Patents by Inventor Howard G. Williams

Howard G. Williams 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).

  • Remote controlled self-powered excavator apparatus
    Patent number: 4526413
    Abstract: A self-contained system eliminates need for hydraulic or other lines from a crane to a grapple or clamshell bucket on the end of the crane hoist line. A wireless (radio or sonic) portable remote-control unit sends signals to a hydraulic power system carried above the grapple or clamshell bucket, either as an integral part of the bucket or spaced a distance up the line from the bucket suitable for avoiding damage when the grapple or clamshell bucket is used in dredging or is otherwise submerged.
    Type: Grant
    Filed: April 9, 1984
    Date of Patent: July 2, 1985
    Inventor: Howard G. Williams