Patents by Inventor Bob E. Walston

Bob E. Walston 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).

  • Isomorphic trailer hitch alignment guide device
    Patent number: 5113588
    Abstract: A trailer hitch alignment guide device, for a ball and socket hitch, wherein the guides can be mounted either to the rear or side, wherein the sighting elements on the guides are visually emblematic of the coupling elements, where one sighting element is isomorphic of the hitch ball and the other sighting element is isomorphic of the socket, and where the sighting elements are scribed with lines which visually amplify deviations from alignment.
    Type: Grant
    Filed: December 26, 1991
    Date of Patent: May 19, 1992
    Assignees: Bob Walston, Charles Walters
    Inventor: Bob E. Walston