Patents by Inventor Robert Roch Ward

Robert Roch Ward 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).

  • Apparatus for making composite sheet
    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
  • Process and apparatus for making composite sheet
    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
  • Process for making composite sheet
    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