Patents by Inventor Jeffery Michael Leyonhjelm

Jeffery Michael Leyonhjelm 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).

  • Suspended axle with side and oscillation control linkage
    Patent number: 6502840
    Abstract: A suspension linkage for an axle has hard mechanical oscillation stops that move relative to the vehicle frame as the axle travels vertically. The linkage uses thrust bearings to eliminate sideways movement of the axle that causes bounce steer. The linkage is a scissors linkage, having an upper link and a lower link joined together at a center pivot. The hard mechanical oscillation stops are carried by the linkage, as opposed to the vehicle frame, and thus move vertically with the axle.
    Type: Grant
    Filed: October 12, 2001
    Date of Patent: January 7, 2003
    Assignee: Deere & Company
    Inventors: Jeffery Michael Leyonhjelm, Lyal Douglas Allen, James Arthur Nagorcka