Plural Groups Of Disks Patents (Class 172/55)
  • Patent number: 6926091
    Abstract: A gardening/landscaping utility machine having a counter-rotating twin shaft system that can perform multiple types of work required for gardening/landscaping, including tilling, trench-edging, weeding, brush cutting, snow removal and lawn mowing. These processes can be accomplished by exchanging attachments from, or altering the orientation of, the counter-rotating twin shafts.
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: August 9, 2005
    Inventor: Kai S. Lee
  • Publication number: 20020040795
    Abstract: A tine assembly for a cultivator includes a first tine member having a plurality of radially extending non-planar tines. At least two tines on each tine member differ in shape from the remaining tines. The tine assembly may include a second tine member which is shaped like a mirror-image of the first tine member. When assembled on a shaft, the second tine member is off-set from the first tine member so that tines on alternating tine members contact the ground as the shaft rotates.
    Type: Application
    Filed: December 4, 2001
    Publication date: April 11, 2002
    Applicant: MTD PRODUCTS INC.
    Inventor: Usman Firdaus
  • Patent number: 6253535
    Abstract: A finger roller for an agricultural implement has a shaft with a non-circular cross-section. Two or more finger disks are pushed onto the shaft in the axial direction of the shaft. The finger disks each have a hub with a central opening having an inner contour configured to match the cross-section of the shaft. The finger disks each have elastically deformable fingers connected to the hub. The fingers of each one of the finger disks are distributed uniformly about a circumference of the hub and project away from the hub. The shaft has a circumferential surface comprised of identical circumferential portions sequentially arranged in the circumferential direction of the shaft. The finger disks each have an odd number of fingers when the circumferential portions are even numbered, and the fingers disks each have an even number of fingers when the circumferential portions are odd numbered.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: July 3, 2001
    Assignee: Artemis Kautschuk- und Kunststofftechnik GmbH & Cie
    Inventors: William Walter Paulson, Jr., Sebastian Jäger
  • Patent number: 4499747
    Abstract: A power driven disc cultivator apparatus includes a main frame to which are connected a main sub-frame assembly and at least one second sub-frame assembly. The main sub-frame assembly mounts a shaft provided with spaced cultivator discs which are constrained to rotate with the shaft. The shaft and thus the discs are power driven at a rate independent of the speed of advance of the tractor or like vehicle towing the cultivator apparatus. The main sub-frame assembly is located at the forward end of the main frame. The second sub-frames mount shafts which are not power driven. The sub-frames can be selectively positioned lengthwise and angularly relative to the main frame.
    Type: Grant
    Filed: January 12, 1983
    Date of Patent: February 19, 1985
    Inventor: Frederick H. Ewers
  • Patent number: 4450915
    Abstract: A self-propelled disk harrow apparatus having four gangs of disc members attached thereto which are rotated to propel the disk harrow and to thereby till the soil. Wheels are provided for allowing the disk harrow to travel on public roads and to aid in propelling the disk harrow. When the disc members extend too far into the soil or otherwise become ineffective in propelling the disk harrow, for example when in wet or sandy soil, the weight of the disk harrow transfers to the wheels and the wheels tend to primarily propel the disk harrow. A hydraulicly controlled pitch control is provided for controlling how deeply the discs extend into the ground. An automatic coupling structure is also provided for allowing each gang of discs to be folded for extending the effective length thereof and still providing power to all of the discs on each gang.
    Type: Grant
    Filed: August 15, 1982
    Date of Patent: May 29, 1984
    Inventor: Kermit M. DeHaai
  • Patent number: 4174756
    Abstract: A self propelled disk harrow having four gangs of disc members attached thereto which are rotated to propel the disk harrow and to thereby till the soil. Wheels are provided for allowing the disk harrow to travel on public roads and to aid in propelling the disk harrow. When the disc members extend too far into the soil or otherwise become ineffective in propelling the disk harrow, such as because of wet or sandy soil, the weight of the disk harrow transfers to the wheels and the wheels tend to primarily propel the disk harrow.
    Type: Grant
    Filed: April 3, 1978
    Date of Patent: November 20, 1979
    Inventor: Kermit M. De Haai
  • Patent number: 4117788
    Abstract: Seed sowing apparatus comprising a plurality of ground-engaging discs arranged in staggered relationship in two or more rows and driven from ground-engaging wheels, with individual seed metering devices carried by and driven by each disc to deposit seeds at regularly spaced intervals.
    Type: Grant
    Filed: April 6, 1977
    Date of Patent: October 3, 1978
    Inventor: Edward Whitehead
  • Patent number: 4051902
    Abstract: A cultivating implement has one or more forward cultivating rotors that are driven to work the top soil. During this working, stones and debris are unearthed. At the rear of the cultivating members, one or more rows of soil working members are moved through the soil and these members are soil engaging members with edges that contact the stones and push the stones down into the subsoil. The soil engaging members can be discs with edges having projections and the discs can be driven to rotate in the same or opposite direction as the rotor. Alternatively, the soil engaging members can be bars that extend down into the soil. In either case, a sieve of rods or bars can be positioned behind the rotor to allow fine soil to pass while stones are guided downwardly in front of the fine soil. The lower ends of the soil engaging members can be interconnected with a horizontal shaft on which the discs are mounted. A protective hood overlies the rotor as well as the soil engaging discs or bars.
    Type: Grant
    Filed: January 5, 1976
    Date of Patent: October 4, 1977
    Inventor: Cornelis van der Lely
  • Patent number: 4044839
    Abstract: A soil cultivating machine has side-by-side working members mounted on upwardly extending shafts that extend slightly forward with respect to the direction of travel. Each working member includes radial arms and at the outer end of each arm a tool, such as a disc or group of tines, is journalled for free rotation about a corresponding axis of rotation that extends at an angle with respect to the axis of rotation of the working member. During operation, the tools have portions that contact the ground and cut across the soil while rotating about the tools' axes of rotation and that of the working member. Such movements assist to propel the machine forwardly.
    Type: Grant
    Filed: September 16, 1975
    Date of Patent: August 30, 1977
    Inventor: Cornelis van der Lely