Clearing Roller Patents (Class 172/608)
  • Patent number: 8408324
    Abstract: A residue clearing apparatus for a shank of an agricultural implement includes a spoked wheel adapted for attachment to the implement such that the spoked wheel rotates about a wheel axis oriented substantially horizontal and perpendicular to an operating travel direction of the implement and forward of the shank. A drive is operative to rotate the spoked wheel. The spoked wheel is oriented such that ends of spokes of the spoked wheel pass above the ground forward of the shank, and such that the ends of the spokes of the spoked wheel pass adjacent to a front face of the shank. The spokes may be resiliently or pivotally mounted to the wheel.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: April 2, 2013
    Inventor: Peter Dillon
  • Patent number: 5443125
    Abstract: A grain drill row unit includes a furrow opening device that opens a furrow into which seeds are deposited as the machine advances, and a combination gauge and press wheel rides along the ground behind the furrow opening device to firm the soil around the seed and to control the depth at which the furrow opening device operates. A paddle type scraping wheel is rotatably mounted on a support above the gauge wheel axis, the scraper wheel having edges at the outer ends of the paddles, generally parallel to the axis of the scraper wheel but angled relative to the axis of the gauge wheel, the scraper wheel edges engaging material on the periphery of the gauge wheel and being rotated by contact with said material so that the scraper wheel edges scrape the periphery of the gauge wheel.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: August 22, 1995
    Assignee: Deere & Company
    Inventors: Richard H. Clark, Steven G. Gray, John D. Long
  • Patent number: 5209050
    Abstract: The present invention relates to the wheel assembly of mowers, particularly to mulching mowers. In the preferred embodiment, each wheel assembly includes a clearing disc sandwiched between a pair of support wheels. The support wheels support the weight of the lawn mower. The clearing disc clears accumulated grass from the wheel assembly by moving between the support wheels as the wheels rotate to clear away grass clippings. The clearing disc has an outside diameter that is greater than the outside diameter of the support wheels and is mounted between the wheels in such a way that the clearing disc continually moves upwardly as the mower is moved.
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: May 11, 1993
    Inventor: Tracy Carrigan
  • Patent number: 5074363
    Abstract: The invention is directed to an apparatus for treating soil by breaking up soil clods and compacted earth. The apparatus includes a carrier frame angularly maneuverable in relation to the longitudinal or forward direction of movement of the apparatus, and in which are mounted at least two rotating parallel helical blade elements, of which at least one rolls on the ground. Each of the helical elements, whether of the same or different diameters, has a pitch and a diameter such that, when in joint rotation, the spires of one of the blade elements remains in close contact with the spires of the other blade element or elements. Each of the helical blade elements is operatively connected mechanically for simultaneous rotation with the other blade element or elements. The operative connection between the blade the blade elements is, for example, achieved by endless chains trained about pinion fixed on respective ends of rotating shafts to which the helical elements are fixed.
    Type: Grant
    Filed: August 22, 1989
    Date of Patent: December 24, 1991
    Assignee: Etablissements Franquet
    Inventors: Jean Boucton, Benoit Franquet
  • Patent number: 4293041
    Abstract: A hand-held power driven cultivator incorporating a pair of ground working implements or tillers mounted on a pair of laterally spaced vertical shafts depending from a motor and drive train enclosing housing. The tillers are counter-rotated and include interdigitating tines which engage and move the earth forwardly. A barrier freely surrounds each tiller supporting and driving shaft, and completely encloses the shaft between the tiller and the overlying housing. A scraper blade is associated with each barrier and includes a scraping edge spaced slightly from the barrier so as to enhance the ability of the barrier to repel or prevent the accumulation of weeds, roots, debris, and the like. Support and manipulation of the housing is provided for by an elongated handle including an upper fixed hand grip and power switch, and a lower adjustable hand grip.
    Type: Grant
    Filed: May 17, 1979
    Date of Patent: October 6, 1981
    Assignee: The Toro Company
    Inventors: Ronald J. Holmstadt, Robert C. Comer