Patents by Inventor Thomas L. Bidwell

Thomas L. Bidwell 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: 6174124
    Abstract: A multi-task capable work assist vehicle is designed for transporting an operator and items to be handled by the operator and for elevating the operator with such items supported upon a load tray elevated with the operator. Preferably the load tray is mounted for positioning along a telescoping mast which supports and elevates the operator. A load deck or load platform is provided on a body of the vehicle in addition to the load tray so that items such as packages, tools, parts, merchandise and the like can be carried by the vehicle. Load shelves may also be provided adjacent the load deck to add flexibility and capacity to the load carrying capability of the vehicle. Uses of the vehicle include order picking, in-house service maintenance, stock management, cargo delivery and the like. It is designed to be compact in size and highly maneuverable for use in narrow storage aisles and tight quarters.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: January 16, 2001
    Assignee: Crown Equipment Corporation
    Inventors: Forrest A. Haverfield, Timothy S. Quellhorst, Donald E. Luebrecht, Kevin A. Gilliland, Michael P. Gallagher, Thomas L. Bidwell, Harold A. Stammen, William J. Heidemann, Paul J. Leasor, Leif A. Norland, Thomas W. Linn, Joe H. Knapschaefer, Rob J. Stauffer, David B. Smith, John McClusky
  • Patent number: 5992572
    Abstract: A personnel carrying vehicle comprising a self propelled, steerable body, a telescoping mast attached to and extending upwardly from said body, and a personnel compartment attached to the mast and provided with a rail member that extends from the mast and around the sides. A pair of gate members, which are pivotally attached to the rail member and to the floor of the compartment, are movable from a closed position to an open position wherein said gate members extend into the compartment.
    Type: Grant
    Filed: April 2, 1999
    Date of Patent: November 30, 1999
    Assignee: Crown Equipment Corporation
    Inventors: Kevin A. Gilliland, Thomas L. Bidwell, Eugene G. Bruns, Bradley A. Burns, Joseph H. Knapschaefer, John F. McClusky, Lief A. Norland, Daniel L. Sherman, David B. Smith, Harold A. Stammen, Robert J. Stauffer, Donald E. Luebrecht, Ronald A. Grisez, William J. Heidemann