Adjustable About Spaced Horizontal Axes Patents (Class 172/659)
Concurrent adjustment (Class 172/660)
  • Dual coulter device
    Patent number: 5462124
    Abstract: A pair of coulter units arranged in a staggered relationship, each coulter unit having an upstanding shank of a height to place the shanks below a tool bar, a single, relatively flat plate disposed on a diagonal to support both shanks, and a single upstanding support member secured to the plate for mounting on the tool bar.
    Type: Grant
    Filed: September 1, 1993
    Date of Patent: October 31, 1995
    Assignee: Unverferth Manufacturing Co., Inc.
    Inventor: Ray Rawson