Patents by Inventor Ken Kengi Oka

Ken Kengi Oka 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).

  • Rotary cutter having suspension including air springs and shock absorbers
    Patent number: 6594980
    Abstract: A flex wing rotary cutter includes wheel axles on each of the center and wing deck frames which are linked together for simultaneous rocking by a lift cylinder coupled between the center deck frame and the center axle. Each of the support wheels of the cutter is mounted to a spindle carried at the rear end of a rocker arm that is pivotally attached, at a location between its ends, to a rear location of a respective strut cantilevered from one or the other of the axles. An air spring is coupled between the strut and a forward end of the rocker arm and a shock absorber is coupled between the rocker arm and the strut at a location between the air spring and the connection of the rocker arm with the strut.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: July 22, 2003
    Assignee: Deere & Company
    Inventors: Ken Kengi Oka, Henry Friesen
  • Rotary cutter having suspension including air springs and shock absorbers
    Publication number: 20030005677
    Abstract: A flex wing rotary cutter includes wheel axles on each of the center and wing deck frames which are linked together for simultaneous rocking by a lift cylinder coupled between the center deck frame and the center axle. Each of the support wheels of the cutter is mounted to a spindle carried at the rear end of a rocker arm that is pivotally attached, at a location between its ends, to a rear location of a respective strut cantilevered from one or the other of the axles. An air spring is coupled between the strut and a forward end of the rocker arm and a shock absorber is coupled between the rocker arm and the strut at a location between the air spring and the connection of the rocker arm with the strut.
    Type: Application
    Filed: July 9, 2001
    Publication date: January 9, 2003
    Applicant: Deere & Company, a Delaware corporation
    Inventors: Ken Kengi Oka, Henry Friesen