Patents by Inventor Laurence W. Jones

Laurence W. Jones 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).

  • Speed indication system
    Patent number: 4944474
    Abstract: A system and method for indicating the speed of a locomotive during low speed continuous loading and or unloading of bulk materials such as coal. The system utilizes treadle switches which are equally spaced along a track, the treadle switches generating positional information which is transmitted to a receiver in the locomotive thereby enabling a very accurate indication of the speed of the vehicle to be displayed to the driver.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: July 31, 1990
    Assignee: Kooragang Coal Management Pty. Ltd.
    Inventor: Laurence W. Jones