Patents by Inventor Brian P. Little

Brian P. Little 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: 8039095
    Abstract: This invention relates to a laminate electrical insulation part for an electrical device comprising a thermoplastic film positioned between, adjacent to, and attached to two nonwoven sheets. Each of the nonwoven sheets consists of multicomponent polymeric fibers comprising at least a first polymer and a second polymer, the first polymer having a melting point that is at least 15 degrees Celsius lower than both the melting point of the second polymer and the melting point of the thermoplastic film, and the film is attached to the nonwoven sheets by the first polymer in the nonwoven sheets. The electrical insulation part has a breakdown voltage of at least 3 kilovolts, and a surface having a dynamic frictional coefficient of 0.25 or less. This invention also relates to an electrical device component comprising the laminate electrical insulation part.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: October 18, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Peter J. Hollberg, Mikhail R. Levit, Brian P. Little, Xun Ma, Brian Keith Trask, Roger Curtis Wicks, Bruce A. Yost
  • Publication number: 20080286591
    Abstract: This invention relates to a laminate electrical insulation part for an electrical device comprising a thermoplastic film positioned between, adjacent to, and attached to two nonwoven sheets. Each of the nonwoven sheets consists of multicomponent polymeric fibers comprising at least a first polymer and a second polymer, the first polymer having a melting point that is at least 15 degrees Celsius lower than both the melting point of the second polymer and the melting point of the thermoplastic film, and the film is attached to the nonwoven sheets by the first polymer in the nonwoven sheets. The electrical insulation part has a breakdown voltage of at least 3 kilovolts, and a surface having a dynamic frictional coefficient of 0.25 or less. This invention also relates to an electrical device component comprising the laminate electrical insulation part.
    Type: Application
    Filed: May 18, 2007
    Publication date: November 20, 2008
    Inventors: Peter J. Hollberg, Mikhall R. Levit, Brian P. Little, Xun Ma, Brian Keith Trask, Roger Curtis Wicks
  • Publication number: 20080227348
    Abstract: A nonwoven printing medium is provided which is formed from a spunbond nonwoven web of continuous multiple component filaments and optionally a coating on at least one surface of the spunbond nonwoven layer. The spunbond filaments are preferably formed in a sheath-core configuration with a high strength component in the core and a sheath component resulting in an abrasion resistant surface. The printing medium has an improved combination of tensile properties, outdoor durability, and high temperature stability for printing in high temperature printers.
    Type: Application
    Filed: March 12, 2008
    Publication date: September 18, 2008
    Inventors: Tina Amick Waller, Brian P. Little, Jack Collison
  • Publication number: 20030165667
    Abstract: The present invention relates to film-fibril plexifilamentary sheet products which demonstrate improved balance of toughness and softness combined with improved balance of air permeability and liquid barrier resistance, which are prepared by point bonding a nonwoven sheet on both sides by passing said sheet between embossing rolls at a combination of bonding temperature, pressure and residence time such that the majority of bond points are not bonded to the point of translucency. The present invention relates to the use of these products in rooflining materials.
    Type: Application
    Filed: February 22, 2002
    Publication date: September 4, 2003
    Inventors: Didier Decker, Joseph R. Guckert, Brian P. Little, Robert Anthony Marin, Larry R. Marshall, Subhra K. Nath, Nico Schmit, Charles Stephen Schwartz, Faye N. Schwartz
  • Publication number: 20030032355
    Abstract: The present invention relates to film-fibril plexifilamentary sheet products which demonstrate improved balance of toughness and softness combined with improved balance of air permeability and liquid barrier resistance, which are prepared by point bonding a nonwoven sheet on both sides by passing said sheet between embossing rolls at a combination of bonding temperature, pressure and residence time such that the majority of bond points are not bonded to the point of translucency.
    Type: Application
    Filed: February 22, 2002
    Publication date: February 13, 2003
    Inventors: Joseph R. Guckert, Brian P. Little, Robert Anthony Marin, Larry R. Marshall, Subhra K. Nath, Charles Steven Schwartz