Patents Represented by Law Firm Ritts, Brickfield & Kaufman
  • Patent number: 4785890
    Abstract: The specification discloses an improved row cleaning apparatus to selectively clean away mulch from conservation tilled fields without cultivation of the soil. When mounted on a tractor-drawn planter unit, the cleaning action of the present invention improves depth control and planting speed of the planter unit and facilitates seed germination while retaining the mulch between crop rows for erosion control and yield enhancement. In its planter embodiment, the row cleaner disclosed herein comprises a pair of pointedly toothed wheels journaled for rotation about intersecting axes mounted on the planter unit ahead of the furrow opener. The toothed wheels are mounted with their teeth intermeshed above the soil surface and rotate in planes symmetrically inclined downwardly, outwardly, and forwardly of the direction of travel of the planter unit.
    Type: Grant
    Filed: April 20, 1987
    Date of Patent: November 22, 1988
    Assignee: Deere & Company
    Inventor: Howard D. Martin