Cross-sectional Configuration Of Strand Material Is Specified Patents (Class 442/192)
  • Patent number: 6147017
    Abstract: The present invention relates to industrial fibers and products made therefrom and more specifically to industrial polyester fibers and products made therefrom. The fibers comprise a synthetic melt spun polymer having a relative viscosity about 24 to about 42, a denier of about 4 to about 8, a tenacity of about 6.5 grams/denier to about 9.2 grams/denier, and a sinusoidal shaped cross section normal to a longitudinal axis of the filament, the cross section having an aspect ratio of about 2 to about 6.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: November 14, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Francis Fastenau, Mark Ashley Short
  • Patent number: 6007911
    Abstract: Industrial fabrics which contain thermoplastic weft or filling filaments characterized by having at least one segment of the filament's cross sectional area consisting of a foamed polymer are described. The unfoamed segment or segments of the filament contribute axial strength while the foamed segment or segments of the filament contribute to radial compressibility. Industrial fabrics utilizing these filaments have reduced permeability, reduced weft denier, and improved fabric rigidity.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: December 28, 1999
    Inventor: David Bowen, Jr.
  • Patent number: 6004888
    Abstract: A fibrous sheet for structure reinforcement comprising a sheet layer of reinforcing continuous filament bundles (1) arranged parallelly spaced out from each other, auxiliary covering yarns (3, 4) arranged on both sides of the sheet layer in such a manner that each of the covering yarns intersects respective reinforcing filament bundles (1) while meandering along the longitudinal direction of the reinforcing filament bundles on at least one side of the sheet layer and auxiliary chain-stitching yarns (6) which interconnects the auxiliary covering yarns on one side of the sheet layer with the auxiliary covering yarns on the other side of the sheet layer through individual spaces among adjacent reinforcing filament bundles in a warp knitting structure.
    Type: Grant
    Filed: February 26, 1998
    Date of Patent: December 21, 1999
    Assignee: Teijin Limited
    Inventors: Morihiko Sugimoto, Takeshi Honjou
  • Patent number: 5972505
    Abstract: Disclosed are fibers that are capable of spontaneously transporting certain fluids, for example aqueous fluids, such as water, on their surfaces. The fibers, especially in the form of tow, can be incorporated into absorbent articles, such as diapers, in order to transport fluids to more effectively utilize the absorbent portion of the article. The fibers can be synthetically coated with absorbent materials.
    Type: Grant
    Filed: July 23, 1991
    Date of Patent: October 26, 1999
    Assignee: Eastman Chemical Company
    Inventors: Bobby M. Phillips, Shriram Bagrodia
  • Patent number: 5958804
    Abstract: The invention provides fabrics having improved ballistic performance and processes for making the same. The fabrics include a network of consolidated multifilament yarns formed of high strength filaments. At least a portion of the high strength filaments of the yarns, are temporarily locked together to provide a substantially stable, flattened cross-sectional configuration to the yarns. The resultant fabrics are capable of absorbing an impact from a projectile, i.e., a bullet or shrapnel, directed toward the fabric and substantially decreasing its velocity. The fabric can also provide slippage or movement of the yarns relative to one another to dissipate the energy of impact of a projectile across a greater surface area of the fabric.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: September 28, 1999
    Assignee: Hexcel CS Corporation
    Inventors: Gordon L. Brown, Jr., Dieter R. Wachter, Mark A. Anderson
  • Patent number: 5925434
    Abstract: Improved tuftable primary backings, carpets made from the backings and methods for making backings are disclosed. The backings employ fabrics made from serrated tape yarns which are coated with a film of a thermoplastic material, and optionally include a tufting lubricant applied to at least a portion of the serrated yarns.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: July 20, 1999
    Assignee: BP Amoco Corporation
    Inventors: Charles F. Phillips, Edward Barkis, Robert W. Amick, Kenneth R. Jones
  • Patent number: 5888609
    Abstract: A planar porous composite structure including a plurality of regular textile planar layers formed of continuous yarns. The layers are placed on top of each other to form a structure having two dimensions at right angles to each other and a third dimension perpendicular to them and defining a plane having a direction along the two dimensions. A plurality of openings extends through the layers. Each opening is defined by portions of the continuous yarns extending substantially in the direction of the plane and existing in the regular textile planar layers to make the planar layers regular in structure prior to placing them on top of each other. A plurality of passages extends entirely through the structure in a direction substantially perpendicular to the plane of the structure.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: March 30, 1999
    Assignee: Valtion teknillinen tutkimuskeskus
    Inventors: Mikko Karttunen, Esa Suokas
  • Patent number: 5883022
    Abstract: An absorbent fabric material of synthetic endless fibers, in particular for use in clinical areas and also clean room areas and also in company and public washrooms, in which, in order to simultaneously achieve absorbent high absorbency and handling acceptance the fiber of the fabric material is texturizable and the woven material has an open woven structure in which longer non bound in thread sections (3, 6) alternate with firmly bound in thread sections (4, 5 or 7, 8 respectively) which thereby generate capillary-like interstitial spaces between the fibers.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: March 16, 1999
    Assignee: Rotecno AG
    Inventor: Hugo Elsener
  • Patent number: 5857497
    Abstract: A papermaking fabric for use with papermaker machines having a system of shaped monofilament machine direction, yarns hereinafter MD yarns, which are woven in stacked, vertical alignment throughout the body of the fabric. Preferably, each upper MD yarn defines floats on the upper surface of the fabric and is vertically stacked with respect to the lower MD yarns. The upper and lower MD yarns may be of the same type and size or they may differ in size, shape, and composition.
    Type: Grant
    Filed: July 9, 1993
    Date of Patent: January 12, 1999
    Assignee: Wangner Systems Corporation
    Inventor: Hermann Gaisser
  • Patent number: 5840635
    Abstract: A transport and support means for heavy, high-temperature articles (5) which includes:(a) a flexible support base made of at least one weft woven fabric, one or more ply, using rigid, synthetic monofilaments with a diameter of between 0.1 and 1.0 mm and warp woven using parallel, twisted or braided synthetic multifilaments. The aforementioned mono and multifilaments have a heat resistance of at least 150.degree. C. and the aforementioned base has been treated with a silicon rubber of a heat resistant vulcanised resin:(b) a veil or layer (4) of synthetic, staple, heat-resistant fibres needles on at least one surface of the flexible support base.The transport and support means is thermostable and compact having been pressed at a temperature of 150.degree.-260.degree. C. and at a pressure of between 5 and 50 kg/cm.sup.2.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: November 24, 1998
    Assignee: Industrie Tessili Bresciane S.P.A.
    Inventor: Serafino Bertotto
  • Patent number: 5773370
    Abstract: An entangled multifilament yarn made from high strength filaments having a tenacity of at least about 7 g/d, a tensile modulus of at least about 150 g/d and an energy-to-break of at least about 8 J/g. The yarn is used to make ballistic resistant articles.
    Type: Grant
    Filed: February 15, 1996
    Date of Patent: June 30, 1998
    Assignee: AlliedSignal Inc.
    Inventors: James Jay Dunbar, Chok Bin Tan, Gene Clyde Weedon, Thomas Yiu-Tai Tam, Alfred Lewis Cutrone, Elizabeth Stroud Bledsoe
  • Patent number: 5643660
    Abstract: A melt spinning process and the nylon hollow filaments and yarns made by such process which includes extruding molten nylon polymer having a relative viscosity (RV) of at least about 50 and a melting point (T.sub.M) of about 210.degree. C. to about 310.degree. C. from a spinneret capillary orifice with multiple orifice segments providing a total extrusion area (EA) and an extrusion void area (EVA) such that the fractional extrusion void content, defined by the ratio [EVA/EA] is about 0.6 to about 0.95, and the extent of melt attenuation, defined by the ratio [EVA/(dpf).sub.S ], is about 0.05 to about 1.5, in which (dpf).sub.S is the spun denier per filament, the (dpf).sub.S being selected such that the denier per filament at 25% elongation (dpf).sub.25 is about 0.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 1, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: David Arthur Price, James Preston Bennett, Benjamin Hughes Knox, Dennis Raymond Schafluetzel