Patents by Inventor Michael J. Gagner

Michael J. Gagner 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: 4516655
    Abstract: A remote driving system (40) for use on a material handling vehicle (10) having a rotatable upper structure (12) including means for driving said material handling vehicle (10) through powershift transmission. A hydraulic power supply (50) is provided on the upper structure (12) and the output of which is controlled by an operator in the excavator cab (32) to be supplied to the hydraulic motor (44) supported on the main chassis (26). The hydraulic motor (44) is connected to provide power input to the automatic transmission (34) for forward or reverse driving of the vehicle (10). Means are provided for selecting the gear ratio set in the powershift transmission (34) from the excavator cab (32). Hydraulic motor (44) drives a pump (68) which provides pressurized automatic transmission fluid for lubricating the powershift transmission (34) and provides power for operating selected clutches in the powershift transmission (34).
    Type: Grant
    Filed: August 12, 1983
    Date of Patent: May 14, 1985
    Assignee: The Gradall Company
    Inventors: John M. Donahue, Michael J. Gagner