wenzel, Gene W. Bartholomew, James R. Quick, Morton S. Delozier, Maxine Klass-Hoffman
  • Patent number: 5834107
    Abstract: The present invention relates to the field synthetic polymeric membrane materials formed from casting polyvinylidene difluoride (PVDF) polymer solutions and/or dispersions. Membranes formed in accordance with the present invention are all highly porous. Both internally isotropic membranes and highly asymmetric PVDF membranes are disclosed. The membranes of the invention are useful in a variety of microfiltration and ultrathin applications.
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: November 10, 1998
    Assignee: USF Filtration and Separations Group Inc.
    Inventors: I-Fan Wang, Jerome F. Ditter, Robert Zepf
  • Patent number: 5830548
    Abstract: Compositions and methods for manufacturing composite laminate structures incorporating sheets having a moldable matrix are disclosed. Suitable compositions are prepared by mixing together a water dispersable organic binder, water, and appropriate additives (such as aggregates and fibers) which impart predetermined properties so that a sheet formed therefrom has the desired performance criteria. The compositions are formed into sheets by first extruding them into a sheet and then calendaring the sheet using a set of rollers. The calendered sheets are dried in an accelerated manner to form a substantially hardened sheet. The drying process is performed by heated rollers and/or a drying chamber. The inorganically filled sheets so formed may have properties substantially similar to sheets made from presently used materials like paper, cardboard, polystyrene, or plastic. Such sheets can be rolled, pressed, scored, perforated, folded, and glued before or after being incorporated into composite laminate structures.
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: November 3, 1998
    Assignee: E. Khashoggi Industries, LLC
    Inventors: Per Just Andersen, Simon K. Hodson
  • Patent number: 5824400
    Abstract: The present invention relates to a plastic article formed from several foamed thermoplastic elastomers, such as a thermoplastic polyolefin elastomer based on polypropylene and a vulcanized elastomer at least one of an elastomeric styrene/ethylene/butylene/styrene block copolymer, an elastomeric styrene/butadiene/styrene block copolymer, a thermoplastic elastomer based on polypropylene and an elastomeric styrene/ethylene/butylene/styrene block copolymer and a thermoplastic elastomer based on polypropylene and an elastomeric styrene/butadiene/styrene block copolymer. The present invention further provides plastic articles based on a blend of thermoplastic elastomers and thermoplastic elastomer olefins. The invention further provides a process for making these articles.
    Type: Grant
    Filed: January 25, 1996
    Date of Patent: October 20, 1998
    Assignee: DSM N.V.
    Inventors: Jordanis Petrakis, Wolfgang Hoge, Torsten Leenaerts, Marinus Alfenaar, Johannes G. M. Nieuwkamp
  • Patent number: 5822178
    Abstract: A metal tape is employed to form electrodes for an electrolytic capacitor. At least one side surface of the metal tape has rigidly adhered thereto a separating sheet of microporous thermoplastic material. This preferably is done by a thermal process or by cementing. Both surfaces of the metal tape, for example formed of aluminum, may have separating sheets applied thereto. Selected regions of such surface or surfaces may be maintained uncoated, whereby subsequent use as electrodes may enable the attachment to such uncoated regions of terminal contacts.
    Type: Grant
    Filed: March 14, 1996
    Date of Patent: October 13, 1998
    Assignee: Becromal S.p.A.
    Inventor: Jean Constanti
  • Patent number: 5817402
    Abstract: A composition containing thermoplastic elastomer and elastic fine particles is extruded into a sheet-like shape from an extruder. Then, by expanding this sheet-like shape member, a covering sheet having minute unevenness attributable to the elastic fine particles formed on the surface is produced. The covering sheet may have an adhesive layer, a substrate layer, a foamed resin layer, etc., on the opposite side to the surface having a matt feeling. Such covering sheet can be produced with good productivity without creating environmental problems such as a problem related to solvent, etc. By molding using the covering sheet, a molding having matt feeling can be obtained.
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: October 6, 1998
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Akitaka Miyake, Tomoko Uematsu, Toshimitsu Tsuji
  • Patent number: 5804518
    Abstract: An absorbent article having, as a back sheet, a porous sheet obtainable by preparing, by melt blending, a melt blended solution comprising 30 to 90 parts by weight of a crystalline polyolefin and 10 to 70 parts by weight of a compound with which the crystalline polyolefin is miscible and in which the crystalline polyolefin will dissolve at or above the melting point of the crystalline polyolefin but which will phase separate below the melting point of the crystalline polyolefin, molding the blended solution into a sheet, and stretching the sheet in at least one direction. The crystalline polyolefin is a polypropylene having a weight average molecular weight (Mw) to number average molecular weight (Mn) ratio (Mw/Mn) of no more than 6.0.
    Type: Grant
    Filed: November 6, 1995
    Date of Patent: September 8, 1998
    Assignee: Kao Corporation
    Inventors: Yoshihiro Sakai, Katsushi Maeda, Yoshiaki Kumamoto, Shingo Odajima
  • Patent number: 5800903
    Abstract: Composite films and film laminates comprising at least one elastomeric core and a surrounding nonelastomeric matrix preferably prepared by coextrusion. The film when stretched and allowed to recover will create an elastomeric composite.
    Type: Grant
    Filed: May 21, 1996
    Date of Patent: September 1, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Leigh E. Wood, Dennis L. Krueger, Michael R. Gorman, Randall L. Alberg
  • Patent number: 5800896
    Abstract: A blocking device for filling a cavity in a hollow structural member includes a foamable material, and magnetic member embedded on a surface of the foamable material, the magnetic member is secured within the hollow structural member and the foamable material is foamed and expanded by the application of heat so that the cavity is filled.
    Type: Grant
    Filed: September 19, 1996
    Date of Patent: September 1, 1998
    Assignee: Neo-Ex Lab. Inc.
    Inventor: Yasuhiko Kobayashi
  • Patent number: 5798151
    Abstract: Methods and apparatus for continuously extruding a hydraulically settable mixture and simultaneously placing continuous filaments within the extruding mixture to yield articles having a filament-reinforced, hydraulically settable matrix. The filaments can be placed within the mixtures in a parallel configuration, a helical configuration, or combinations thereof, in order to yield an article having the desired properties of, e.g., tensile strength, flexural strength, hoop strength, burst strength, toughness, and elongation ability. The desired properties of the hydraulically settable mixture, as well as of the cured hydraulically settable matrix of the hardened article, may also be adjusted by including varying amounts and types of aggregates, discontinuous fibers, binders, rheology-modifying agents, dispersants, or other admixtures within the hydraulically settable mixture.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: August 25, 1998
    Assignee: E. Khashoggi Industries, LLC
    Inventors: Per Just Andersen, Simon K. Hodson
  • Patent number: 5792529
    Abstract: A structural component is disclosed which includes first and second extrusions each consisting of a plurality of strengthening fibers. A third extrusion comprises a thermoplastic matrix that encapsulates the first and second extrusions. The three extrusions together define a non-planar cross sectional configuration of substantially transverse dimensions sufficient to provide component strength and stiffness. Also disclosed is an elongated structural component formed by extrusion consisting of a first extruded portion of a plurality of segments of strengthening fibers joined in a thermoplastic matrix and a second extruded portion comprising a thermoplastic matrix compatible with the first extruded portion. The first and second extruded portions together define a predetermined non-planar cross sectional configuration of substantially transverse dimensions sufficient to provide component strength and stiffness.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: August 11, 1998
    Assignee: Intek Weatherseal Products, Inc.
    Inventor: Michael M. May
  • Patent number: 5792552
    Abstract: The invention relates to concrete form panel sheeting comprising a resinous polymer core defining a concrete-form face and an opposite face, and a concrete-facing surface layer attached to the concrete-form face, the concrete-facing surface layer being adapted to be contacted by fresh concrete and to release from the concrete after curing thereof, to facilitate reuse of the concrete form panel sheeting. The invention further relates to concrete forms and form networks having the inventive concrete form panel sheeting as a component therein. The invention also relates to applications using the sheeting and forms to pour concrete.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: August 11, 1998
    Assignee: Providence Industries, L.L.C.
    Inventors: James Robert Langkamp, James Edwin Snarr