Patents by Inventor David J. Lesley

David J. Lesley 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).

  • Dry textile warp size composition
    Patent number: 4391934
    Abstract: A dry textile warp size composition for use in the sizing of yarns containing natural fibrous materials, synthetic fibrous materials, or blends of same including a polyester in particulate form, a film former, and optionally a lubricant and other minor additives. The polyester is preferably rendered into particulate form by grinding at reduced temperature, includes anionic hydrophilic groups and is at least substantially saturated. A process for producing the size composition is also disclosed and claimed.
    Type: Grant
    Filed: December 5, 1980
    Date of Patent: July 5, 1983
    Assignee: ABCO Industries, Inc.
    Inventors: David J. Lesley, Lawrence C. Davis, Jr.