Patents by Inventor Thomas W. Linn

Thomas W. Linn 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: 6241047
    Abstract: A personnel carrying vehicle comprises a self propelled, steerable body, a telescoping mast attached to and extending upwardly from the body, and a personnel compartment attached to the mast. Two control handles are mounted within the personnel compartment, with one handle including a rocker mechanism mounted therein for pivotal movement within a generally horizontal plane to control steering and the other handle being rotated to controlling traction. Sensors ensure that the operator's hands are on both control handles and both feet are properly positioned on a floor of the operator's compartment before the vehicle can be moved or the platform raised; this ensures a four point stance, providing for operator stability and that the operator's hands and feet are within the operator's compartment anytime the vehicle is being moved or during lifting or lowering operations.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: June 5, 2001
    Assignee: Crown Equipment Corporation
    Inventors: Kevin A. Gilliland, Bradley A. Burns, Joseph H. Knapschaefer, John F. McClusky, Leif A. Norland, Daniel L. Sherman, David B. Smith, Harold A. Stammen, Robert J. Stauffer, Ronald A. Grisez, William J. Heidemann, Matthew P. Ranly, Thomas W. Linn, Ned E. Dammeyer, Pieter C. Kruithof, Jr.
  • 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