Patents by Inventor John D. Langley

John D. Langley 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).

  • Bonding man-made fabrics to form protective garments without use of stitching
    Patent number: 4670073
    Abstract: A method for bonding seams in protective garments without use of any stitching, by applying high-frequency ultrasonic waves of pressure to overlapping edges of fabric of non-woven spunbonded olefin or polyolefin having laminated to one side thereof a polyethylene or polyvinylidine chloride film.
    Type: Grant
    Filed: April 1, 1985
    Date of Patent: June 2, 1987
    Assignee: Kappler, Inc.
    Inventor: John D. Langley