Patents by Inventor Mark L. Rathbun

Mark L. Rathbun 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).

  • Chuck key assembly
    Patent number: 4652001
    Abstract: A length of elastic tubing carries a tool chuck key inserted at a free end of the tubing. The tubing is provided at its remaining end with a mounting arrangement for clamped engagement with the electrical cord serving a chuck equipped power drill. The elastic tubing permits the key and the mounting arrangement to be in frictional engagement with tubing end segments.
    Type: Grant
    Filed: March 10, 1986
    Date of Patent: March 24, 1987
    Inventors: Gordon Rathbun, Mark L. Rathbun