Patents by Inventor Nga K. Nguyen

Nga K. Nguyen 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: 8460022
    Abstract: A cold-shrink article having a chamber with an enlarged interior section to prevent the collapse of an end of a support core placed in the chamber.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: June 11, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Nga K. Nguyen, William L. Taylor, Carl J. Wentzel, Robert J. Schubert
  • Patent number: 7863521
    Abstract: An article of manufacture includes a protective core having at least two end portions, a plurality of support cores, and at least one cold shrinkable material held in an expanded state over at least a portion of the protective core and at least a portion of each support core. One end of each support core interconnected with a corresponding end portion of the protective core. The support cores, the protective core, and the cold shrinkable material are collectively configured to circumferentially surround an apparatus such that the cold shrinkable material compresses over a portion of the apparatus in response to removal of one of the plurality of support cores from the corresponding end portion of the protective core.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: January 4, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: James M. Campbell, Nga K. Nguyen, William L. Taylor, Carl J. Wentzel
  • Publication number: 20100279543
    Abstract: A cold-shrink article having a chamber with an enlarged interior section to prevent the collapse of an end of a support core placed in the chamber.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 4, 2010
    Inventors: Nga K. Nguyen, William L. Taylor, Carl J. Wentzel, Robert J. Schubert
  • Publication number: 20080156528
    Abstract: An article of manufacture includes a protective core having at least two end portions, a plurality of support cores, and at least one cold shrinkable material held in an expanded state over at least a portion of the protective core and at least a portion of each support core. One end of each support core interconnected with a corresponding end portion of the protective core. The support cores, the protective core, and the cold shrinkable material are collectively configured to circumferentially surround an apparatus such that the cold shrinkable material compresses over a portion of the apparatus in response to removal of one of the plurality of support cores from the corresponding end portion of the protective core.
    Type: Application
    Filed: December 20, 2007
    Publication date: July 3, 2008
    Inventors: James M. Campbell, Nga K. Nguyen, William L. Taylor, Carl J. Wentzel
  • Patent number: 7351908
    Abstract: An adaptor for controlling electrical stress in an electrical power cable includes a longitudinal insulative member and a semi-conductive member in contacting engagement with an end of the insulative member. A portion of the insulative member overlays a portion of the electrical insulation surrounding the electrical conductor, and a portion of the semi-conductive member overlays a portion of the semi-conductive shield.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: April 1, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Carl J. Wentzel, Nga K. Nguyen, William L. Taylor
  • Publication number: 20080041605
    Abstract: An adaptor for controlling electrical stress in an electrical power cable having reduced insulation thickness. The adaptor includes an insulative member and a semi-conductive member. The insulative member is configured to overlay an exposed portion of electrical insulation of the power cable to provide, in combination with the insulation of the cable, a total effective insulation thickness that that reduces electrical stress to a level the cable and cable accessory can withstand.
    Type: Application
    Filed: August 18, 2006
    Publication date: February 21, 2008
    Inventors: Carl J. Wentzel, Nga K. Nguyen, William L. Taylor
  • Patent number: 7251881
    Abstract: A method for delivering a geometric type stress relief element to a terminated electrical cable is provided. The cable contains a conductor surrounded by at least one coaxial layer of insulator, semiconductor, grounded wires and cable jacket. First, the terminated cable is tapered to expose a portion of the conductor so as to protrude beyond the insulation, which protrudes beyond semiconductor, which protrudes beyond the conductive wires. A geometric stress cone is preloaded onto a cold shrink tube. The terminated, tapered cable is inserted into the cold shrink tube. The cold shrink tube is removed and the geometric stress cone collapses onto the tapered cable. The cable is rated for supplying high voltage.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: August 7, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Nga K. Nguyen, Todd H. Richardson, William L. Taylor, Ming Zhang
  • Patent number: 5176948
    Abstract: A die-cut permanent marking article for use with an elongate object, consisting of a strip of low molecular weight heat-sensitive, transparent polymeric film having an upper and a lower surface, at least a portion of the lower surface being capable of self-adherence, at least a portion of the upper surface being imprintable, the polymeric film being fusible by the application of heat, but remaining transparent even after application of heat such that any marking placed on any portion of the article remains readable even if covered by one or more overwrapping portions of the strip.
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: January 5, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Nga K. Nguyen, James L. Sadlo