Patents by Inventor Ujithe Sujeewa Wickramasinghe Gunasekera

Ujithe Sujeewa Wickramasinghe Gunasekera 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).

  • Processing textile materials
    Patent number: 6701704
    Abstract: A method of processing textile material is disclosed in which the material (13) is passed along a predetermined path through a liquid jet device (50, 70, 80, 90, 100, 120, 130) applying a force to the material (13) transversely to the axis of the material (13). High pressure water is used to form one or more belts (11, 12) for applying twist to a yarn (13), sliver or roving (273), or as a jet to intermingle one or more yarns (13). The water may serve to cool the yarn (13) after beating in a false twist process.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: March 9, 2004
    Assignee: University of Manchester Institute of Science and Technology
    Inventors: Peter William Foster, Duncan Cameron Ferrier, Ujithe Sujeewa Wickramasinghe Gunasekera
  • Apparatus and method for fabrication of textiles
    Patent number: 6438934
    Abstract: A method and apparatus are disclosed for fabrication of textiles. The method includes the step of passing a yarn or product along a path through a device. The method also includes applying a rotation force to the yarn or product with at least one jet of liquid directed by the device.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: August 27, 2002
    Assignee: University of Manchester Institute of Science and Technology
    Inventors: Peter William Foster, Duncan Cameron Ferrier, Ujithe Sujeewa Wickramasinghe Gunasekera
  • Processsing textile materials
    Publication number: 20020104305
    Abstract: A method of processing textile material is disclosed in which the material (13) is passed along a predetermined path through a liquid jet device (50, 70, 80, 90, 100, 120, 130) applying a force to the material (13) transversely to the axis of the material (13). High pressure water is used to form one or more belts (11, 12) for applying twist to a yarn (13), sliver or roving (273), or as a jet to intermingle one or more yarns (13). The water may serve to cool the yarn (13) after beating in a false twist process.
    Type: Application
    Filed: January 7, 2002
    Publication date: August 8, 2002
    Inventors: Peter William Foster, Duncan Cameron Ferrier, Ujithe Sujeewa Wickramasinghe Gunasekera
  • Apparatus and method for texturing yarn
    Patent number: 6397444
    Abstract: A method and an apparatus are disclosed for texturing a yarn product. The method includes the step of passing the yarn product along a yarn path through a liquid jet arrangement. The method also includes the step of applying a force to the yarn transversely to the axis thereof.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: June 4, 2002
    Assignee: University of Manchester Institute of Science & Technology
    Inventors: Peter William Foster, Duncan Cameron Ferrier, Ujithe Sujeewa Wickramasinghe Gunasekera