Patents by Inventor Chok Tan

Chok Tan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20070117483
    Abstract: Fabric laminates having superior resistance to penetration of fragments, such as shrapnel. The fabrics are formed of high-strength fibers consolidated with from about 7% to about 15% by weight of an elastomeric matrix composition, and in combination with protective layers of a polymer film on each surface of the fabric. The fabrics achieve a significant improvement in fragment resistance compared to fabrics of the prior art, while also maintaining excellent ballistic resistant properties.
    Type: Application
    Filed: November 23, 2005
    Publication date: May 24, 2007
    Inventors: Ashok Bhatnagar, Lori Wagner, Chok Tan, Brian Arvidson, Harold Murray, David Hurst
  • Publication number: 20060172132
    Abstract: Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact absorption and ballistic resistance for body armor, helmets, breast plates, helicopter seats, spall shields, and other applications; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.
    Type: Application
    Filed: August 17, 2005
    Publication date: August 3, 2006
    Inventors: Thomas Tam, Chok Tan, Charles Arnett, Qiang Zhou
  • Publication number: 20060154059
    Abstract: Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact absorption and ballistic resistance for body armor, helmets, breast plates, helicopter seats, spall shields, and other applications; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.
    Type: Application
    Filed: August 17, 2005
    Publication date: July 13, 2006
    Inventors: Thomas Tam, Chok Tan, Charles Arnett, Qiang Zhou
  • Publication number: 20060141249
    Abstract: Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact absorption and ballistic resistance for body armor, helmets, breast plates, helicopter seats, spall shields, and other applications; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.
    Type: Application
    Filed: August 17, 2005
    Publication date: June 29, 2006
    Inventors: Thomas Tam, Chok Tan, Charles Arnett, Qiang Zhou
  • Publication number: 20060051577
    Abstract: Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact absorption and ballistic resistance for body armor, helmets, breast plates, helicopter seats, spall shields, and other applications; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.
    Type: Application
    Filed: July 11, 2005
    Publication date: March 9, 2006
    Inventors: Thomas Tam, Chok Tan, Charles Arnett, Qiang Zhou
  • Publication number: 20060035078
    Abstract: High strength polyethylene yarns useful in ballistic-resistant, cut-resistant and other applications, fabrics produced from these yarns and the methods by which the yarns and fabrics are made. An untwisted yarn of the invention comprises a plurality of filaments in essentially parallel array and from about 0.5 to 5 weight percent of a water-dispersible binder material covering less than half the surfaces of the filaments. The yarn has a tenacity greater than about 17 g/d, a tensile modulus greater than about 300 g/d, fewer than 20 entanglements/meter in a scoured state and a width less than given by the formula W?0.055?{square root over (d)} where W is the yarn width in millimeters under a tensile load of 0.01 g/d measured on a flat surface and d is the yarn denier.
    Type: Application
    Filed: June 6, 2005
    Publication date: February 16, 2006
    Inventors: Thomas Tam, Chok Tan, Alfred Cutrone
  • Publication number: 20050093200
    Abstract: A process for drawing essentially diluent-free gel-spun polyethylene multi-filament yarns in a forced convection air oven and the drawn yarns produced thereby, The process conditions of draw ratio, stretch rate, residence time, oven length and feed speed are selected in specific relation to one another so as to achieve enhanced efficiency and productivity. The drawn yarns are useful in armor, composites, fishing line, ropes, sutures, fabrics and other applications.
    Type: Application
    Filed: October 31, 2003
    Publication date: May 5, 2005
    Inventors: Thomas Tam, Chok Tan, Lori Wagner, Charles Arnett