Patents by Inventor George A. Frith

George A. Frith 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).

  • Composite elastic yarn
    Patent number: 5560192
    Abstract: A composite yarn comprising a spandex core yarn and a thermoplastic wrapping yarn in which both yarns are free to extend and contract freely one relative to the other while retaining sufficient cohesion to prevent their separation. The thermoplastics wrapping yarn is polyamide in a flat continuous filament. The wrapping yarn is wrapped in a series of alternating S and Z twists around the spandex core yarn, loops of the wrapping yarn projecting laterally as at positions where a change in the direction of twist occurs.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: October 1, 1996
    Assignee: Jones Stroud & Co., Ltd.
    Inventor: George A. Frith
  • Method of making a composite elastic yarn
    Patent number: 5481861
    Abstract: A method of making a composite yarn comprising a spandex core yarn and a thermoplastic wrapping yarn in which both yarns are free to extend and contract freely one relative to the other while retaining sufficient cohesion to prevent their separation. The thermoplastics wrapping yarn is polyamide in a flat continuous filament. The wrapping yarn is wrapped in a series of alternating S and Z twists around the spandex core yarn, loops of the wrapping yarn projecting laterally as at positions where a change in the direction of twist occurs.
    Type: Grant
    Filed: April 21, 1994
    Date of Patent: January 9, 1996
    Assignee: Jones Stroud & Co. Ltd.
    Inventor: George A. Frith