Patents by Inventor Robert W. Spake

Robert W. Spake 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).

  • Pre-failure tension warning device
    Patent number: 4992778
    Abstract: The invention provides a method and means for detecting and giving warning of a predetermined status of cordage through the change of a warning element from one condition to a different condition in response to a change in the status of the cordage.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: February 12, 1991
    Assignee: The University of New Mexico
    Inventors: Robert G. McKeen, Robert W. Spake