Patents by Inventor Herbert Parks Hartgrove

Herbert Parks Hartgrove 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).

  • Abrasion resistant and drapeable nonwoven fabric
    Patent number: 7232468
    Abstract: A method of forming abrasion resistant nonwoven fabrics by hydroentanglement includes providing a precursor web. The precursor web is subjected to hydroentanglement on a three-dimensional image transfer device to create a patterned and imaged fabric. Treatment with an initial pre-dye finish enhances the integrity of the fabric, permitting the nonwoven to exhibit desired physical characteristics, including strength, durability, softness, and drapeability. The pre-dye finish treated nonwoven may then be dyed by means applicable to conventional wovens. A post-dye finish may then be applied to further enhance the performance of the nonwoven fabric.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: June 19, 2007
    Assignee: Polymer Group, Inc.
    Inventor: Herbert Parks Hartgrove
  • Flame-retardant imaged nonwoven fabric
    Patent number: 7188397
    Abstract: A method of forming flame-retardant nonwoven fabrics by hydroentanglement includes providing a precursor web. The precursor web is subjected to hydroentanglement on a three-dimensional image transfer device to create a patterned and imaged fabric. Treatment with a flame-retardant binder enhances the integrity of the fabric, permitting the nonwoven to exhibit desired physical characteristics, including strength, durability, softness, and drapeability. The treated nonwoven may then be dyed by means applicable to conventional wovens.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: March 13, 2007
    Assignee: Polymer Group, Inc.
    Inventors: Herbert Parks Hartgrove, Sergio Diaz de Leon, Samuel Keith Black, Friso Joost Hijenga
  • Flame-retardant imaged nonwoven fabric
    Patent number: 6930064
    Abstract: A method of forming flame-retardant nonwoven fabrics by hydroentanglement includes providing a precursor web. The precursor web is subjected to hydroentanglement on a three-dimensional image transfer device to create a patterned and imaged fabric. Treatment with a flame-retardant binder enhances the integrity of the fabric, permitting the nonwoven to exhibit desired physical characteristics, including strength, durability, softness, and drapeability. The treated nonwoven may then be dyed by means applicable to conventional wovens.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: August 16, 2005
    Assignee: Polymer Group, Inc.
    Inventors: Herbert Parks Hartgrove, Sergio Diaz de Leon, Samuel Keith Black, Friso Joost Hijenga
  • Abrasion resistant and drapeable nonwoven fabric
    Patent number: 6815378
    Abstract: A method of forming abrasion resistant nonwoven fabrics by hydroentanglement includes providing a precursor web. The precursor web is subjected to hydroentanglement on a three-dimensional image transfer device to create a patterned and imaged fabric. Treatment with an initial pre-dye finish enhances the integrity of the fabric, permitting the nonwoven to exhibit desired physical characteristics, including strength, durability, softness, and drapeability. The pre-dye finish treated nonwoven may then be dyed by means applicable to conventional wovens. A post-dye finish may then be applied to further enhance the performance of the nonwoven fabric.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: November 9, 2004
    Assignee: Polymer Group, Inc.
    Inventor: Herbert Parks Hartgrove
  • Flame-retardant imaged nonwoven fabric
    Publication number: 20020151238
    Abstract: A method of forming flame-retardant nonwoven fabrics by hydroentanglement includes providing a precursor web. The precursor web is subjected to hydroentanglement on a three-dimensional image transfer device to create a patterned and imaged fabric. Treatment with a flame-retardant binder enhances the integrity of the fabric, permitting the nonwoven to exhibit desired physical characteristics, including strength, durability, softness, and drapeability. The treated nonwoven may then be dyed by means applicable to conventional wovens.
    Type: Application
    Filed: December 13, 2001
    Publication date: October 17, 2002
    Inventors: Herbert Parks Hartgrove, Sergio Diaz de Leon, Samuel Keith Black, Friso Joost Hijenga