Patents by Inventor Marvin D. Knetzer

Marvin D. Knetzer 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).

  • Patent number: 4945799
    Abstract: A guide for guiding a tool on a workpiece including a surface and an edge includes a guide rod with front and back ends. An angle section is provided for engaging the workpiece surface and edge, and is pivotally connected to the guide rod back end by a connector assembly including a pivot pin which pivotally connects an upper plate attached to the guide rod to a lower plate attached to the angle section. A clamp bolt is provided for releaseably securing the plates together in various angular, rotational orientations with respect to each other. A guide tube is provided for releaseable attachment to the tool and telescopically and slidably receives the guide rod.
    Type: Grant
    Filed: March 24, 1989
    Date of Patent: August 7, 1990
    Inventor: Marvin D. Knetzer