Cross-sectional Configuration Of The Strand Material Is Other Than Circular Patents (Class 442/195)
  • Publication number: 20030036325
    Abstract: A composite prepreg material (10) with improved resistance to core crush and porosity incorporates a plurality of different fiber forms having varying cross-sectional configurations. Preferably, the fibers are interwoven in a warp (14) and fill (18) perpendicular orientation pattern. The varying cross-sectional configurations of the different fiber forms causes the fiber forms to have different levels of spreadability and frictional resistance to movement of the fiber. The present invention overcomes the susceptibility to many defects (specifically core crush and porosity) associated with composite material of a single fiber form having a set cross-sectional configuration, by incorporating multiple fiber forms having varying cross-sectional configurations. This multi-fiber form incorporation allows the strengths of one fiber form's properties to help compensate for the weaknesses of another fiber form's properties, and vice versa.
    Type: Application
    Filed: August 29, 2002
    Publication date: February 20, 2003
    Applicant: The Boeing Company
    Inventors: Terry L. Schneider, Terence L. Pelton
  • Patent number: 6509285
    Abstract: A fabric for moisture management which contains first fibers and second fibers. The first fibers have either circular cross-sections or multiply indentations along the longitudinal side of the fibers. The second fibers have multiply indentations along the longitudinal side of the fibers. The capillary action of the first fibers is induced by either the inter-fiber spaces alone (i.e., where the fibers have circular cross-sections) or a combination of both the inter-fiber spaces and the indentation spaces, which are formed due to indentations. The capillary action of the second fibers is induced by the combination of both the inter-fiber spaces and the indentations spaces, which are formed due to indentations. The capillary action of the second fibers is greater than that of the first fibers so that the moisture absorbed by the first fibers can be easily transferred to the second fiber.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: January 21, 2003
    Inventor: Patrick Yeh
  • Publication number: 20030008582
    Abstract: A base fabric for non-coated air bags, in which both the warp and the weft or either of them comprise synthetic fiber multifilaments of flattened cross-section monofilaments having a degree of flatness of from 1.5 to 8.
    Type: Application
    Filed: March 1, 2002
    Publication date: January 9, 2003
    Inventors: Tomotaka Koketsu, Isoo Saito, Tomomichi Fujiyama, Taiichi Okada
  • Publication number: 20020187698
    Abstract: Irregular cross-sectional polyester filaments (which may be thick and thin type filaments) containing a polyester and having a cross-sectional profile which has
    Type: Application
    Filed: December 14, 2001
    Publication date: December 12, 2002
    Inventors: Tomoo Mizumura, Chiaki Tashiro, Ichiro Kitano, Nobuyoshi Miyasaka
  • Patent number: 6475596
    Abstract: A core crush resistant prepreg for use in making a fiber reinforced composite panel structure is provided. The prepreg comprises a woven fabric consisting essentially of carbon fiber tow strands impregnated with a hardenable polymeric resin composition. Typically the fabric has an areal weight of from about 180 to about 205 grams per square meter. The prepreg has an average fiber tow aspect ratio of less than about 15.4, a prepreg thickness of at least about 0.245 mm, and a prepreg openness of at least about 1.2 percent but less than about 6.0 percent. Preferably, the resin composition is predominantly viscous in nature and has a tan &dgr; value of between 0.9 and 2.0 at an elevated temperature between 70° C. and 140° C., and an average epoxy functionality of greater than 2.0. A method for evaluating core crush resistance properties of a prepreg is also provided.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: November 5, 2002
    Assignee: Hexcel Corporation
    Inventors: Hao-Ming Hsiao, Shaw Ming Lee, Robert Albert Buyny, Cary Joseph Martin
  • Publication number: 20020102894
    Abstract: A fabric for the forming, press and dryer sections of a paper machine, for use as a reinforcing base for a polymeric-resin-coated paper-processing belt or as a corrugator belt, or in other industrial settings where a material is being dewatered, is formed from a monofilament yarn, which is spirally wound in the form of a closed helix, adjacent turns thereof being abutted against and joined securely to one another. The monofilament yarn has a first side and a second side which are oppositely and correspondingly shaped, so that, when spirally wound in a plurality of turns, the first side fits closely into or against the second side of an adjacent and abutting turn, and adjacent spiral turns are secured to one another at the abutting first and second sides to form the fabric.
    Type: Application
    Filed: January 26, 2001
    Publication date: August 1, 2002
    Inventor: Robert A. Hansen
  • Patent number: 6265331
    Abstract: Wire screening fabric for a machine for the production and/or finishing of a pulp web, such as a paper, cardboard, or tissue web, comprising at least one layer each of lengthwise fibers, oriented in the direction of travel, and crosswise fibers, running at a transverse angle thereto, woven together. An improvement of the adhesion of the pulp web on the wire-screening fabric is accomplished in that at least some of the crosswise fibers have a roughly drop-shaped or substantially three-sided, acute-angled cross-section, whereby the pointed end is oriented roughly in the direction of travel of the wire-screening fabric.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: July 24, 2001
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventor: Karl Steiner
  • Patent number: 6261675
    Abstract: A core crush resistant prepreg for use in making a fiber reinforced composite panel structure is provided. The prepreg comprises a woven fabric consisting essentially of carbon fiber tow strands impregnated with a hardenable polymeric resin composition. Typically the fabric has an areal weight of from about 180 to about 205 grams per square meter. The prepreg has an average fiber tow aspect ratio of less than about 15.4, a prepreg thickness of at least about 0.245 mm, and a prepreg openness of at least about 1.2 percent but less than about 6.0 percent. Preferably, the resin composition is predominantly viscous in nature and has a tan &dgr; value of between 0.9 and 2.0 at an elevated temperature between 70° C. and 140° C., and an average epoxy functionality of greater than 2.0. A method for evaluating core crush resistance properties of a prepreg is also provided.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: July 17, 2001
    Assignee: Hexcel Corporation
    Inventors: Hao-Ming Hsiao, Shaw Ming Lee, Robert Albert Buyny, Cary Joseph Martin
  • Patent number: 6025282
    Abstract: Textile fabrics are formed of bundles of machined metal filaments disposed in nearly parallel arrangement in the bundles. The machined filaments have a predominantly quadrilateral cross-section, and an equivalent filament diameter of between 15 and 150 .mu.m, where the equivalent diameter is the diameter of a circle having the same surface area as the surface area of a filament cross-section.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: February 15, 2000
    Assignee: N.V. Bekaert
    Inventors: Gabriel Dewaegheneire, Philip Vansteenkiste, Wim Van Steenlandt
  • 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: 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: 5651394
    Abstract: A papermaker's fabric for use in the press section of a papermaking machine having a base fabric layer woven from either oval shaped monofilament yarns or "cabled monofilament oval yarns", which are cabled yarns comprised of two or more oval shaped monofilament yarns.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: July 29, 1997
    Assignee: Huyck Licensco, Inc.
    Inventor: Rene Marchand
  • Patent number: 5601691
    Abstract: A multilayered press screen for wet presses of a paper machine exhibits a capillary and/or adhesive water reservoir that is integrated into the cloth at a distance from both the contact surface for the web to be dewatered and from the machine running side.
    Type: Grant
    Filed: September 23, 1993
    Date of Patent: February 11, 1997
    Inventor: Franz F. Kufferath
  • Patent number: 5597646
    Abstract: Cable structures comprising at least three thermoplastic polymer filaments are prepared in a single extrusion process and exhibit performance characteristics comparable to cabled yarn constructions. The cables can be used in fabrics such as those used in paper manufacture.
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: January 28, 1997
    Assignee: Shakespeare
    Inventor: Robert A. Keller