Patents Examined by Kathleen Choi
  • Patent number: 5618603
    Abstract: A fiber reinforcing mat is used proximate a through hole in an automotive structural element in order to reinforce the element in the area approximate the through hole. The fiber reinforcing mat is comprised of a warp having a plurality of radially extending loops and a weft which is woven through the loops in a spiral fashion. Since the weft is configured as a spiral, weft material is more dense in the area close to the through hole than in the area distal of the through hole. Consequently, the stiffness of the structural element decreases gradually in radial directions away from the through hole.
    Type: Grant
    Filed: April 24, 1996
    Date of Patent: April 8, 1997
    Assignee: Chrysler Corporation
    Inventor: Delbert D. DeRees
  • Patent number: 5616399
    Abstract: A method for stabilizing soil and reinforcing vegetation includes placing a single-layered, three-dimensional, high-profile woven geotextile fabric into the soil. The single-layered, homogeneous fabric is woven from monofilament yarns having different heat shrinkage characteristics such that, when heated, the fabric forms a thick three-dimensional, cuspated profile. The monofilament yarns have a relatively high tensile strength and a relatively high modulus at 10 percent elongation so as to provide a fabric which is greater in strength and more dimensionally stable than other geotextile structures. Thus, the geotextile fabric is suitable for use on slopes, ditches and other embankments and surfaces where erosion control, soil stabilization and/or vegetative reinforcement may be necessary. The homogeneous, single-component nature of the fabric promotes easier handling and minimizes failure points, while offering a thick, strong and dimensionally stable product upon installation.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: April 1, 1997
    Assignee: Synthetic Industries, Inc.
    Inventor: Marc S. Theisen
  • Patent number: 5616407
    Abstract: A functionalized macroporous poly(styrene divinylbenzene) particle comprises at least one ionic functional group covalently bonded thereto, the functionalized particle having sorptive capability towards an analyte, said functional group being present in the range of 0.1 to 2.5 milliequivalents per gram of poly(styrene divinylbenzene). The functionalized particles can be used in a packed column or enmeshed in a nonwoven web for utility in solid phase extraction applications.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: April 1, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James S. Fritz, Donald F. Hagen, Craig G. Markell
  • Patent number: 5614312
    Abstract: This invention relates to a wet-laid sheet material prepared from thermoplastic fibers, graphite particles, reinforcing fibers, and microglass fibers. The sheet material is useful in making compression molded composite plaques, said plaques being thermally and electrically conductive.
    Type: Grant
    Filed: June 27, 1995
    Date of Patent: March 25, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Kenneth W. Tucker, Gregory P. Weeks
  • Patent number: 5614301
    Abstract: A chemical protective fabric for use in garments worn by persons in a cheally hostile environment comprises a layer of felted foam impregnated with superactivated carbon, a polyurethane emulsion binder for bonding the superactivated carbon to the foam, a first stretchable material layer bonded to the layer of foam on a first of the major surfaces thereof, and a second stretchable material layer bonded to the layer of foam on a second of the major surfaces thereof.
    Type: Grant
    Filed: April 15, 1995
    Date of Patent: March 25, 1997
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Martin Katz
  • Patent number: 5607755
    Abstract: A method for producing imitation leather which can be injection molded from the back as well as such imitation leather which can be injection molded from the back are disclosed. The imitation leather comprises a web layer with a decorative layer. In a first operational cycle, an open plastic framework is inserted into the web layer over the side of the web layer facing away from the decorative layer and subsequently, in one or a plurality of further operational cycles, one or a plurality of further open plastic frameworks are inserted. The surface of the web layer forms an adhesion layer for and at the same time a barrier against the injection molding compound. The resilience of the imitation leather is retained.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: March 4, 1997
    Assignee: Benecke-Kaliko AG
    Inventors: Michael Vollbrecht, Gustav Hildebrandt, Hans-Hinrich Kruse, Axel Bruder
  • Patent number: 5605744
    Abstract: Rigid composite laminates of paper and glass layers, suitable for use as ouflage, are provided. This combination of components allows for great versatility in the final design and utility. A strong bond is obtained between paper and a fiberglass layer due to formation of a resin-cellulose matrix which allows interbonding between the paper and fibrous glass. The composite laminates may include other coatings or signature control layers and can be used as simple appliques or construction materials. A method for preparing the composite laminates is also provided wherein the paper is treated to enhance porosity in the formation of the resin-cellulose matrix.
    Type: Grant
    Filed: June 21, 1995
    Date of Patent: February 25, 1997
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Jonathan C. Duke, Jr., Bartley P. Durst, David L. Meeker
  • Patent number: 5604042
    Abstract: A polymeric film structure having improved oxygen, flavor/odor, grease/oil and moisture barrier characteristics is disclosed. The structure includes a polymeric substrate adapted to receive an oxygen barrier on one side thereof and a moisture barrier on the other side of the oxygen barrier. The oxygen barrier includes polyvinyl alcohol cross-linked with aldehyde containing cross-linking agents in the presence of a catalytic amount of sulfuric acid. The moisture barrier can be provided by the carrier web or incorporated into the cellulosic material, which is preferably box board.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: February 18, 1997
    Assignee: Mobil Oil Corporation
    Inventors: Eber C. Bianchini, Anthony R. Knoerzer, Larry A. Parr, Leland W. Reid
  • Patent number: 5601912
    Abstract: The invention comprises a thermoplastic coextruded material comprised at least partially of recycled polystyrene. The material has a blown cellular core and a thin, high-impact, cap. In a preferred embodiment the material is used as crown molding and is comprised of a core having about 15% high-impact polystyrene and a cap of high-impact polystyrene. In the preferred embodiment the core comprises 20-85% recycled polystyrene.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: February 11, 1997
    Inventor: Robert Ellingson
  • Patent number: 5597647
    Abstract: There is provided a protective laminate having barrier properties which has a first outer layer having liquid repellency through the use of an internal, low surface tension liquid repellency additive and a bulky second outer layer having liquid absorbency through the use of an internal wetting agent, where the layers are bonded to form a laminate. When the laminate is used as part of a garment, the absorbent layer goes against the wearer.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: January 28, 1997
    Assignee: Kimberly-Clark Corporation
    Inventor: Michael D. Powers
  • Patent number: 5593766
    Abstract: A puncture resisting and processability improving composite for reinforcing bituminous roofing membranes that are free of organic mats. The composite includes a lightweight open grid of over-under construction, the grid having polyester yarns of about 30 to about 300 denier in the machine direction and about 30 to about 300 denier in the cross-machine direction, a yarns per inch count of about 3.times.3 to about 10.times.10 in each of the machine and cross-machine directions, and a dry weight pick-up of about 60 to about 250 parts of binder to 100 parts by weight of polyester in the grid, in which an adhesive that is one of dissolved and dispersed in a liquid is applied to the composite so that the open grid is held together by the adhesive alone.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: January 14, 1997
    Assignee: Bay Mills Limited
    Inventor: D. Mark Woiceshyn
  • Patent number: 5589242
    Abstract: A housing lining for a piston engine, drive motor, or machine composed of a sound-absorbent layer of fibers. The fibers are compressed and glued to form an essentially pore-free supporting frame at least in the vicinity of the edge of the layer.
    Type: Grant
    Filed: December 9, 1993
    Date of Patent: December 31, 1996
    Assignee: Firma Carl Freudenberg
    Inventors: Reinhard Stief, Roger Schork, Gerhard Muller-Broll, Thomas Jost, Manfred Mattutat, Klaus-Dieter Schmitt
  • Patent number: 5580630
    Abstract: A multi-layer article that includes a layer of a water-soluble polymer that provides a water-removable, non-tacky film over an adhesive layer and/or acts as an adhesive for securing the multi-layer article to a substrate, such as concrete, when wetted. The article forms a water barrier capable of being secured to an area of potential water flow including a layer of flexible, water-impermeable sheet material having a continuous or discontinuous coating of a water-soluble polymer thereon. When the water-soluble polymer is wetted to at least partially solubilize the water-soluble coating, the polymer readily adheres the article to a substrate at the area of potential water flow.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 3, 1996
    Assignee: AMCOL International Corporation
    Inventor: Stacy W. Byrd