Patents by Inventor Ronald Ehmen

Ronald Ehmen 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).

  • Publication number: 20050042068
    Abstract: A forklift that can move itself and loads between two heights uses multiple sets of forks to stabilize the forklift while raising and lowering loads. A conventional set of pallet forks is mounted on a forward and rearward horizontally moveable chassis. Upper stabilizing forks are selectively extended forward from the forklift chassis to rest on a surface located below the load being moved. Lower stabilizing forks extend downward and forward from the bottom of the forklift for additional stability. A set of extendable front wheels extends forward to stabilize the forklift when moving the forklift between two heights. The pallet forks are mounted on a deck that can be raised and lowered. There are two independent drive systems that move the forklift depending on whether the main drive system is on the ground or elevated. The entire forklift can be remote controlled.
    Type: Application
    Filed: August 18, 2003
    Publication date: February 24, 2005
    Inventor: Ronald Ehmen