Patents by Inventor Graham H. Laycock

Graham H. Laycock 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).

  • Patent number: 7797968
    Abstract: Circular knit, elastic fabrics of at least one of single jersey, French terry, and fleece are disclosed that include a bare elastomeric material plated with spun and/or continuous filament hard yarns. The circular knit, elastic fabrics of at least one of single jersey, French terry, and fleece are manufactured by a method that does not require a dry heat setting step. The method requires drafting the bare elastomeric material no more than about 7× its original length when knitting to form the circular knit, elastic, single jersey, French terry, or fleece fabric. The method includes contacting the knit fabric with an aqueous solution under very low tension and under conditions of temperature and pressure for a period of time sufficient to substantially set the elastomeric material.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: September 21, 2010
    Assignee: INVISTA North America s.à.r.l.
    Inventors: Cheng-Yuan Chuang, Graham H. Laycock, Raymond S. P. Leung, Peter George Szanto, Fred Wynegar
  • Patent number: 7634924
    Abstract: Circular knit, elastic fabrics of at least one of single jersey, French terry, and fleece are disclosed that include a bare elastomeric material plated with spun and/or continuous filament hard yarns. The circular knit, elastic fabrics of at least one of single jersey, French terry, and fleece are manufactured by a method that does not require a dry heat setting step. The method requires drafting the bare elastomeric material no more than about 2.5× its original length when knitting to form the circular knit, elastic fabrics of at least one of single jersey, French terry, and fleece.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: December 22, 2009
    Assignee: Invista North America S.ár.l.
    Inventors: Cheng-Yuan Chuang, Graham H. Laycock, Raymond S. P. Leung, Elizabeth Todd Singewald, Peter George Szanto, Fred Wynegar
  • Patent number: 7117695
    Abstract: Circular-knit, elastic, single-knit jersey fabric, of spun and/or continuous filament hard yarns with bare spandex plated in every course, has a cover factor in the range of 1.3 to 1.9, a basis weight from 140 to 240 g/m2, an elongation of 60% or more and low shrinkage. The circular knit, single-knit jersey fabric is produced by maintaining the draft of the spandex at or below 2× (100% elongation) and maintaining the finishing and drying temperature(s) below the spandex heat set temperature. The knit fabric meets the end-use specifications without heat setting.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: October 10, 2006
    Assignee: INVISTA North America S.a.r.l.
    Inventors: Graham H. Laycock, Raymond S.P. Leung, Elizabeth Todd Singewald
  • Patent number: 6659139
    Abstract: A warp-stretch twill fabric having a face side and a back side and comprising non-elastomeric ends and bare elastomeric ends wherein the ratio of non-elastomeric ends to bare elastomeric ends is from abut 2:1 to about 6:1; an elastomeric end face exposure count of 2 occurs less frequently than once per 10 picks; and the elastomeric ends float over no more than 3 picks on the face side.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: December 9, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Graham H. Laycock, Raymond S. P. Leung, Tianyi Liao
  • Publication number: 20030136459
    Abstract: The invention provides a warp-stretch twill fabric having a face side and a back side and comprising non-elastomeric ends and bare elastomeric ends wherein the ratio of non-elastomeric ends to bare elastomeric ends is from abut 2:1 to about 6:1; an elastomeric end face exposure count of 2 occurs less frequently than once per 10 picks; and the elastomeric ends float over no more than 3 picks on the face side.
    Type: Application
    Filed: January 18, 2002
    Publication date: July 24, 2003
    Inventors: Graham H. Laycock, Raymond S.P. Leung, Tianyi Liao