Patents by Inventor William D. Hawley

William D. Hawley 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).

  • "Stress-softened elastometeric films, articles, and method and apparatus for making such films and articles
    Patent number: 5526823
    Abstract: A stress-softened thermoplastic elastomeric (TPE) film which has been subjected to tensional deformation comprising at least uniaxial strain, and having improved textural and thermal transmissivity characteristics, as compared to a native, unstretched material. Such stress-softened thermoplastic elastomeric film may be employed in a wide variety of articles, including condoms, finger cots, tubular bandages, and the like. Condoms comprising such stress-softened TPE film are described, including condoms having a main sheath comprising stress-softened and non-stress-softened areas in a pattern or other predetermined arrangement. A variety of methods and apparatus for forming stress-softened tubular articles of thermoplastic elastomeric film is disclosed.
    Type: Grant
    Filed: August 8, 1994
    Date of Patent: June 18, 1996
    Assignee: Family Health International
    Inventors: Robert G. Wheeler, deceased, William D. Hawley
  • Stress-softened elastomeric films, articles, and method and apparatus for making such films and articles
    Patent number: 5335675
    Abstract: A stress-softened thermoplastic elastomeric (TPE) film which has been subjected to tensional deformation comprising at least uniaxial strain, and having improved textural and thermal transmissivity characteristics, as compared to a native, unstretched material. Such stress-softened thermoplastic elastomeric film may be employed in a wide variety of articles, including condoms, finger cots, tubular bandages, and the like. Condoms comprising such stress-softened TPE film are described, including condoms having a main sheath comprising stress-softened and non-stress-softened areas in a pattern or other predetermined arrangement. A variety of methods and apparatus for forming stress-softened tubular articles of thermoplastic elastomeric film is disclosed.
    Type: Grant
    Filed: October 11, 1991
    Date of Patent: August 9, 1994
    Assignee: Family Health International
    Inventors: Robert G. Wheeler, deceased, William D. Hawley