Patents by Inventor John H. Markwell

John H. Markwell 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).

  • Automatically adjustable climbing harness
    Patent number: 4632217
    Abstract: A seat harness for mountain climbers is formed from a continuous length of woven fabric webbing having, at intervals, transverse slots formed therethrough by the weaving process. The leg loops of the harness are formed by passing the ends of the webbing through certain of its own slots. The leg loops are drawn snug while applying the harness; one size harness thus adapts to all leg sizes, avoiding the need for leg loop adjustment buckles. A chest harness formed of the same type webbing is also disclosed.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: December 30, 1986
    Inventors: John H. Markwell, Kyle Isenhart