Patents by Inventor Cathy Jane Hamilton

Cathy Jane Hamilton 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: 6425430
    Abstract: A process and an apparatus for high speed manufacture of a composite sheet material, which includes a cylindrical cam-driven strand-traverse guide that can loop strands around pins projecting from a pair of advancing pin conveyors which can transfer the strands to the surface of a moving sheet, are provided. When the strands are elastic, the elastic composite sheet material made by this process and apparatus are useful in elastic components of disposable diapers, adult incontinence articles and other garments.
    Type: Grant
    Filed: July 5, 2000
    Date of Patent: July 30, 2002
    Assignee: E. I. du Pont de Nemours & Company
    Inventors: Robert Roch Ward, Joshua Benin, Cathy Jane Hamilton, Leslie C. Talo
  • Publication number: 20020084018
    Abstract: A process and an apparatus for high speed manufacture of a composite sheet material, which includes a cylindrical cam-driven strand-traverse guide that can loop strands around pins projecting from a pair of advancing pin conveyors which can transfer the strands to the surface of a moving sheet, are provided. When the strands are elastic, the elastic composite sheet material made by this process and apparatus are useful in elastic components of disposable diapers, adult incontinence articles and other garments.
    Type: Application
    Filed: February 5, 2002
    Publication date: July 4, 2002
    Inventors: Robert Roch Ward, Joshua Benin, Cathy Jane Hamilton, Leslie C. Talo
  • Patent number: 6179946
    Abstract: A process and an apparatus for high speed manufacture of a composite sheet material, which includes a cylindrical cam-driven strand-traverse guide that can loop strands around pins projecting from a pair of advancing pin conveyors which can transfer the strands to the surface of a moving sheet, are provided. When the strands are elastic, the elastic composite sheet material made by this process and apparatus are useful in elastic components of disposable diapers, adult incontinence articles and other garments.
    Type: Grant
    Filed: February 26, 1998
    Date of Patent: January 30, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Roch Ward, Joshua Benin, Cathy Jane Hamilton, Leslie C. Talo
  • Patent number: 5858885
    Abstract: A smooth elastic stretch fabric which is plain woven with weft and/or warp yarns that include combination yarns which comprise a partially oriented synthetic crystalline polymer yarn combined with an elastomeric core wherein the smooth fabric (i.e., a non-crepe effect) is the result of a tight weave characterized by the reciprocal of the warp apparent fractional cover (i.e., 1/WaAFC) being in the range between about 1.13 and about 2.06. The fabric is stretched, heat set and finished under particular conditions to provide the resultant fabric with an elastic stretch of more than about 10% and dimensions about equal to the as-woven dimensions.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: January 12, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Cathy Jane Hamilton, Becky June Lewis
  • Patent number: 5837622
    Abstract: A smooth elastic stretch fabric which is plain, satin or sateen woven with weft and/or warp yarns that include combination yarns which comprise a partially oriented synthetic crystalline polymer yarn combined with an elastomeric core wherein the smooth fabric (i.e., a non-crepe effect) is the results of a tight weave characterized by the sum of the reciprocal of the weft apparent fractional cover and the reciprocal of the warp apparent fractional cover (i.e., 1/WeAFC+1/WaAFC) being in the range between about 2.34 and about 3.11. The fabric is stretched, heat set and finished under particular conditions to provide the resultant fabric with an elastic stretch of more than about 10% and dimensions about equal to the as-woven dimensions.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: November 17, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Cathy Jane Hamilton, Becky June Lewis
  • Patent number: 5645924
    Abstract: A process for weaving an elastic stretch fabric and the product thereof are provided. The fabric is woven with weft and/or warp yarns that include combination yarns which comprise a partially oriented synthetic crystalline polymer yarn combined with an elastomeric core. The fabric is then stretched, heat set and finished under particular conditions to provide the resultant fabric with an elastic stretch of 18 to 45% and dimensions about equal to the as-woven dimensions.
    Type: Grant
    Filed: September 19, 1995
    Date of Patent: July 8, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Cathy Jane Hamilton