Patents by Inventor John D. Sundberg

John D. Sundberg 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: 6851495
    Abstract: A speed control system for a utility vehicle, the vehicle having a forward-facing driving position and a rearward-facing seat, includes a creep control system for moving the utility vehicle, controlled from the rearward-facing seat. The vehicle includes a speed-controllable transmission operable to output power to drive a wheel. The vehicle includes a creep speed control actuator located adjacent to the rearward-facing seat and a creep speed control system operatively connected to the actuator and to the transmission. The system converts movement of the actuator to speed change of the transmission. The transmission can be a mechanically or electronically controlled hydrostatic transmission, or an electronically controlled reverser transmission.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: February 8, 2005
    Assignee: Deere & Co.
    Inventors: David Laverne Sprinkle, John D. Sundberg
  • Publication number: 20030075378
    Abstract: A speed control system for a utility vehicle, the vehicle having a forward-facing driving position and a rearward-facing seat, includes a creep control system for moving the utility vehicle, controlled from the rearward-facing seat. The vehicle includes a speed-controllable transmission operable to output power to drive a wheel. The vehicle includes a creep speed control actuator located adjacent to the rearward-facing seat and a creep speed control system operatively connected to the actuator and to the transmission. The system converts movement of the actuator to speed change of the transmission. The transmission can be a mechanically or electronically controlled hydrostatic transmission, or an electronically controlled reverser transmission.
    Type: Application
    Filed: October 19, 2001
    Publication date: April 24, 2003
    Inventors: David Laverne Sprinkle, John D. Sundberg
  • Patent number: 5203250
    Abstract: A fluid cylinder mechanism couplable to a vehicle and having a piston slidable within the cylinder, a rod couplable to an implement and shiftable within an opening in the piston, the rod being adapted to shift vertically within the piston a an implement rides over ground undulations, and an abutment mechanism coupled to the rod for abutment with the piston when the piston shifts upwardly due to selective forcing of fluid into the rod end of the cylinder by the operator to transfer the weight of the implement to the vehicle or to lift the implement for transport.
    Type: Grant
    Filed: July 29, 1992
    Date of Patent: April 20, 1993
    Assignee: Deere & Company
    Inventor: John D. Sundberg
  • Patent number: 4465396
    Abstract: An improved clamp arrangement for attaching a shank, particularly an S-tine shank, to a rectangular beam of an implement. A bracket is positioned against two adjacent faces of the beam and includes a formed end with a continuous transition zone which partially wraps around the front edge of the beam to prevent the clamp and shank from rotating horizontally. The formed end also provides increased depth of section to increase the bending strength of the bracket.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: August 14, 1984
    Assignee: Deere & Company
    Inventors: Harry M. Meinert, John D. Sundberg