Rotary Driven Tool Patents (Class 172/111)
  • Patent number: 4911247
    Abstract: A power handheld cultivating device has a protective tube for a motor drive shaft and a working implement mountable at the end of the protective tube. A miter-like gear is connectible to the end of the drive shaft and has an output shaft carrying a gear wheel which cooperates with a toothed gear rigid with a drive shaft for the working implement. The implement is mounted on a carrier which is laterally surrounded by an impact body and passages open to the outside may be provided between the impact body and the carrier.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: March 27, 1990
    Assignees: Josef Kuhlmann, Karl Schuer
    Inventors: Josef Kuhlmann, Gerd Scheipers
  • Patent number: 4901800
    Abstract: The tool includes a shaft adapted at its upper end to receive a power source. Flighting extends partially along the shaft above a pair of radially directed elongate blades which project outwardly from the shaft a distance beyond the flighting edge. A modified form dispenses with the flighting.
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: February 20, 1990
    Inventor: Alvin K. Wilson
  • Patent number: 4854404
    Abstract: A bucket auger for excavating holes for planting trees is disclosed which includes a trapezoidal cutting frame having teeth secured to the side and bottom. A central vertical shaft adapted to connect to a rotational drive mechanism is secured through upper and lower members of the frame. Two half frusto conical bucket members are pivotally suspended from the upper cross member of the cutting frame by arms such that the weight of the bucket members plus the weight of earth contained within force the bucket to remain closed during lifting of the bucket auger out of the excavation. Lifting flanges are provided for attaching lifting/opening cables to force the two bucket members open to release the earth contained therein.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: August 8, 1989
    Inventors: David R. Weber, Russell L. Weber
  • Patent number: 4836294
    Abstract: A putting cup hole digging machine is disclosed which comprises a main frame which has a fore and aft extent; a first mounting means for securing the main frame on a vehicle to permit the main frame to be vertically raised and lowered relative to the vehicle; and a first raise-lower means secured to the main frame for raising and lowering it relative to the vehicle. The machine also includes a subframe secured on the main frame by a second mounting means permitting pivotal movement of the subframe about a second horizontal axis and fore and aft movement of the subframe relative to the main frame; a cutter for cutting the cylindrical turf plug which is mounted on the subframe; and a third mounting means for securing the cutter on the subframe for vertical movement to raised and lowered positions relative to the subframe and for rotary movement relative to the subframe about a third axis. A second raise and lower means is provided to move the cutter between its raised and lowered positions.
    Type: Grant
    Filed: July 7, 1988
    Date of Patent: June 6, 1989
    Inventor: Michael Bencriscutto
  • Patent number: 4807710
    Abstract: The earth auger is provided with a clearing blade near the top of the flight for clearing loose soil from about the mouth of the drilled hole. A second blade is provided at the distal end of the auger within the contour of the flight for cutting of fibrous roots and to loosen the soil to encourage plant root growth.
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: February 28, 1989
    Inventor: William Greeley
  • Patent number: 4570721
    Abstract: A device for weeding such vine crops as melons, cucumbers or the like comprising a tool bar adapted to be carried by a tractor. The tool bar in turn carries multiple rotary agitators adapted to stir the earth and uproot plants with which they come into contact. The agitators are driven by motors and are suspended from the tool bar so that they can be raised or lowered. Springs may be used to bias the agitator to particular position and seats may be carried by the tool bar so that operators of the agitators may ride over the field.
    Type: Grant
    Filed: April 12, 1984
    Date of Patent: February 18, 1986
    Inventor: Pat Mentele
  • Patent number: 4544038
    Abstract: A rotary tiller apparatus includes a main support frame having a first member that is pivotal in a generally vertical direction and a second member that is pivotally attached to the first member and pivots in a generally horizontal direction. The rotary tiller apparatus is pivotally mounted on a vehicle, such as a tractor for removing weeds and the like between plants planted in rows. A first hydraulic cylinder is provided to pivot the first support member in the generally vertical direction. The first hydraulic cylinder is attached to the first support member at one end and to the tractor at the other end. A second hydraulic cylinder is positioned to pivotally move the second support member with one end of the second hydraulic cylinder being attached to the second support member and the other end of the hydraulic cylinder being attached to the first support member.
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: October 1, 1985
    Inventor: Robert F. Schonert
  • Patent number: 4491183
    Abstract: A retractable in-row tiller device is adapted for mounting on a movable vehicle and for tilling the ground around and between objects in a row. An outrigger arm with a rotary tiller mounted on its distal end is retracted inwardly and extended outwardly by a trapeze-type control arm which amplifies the velocity and magnitude of reciprocal motion produced by a hydraulic ram to move around and avoid objects encountered in the row. Both manually and automatically operable controls are included respectively to allow an operator to retract and extend the tiller out of and into the row as desired and to cause the tiller to be retracted and extended out of and into the row automatically upon encountering an object in the row. Manual control is also provided for the operator to override the automatic retraction control.
    Type: Grant
    Filed: March 3, 1981
    Date of Patent: January 1, 1985
    Assignee: Jack F. Anderson
    Inventors: Jack F. Anderson, Clayton Melrose
  • Patent number: 4445557
    Abstract: A method and apparatus for severing trees and other similar objects extending at least partially above and at least partially below the surface of the ground. A frame member which is mountable on a vehicle is moved in a substantially horizontal plane above the surface of the ground. A pair of circular cutting disks having sharpened peripheral edges are rotatably mounted on the frame laterally spaced from each other. The disks are arranged such that the imaginary planes formed by the sharpened edges of the disks are inclined from the surface of the ground and intersect at a point below the surface of the ground, such that the inclined planes have opposite slopes and such that the sharpened edge of one of the disks is substantially adjacent the sharpened edge of the other disk.
    Type: Grant
    Filed: March 19, 1982
    Date of Patent: May 1, 1984
    Assignee: Tree Farmers International, Inc.
    Inventor: Thomas Peters, III
  • Patent number: 4332299
    Abstract: A cultivator attachment is mounted to the side of a tractor and includes an outwardly projecting boom assembly with first and second boom sections. The boom sections telescope and a cultivator head with a rotating cultivator member is connected to the free end of the second boom section. A first hydraulic cylinder raises and lowers the boom assembly while a second such cylinder extends and retracts the second boom section to move the cultivator head inwardly toward and outwardly away from the tractor to avoid obstacles in its path. A hydraulic motor on the head rotates the cultivator member about its axis. A side tilt mechanism located at the free end of the second boom section tilts the axis of the cultivator member in the plane of the boom assembly to direct the discharge of material from the cultivator head toward or away from the tractor during cultivation.
    Type: Grant
    Filed: June 19, 1980
    Date of Patent: June 1, 1982
    Assignee: Eldon K. Chinn
    Inventors: Alvin L. Parks, W. D. McAlexander
  • Patent number: 4294181
    Abstract: A subsoil implement is disclosed that utilizes a horizontally rotatable disc that is moved beneath the surface of the ground for the purpose of cultivating or for producing a sub-surface bed for placing flowable material such as seed or soil treating gas along the prepared bed. A hollow delivery tube or rigid shaft leads to the disc and rotates about an axis defined by a bearing directly adjacent the disc. Seed or chemicals may be directed through the hollow tube form to the ground surface below the cultivator disc. Therefore, cultivating, planting or soil treatment can be accomplished with minimal effort. Trash clearing elements are provided on the rotating tube or shaft to eliminate trash build-up and minimize disruption of the soil surface.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: October 13, 1981
    Inventor: Franklin Smith
  • Patent number: 4287955
    Abstract: A rotary tiller device with a rotor disposed for rotation about a vertical axis is adapted for mounting on the lift arms of a mobile vehicle and includes a yieldable arm suspension mechanism and spring tiller teeth depending downwardly from the rotor, both of which in combination with each other provide uniform tillage depth control of the device. The rotor assembly can be moved laterally inwardly and outwardly with respect to the frame, and the beam can be adjustably swiveled about a vertical axis such that the rotor can be positioned to the left side, right side, or front of the frame or vehicle.
    Type: Grant
    Filed: June 7, 1979
    Date of Patent: September 8, 1981
    Inventor: Jack F. Anderson
  • Patent number: 4153115
    Abstract: A cultivator or rotary harrow has tined soil working members that are driven about upwardly extending axes. At least one, but preferably substantially all, of the soil working members have an overload release between the driving system and the tines so that when an immovable object is encountered by a tine, the drive to the respective soil working member is temporarily disconnected. The release can be between two parts that are normally spring biased together to maintain the driving engagement to the soil working member. In one form, a pinion gear to the soil working member has an outer toothed portion that can rotate relative to a central portion that is connected to the rotary shaft mounting the soil working member. Ball members in channels formed in the central portion are biased radially into recesses of the toothed portion. In another form, ball members are biased radially to engage the soil working member to its corresponding rotary shaft.
    Type: Grant
    Filed: March 10, 1977
    Date of Patent: May 8, 1979
    Inventor: Cornelis van der Lely
  • Patent number: 4068724
    Abstract: A roller member structured to support a cultivator type implement and compress worked soil includes spaced apart generally vertical supports on a central shaft. The supports have holes that receive elongated rod elements and position same helically around the shaft to form the outer periphery of the roller. The elongate elements can be removed and replaced by two or more groups of shorter elongate elements that span only two and/or three supports and the elongate elements can be in pairs that are offset from one another around the shaft so that a minimum number of elements are needed.
    Type: Grant
    Filed: May 2, 1974
    Date of Patent: January 17, 1978
    Inventor: Cornelis van der Lely
  • Patent number: 4058168
    Abstract: A rotary harrow has a frame for attachment to a prime mover, a portion of the frame having generally vertical shafts with soil-working members journalled therein and arranged side-by-side in a row that extends transverse to the direction of travel. Each soil-working member includes a generally horizontal support, the inner end of which is connected to its respective shaft and the outer end extends radially from the shaft with a tine holder for retaining a single upright tine. Adjacent soil-working members are driven in opposite directions and the working members can be arranged in groups which are positioned out of phase with respect to one another.
    Type: Grant
    Filed: June 17, 1976
    Date of Patent: November 15, 1977
    Inventor: Cornelis van der Lely
  • Patent number: 4055221
    Abstract: A soil-cultivating implement has soil-working members mounted for rotation about corresponding upwardly extending axes. A soil-working tool, preferably one or more tines, is connected to a support of the soil-working member by at least one quick release fastener. The tool or tine can be a torsioned spring steel strip or a rod that has a spring coil. Each tine can have one or more operative soil-contacting ends that are spaced apart from one another. When the operative ends are located one above the other, the soil-working member can work deep in the soil. The fastener can be a pin that extends horizontal and at right angles to the axis of rotation of the soil-working member so that the operative ends can pivot to some extend about the fastener. The ends of each tool or tine can extend in different directions from one another and tines in pairs can be mounted on the same support.
    Type: Grant
    Filed: July 17, 1975
    Date of Patent: October 25, 1977
    Inventor: Cornelis van der Lely
  • Patent number: 4051903
    Abstract: A cultivating machine has one or more working members that are driven to rotate about upwardly extending axes. Each working member is connected to a drive transmission to turn and, spaced apart soil working members mounted for free rotation about respective axes, are moved through the soil. At least two of the soil working members are different from one another and capable of workingthe soil in different ways. One member can be a group of tines that are freely rotatable about an upwardly extending axis and an adjacent member can be a disc that rotates about a horizontal axis. Each member includes a stub shaft that is journalled in a universal mount so that the members can be released and exchanged to meet varying soil conditions. The mount has a pivot connection and a setting device to retain the soil working member at various working angles. Also, the stud shaft is adjustable within a sleeve of the mount.
    Type: Grant
    Filed: October 9, 1975
    Date of Patent: October 4, 1977
    Inventor: Cornelis van der Lely
  • Patent number: 4050519
    Abstract: A soil cultivating machine has soil working members that are driven about upwardly extending axes. Each working member has radial arms and a tined cultivating rotor is pivotably connected to the outer end of each arm. Each cultivating rotor is freely rotatable about an upwardly extending axis and an adjustment device can be set to vary the position of the cultivating rotor about the pivot connection to its corresponding arm to change the working positions of the tines. The cultivating rotor can use different tines depending on the condition of the ground being worked.
    Type: Grant
    Filed: October 9, 1975
    Date of Patent: September 27, 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
  • Patent number: 4043401
    Abstract: A cultivating implement has side-by-side soil working members journalled in a hollow frame portion. Each member includes a support with hub that is connected to the lower end of a corresponding shaft. The shafts of the soil working members have meshed pinions on their upper ends that are housed in an upper chamber of the frame portion. The support and hub are housed substantially in their entireties within the frame portion and the lower side of each hub has apertured tags with pins that comprise quick release fastenings for downwardly extending tines.
    Type: Grant
    Filed: July 17, 1975
    Date of Patent: August 23, 1977
    Inventor: Cornelis van der Lely
  • Patent number: 4043400
    Abstract: This invention relates to harrows, such harrows being of the kind comprising a frame portion that is movable over the ground and that is provided with a plurality of soil working members or rotors arranged to turn about corresponding upwardly extending axes, the frame portion being sustained from the ground during the use of the harrow by a rotary supporting member.
    Type: Grant
    Filed: October 13, 1976
    Date of Patent: August 23, 1977
    Assignee: C. van der Lely N. V.
    Inventors: Cornelis van der Lely, Ary VAN DER Lely
  • Patent number: 4033416
    Abstract: A cutting blade is carried on a shaft rotatable about an axis positioned adjacent a row crop. The blade extends across the longitudinal centerline of the row and cuts plants as the machine moves forward until a sensing means registering on forwardly positioned plants actuates the knife and causes it to rotate rearwardly along the row and away from the next plant in the row to be retained. The rotation continues until a knife portion is now positioned on the front side of the plant to be retained and a portion of the knife extends rearwardly along the side opposite the axis of rotation of the blade. The machine continuing to move forward will again clear plants from the row until the sensing means actuates the blade to rotate again thereby causing predetermined plants to be retained while plants inbetween are thinned out.
    Type: Grant
    Filed: April 17, 1975
    Date of Patent: July 5, 1977
    Assignee: Orthman Manufacturing, Inc.
    Inventor: Henry K. Orthman
  • Patent number: 4003437
    Abstract: A harrow having two horizontal elongated tined members the ends of which are driven around substantially vertical axes and including a soil contacting elongated element mounted to each of the tined members.
    Type: Grant
    Filed: July 13, 1972
    Date of Patent: January 18, 1977
    Inventor: Ary van der Lely
  • Patent number: 3981366
    Abstract: A cultivator implement has at least one frame portion that houses a row of soil working members connected to driving means which rotates those members about corresponding upwardly extending axes. A supporting frame is designed to overlie and support the soil working members during operation and/or transport of the implement. The supporting frame comprises a plurality of substantially parallel beams that extend transverse to the normal direction of operative travel. The beams are spaced apart and positioned at different levels above the ground and interconnected with plates for strength and to properly support the implement. The beams are of angular, preferably square, cross section so that a diagonal of a beam extends substantially vertical for further strength. A coupling member is interconnected to the beams with struts so that the implement can be attached to a prime mover for operation.
    Type: Grant
    Filed: March 24, 1975
    Date of Patent: September 21, 1976
    Inventors: Cornelis van der Lely, Ary VAN DER Lely, Cornelis Johannes Gerardus Bom