Screw Or Spiral Rib, Blade Or Tooth Row Patents (Class 172/119)
  • Patent number: 10653052
    Abstract: A wheel track renovator including a body attachable to a device, one or more augers mounted to the body and at least one drive connected to the one or more augers to drive the one or more augers.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: May 19, 2020
    Assignee: TYNAB PTY LTD
    Inventors: Neale Postlethwaite, Trevor Postlethwaite
  • Patent number: 10398071
    Abstract: A rotary tiller comprises a frame, a cylindrical drum rotatable relative to the frame, a plurality of tines extending from the cylindrical drum, a motor at least partially disposed within the cylindrical drum, wherein the motor is configured to rotate a motor output member, and a transmission at least partially disposed within the cylindrical drum and configured to engage the motor output member. The transmission is operable to drive rotational movement of the cylindrical drum.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: September 3, 2019
    Assignee: Ardisam, Inc.
    Inventors: Mark G. Ruppel, Randy L. Schamberger, David P. Flesch, Robert J. Ruppel
  • Patent number: 9605396
    Abstract: A multiple-stage snow thrower having a housing, a power supply operatively connected to a plurality of drive shafts for rotating a plurality of stage assemblies. Each stage assembly of the multiple-stage snow thrower is configured to move snow either axially along the axis of rotation or radially away from the axis of rotation. The first stage assembly is configured to expel snow from the housing, thereby throwing the snow away from the snow thrower. The second, third, and fourth stages assemblies are configured to push the snow toward the longitudinal centerline of the housing and then rearwardly toward the first stage assembly.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: March 28, 2017
    Assignee: MTD PRODUCTS INC.
    Inventors: Jimmy N. Eavenson, Sr., Axel Schaedler
  • Patent number: 9409365
    Abstract: A screw conveyor, in particular as screw conveyor in a pressing screw device for material to be dried, for example moist or wet waste, consists of a shaft that can be supported on bearings rotatably in the pressing screw device, and at least one spiral screw provided on the shaft to convey the material to be dried in the pressing screw. The spiral screw is formed of at least two elements, such as, for example, a basic element and at least one cover element, and at least one of the elements of the spiral screw is designed exchangeably and removably, respectively.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: August 9, 2016
    Inventors: Johann Doppstadt, Horst Berger
  • Patent number: 7874375
    Abstract: An attachment for a conventional, walk-behind power tiller for forming seed rows and adjacent furrows wherein an auger disposed perpendicularly to the seed row being formed has a larger diameter at its proximal ends and a smaller diameter at its central, inner end. The auger is rotated using power derived from the tiller to which the novel seed row forming apparatus is attached. In operation, the larger diameter outer portions of the auger dig a furrow and move the disturbed soil inwardly along the diminishing diameter of the auger, thereby depositing the soil from each side of the auger into a central berm or seed row. The apparatus provides seed row-forming capability for use with small rotary tillers and provides minimum soil tillage while readily forming planting rows.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: January 25, 2011
    Inventor: Dennis R. Pearce
  • Patent number: 7632217
    Abstract: A face exercising device comprising: a stretchable mask having a central aperture for a wearer's face; two connectable top straps connectable behind the wearer's head for securing the top to the wearer's forehead; two connectable bottom straps for attaching the mask to the wearer's chin; and a top strap affixed to the top of the mask for attaching to the back of the wearer's head.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: December 15, 2009
    Inventor: Bryan Rooney
  • Patent number: 7584804
    Abstract: A walk-behind electric working machine has a frame, an electric motor mounted on the frame, and a handle support section mounted on the frame, the handle support section having a pair of electrical terminals. A handle post has a first end portion for removable connection to the handle support section, a second end portion, and an electrical terminal disposed on an outer peripheral surface of the first end portion for electrical connection with the electrical terminals of the handle support section when the first end portion of the handle post is connected to the handle support section. A handle is removably mounted on the second end portion of the handle post and has handle portions. Grip members are mounted on the respective handle portions and are configured to be gripped by respective hands of an operator. An operation button controls power to operate the electric motor when the electrical terminal of the handle post is electrically connected to the electrical terminals of the handle support section.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: September 8, 2009
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yasumi Fukuzumi, Norikazu Shimizu, Jun Ito, Masayuki Sasaoka
  • Patent number: 7143835
    Abstract: A walk-behind electric working machine has a frame, an electric motor mounted on the frame, and a handle support section mounted on the frame, the handle support section having a pair of electrical terminals. A handle post has a first end portion for removable connection to the handle support section, a second end portion, and an electrical terminal disposed on an outer peripheral surface of the first end portion for electrical connection with the electrical terminals of the handle support section when the first end portion of the handle post is connected to the handle support section. A handle is removably mounted on the second end portion of the handle post and has handle portions. Grip members are mounted on the respective handle portions and are configured to be gripped by respective hands of an operator. An operation button controls power to operate the electric motor when the electrical terminal of the handle post is electrically connected to the electrical terminals of the handle support section.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: December 5, 2006
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yasumi Fukuzumi, Norikazu Shimizu, Jun Ito, Masayuki Sasaoka
  • Patent number: 6920939
    Abstract: A walk-behind electric cultivating machine has a body frame, an electric motor mounted on the body frame and having a motor shaft, and batteries mounted on the machine body frame for supplying electric power to the electric motor. Each of the batteries has a longitudinal axis disposed generally perpendicular to a longitudinal centerline of the motor shaft. A cultivating shaft is rotatably mounted to the machine body frame and has cultivating members mounted on the cultivating shaft for rotation therewith. A transmission mechanism is mounted on the body frame and is connected to the motor shaft for transmitting a driving power of the electric motor to the cultivating members via the cultivating shaft.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: July 26, 2005
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masayuki Sasaoka, Yasumi Fukuzumi
  • Patent number: 6820358
    Abstract: A compact self-propelled vehicle for composting windrows of compost material found in cramped confines has a low frame forming a central tunnel for mounting a flow-through conveyor. A front pick-up end has a central-flow auger system for attacking into the windrow end-on along the long axis thereof. The conveyor that has a lower intake end immediately trailing the central-flow auger system and a high discharge end for back-depositing the discharged material back into windrow formation. Hence central-flow auger system breaks apart, disintegrates and/or stirs the dug-into material while ultimately accomplishing transfer of it onto the conveyor. In essence, the vehicle worms its way through the windrow by virtue of the wheels rolling through a temporary and traveling void created between the leading pick-up end and the back-deposited material discharged by the discharge end of the conveyor.
    Type: Grant
    Filed: January 13, 2003
    Date of Patent: November 23, 2004
    Inventor: Louie Huelsewiesche
  • Publication number: 20040194983
    Abstract: Walk-behind electric cultivating machine includes an electric motor provided and a plurality of batteries provided on an upper portion of a machine body frame, and a transmission mechanism and cultivating shaft mounted to a lower portion of the machine body frame. The cultivating shaft has a plurality of cultivating claws. The electric motor has a motor shaft extending downward, the transmission mechanism is positioned immediately below the motor shaft, and the plurality of batteries are positioned around and adjacent to the electric motor. The plurality of batteries and motor are positioned adjacent to the center of gravity of the machine practically immediately above the cultivating claws.
    Type: Application
    Filed: February 26, 2004
    Publication date: October 7, 2004
    Inventors: Masayuki Sasaoka, Yasumi Fukuzumi
  • Patent number: 5678639
    Abstract: A self-contained bioremediation unit is adapted for quick coupling to a front-end loader, bulldozer or the like with no power connections between them. It carries its own engine and fuel tank for hydraulic driving of a dual horizontal auger head assembly for pulverizing, homogenizing and windrowing soil as the unit is advanced across a site. An upper auger is positioned above and forwardly of a lower auger for further pulverizing a soil first broken up by the lower auger. The unit includes its own water tank for carrying water and bacteria and a spray system for spraying the water and bacteria onto soil pulverized by the auger assembly. A hopper may be provided on the unit for dispensing fertilizer into the soil being pulverized by the auger assembly.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: October 21, 1997
    Inventor: Randy Golden
  • Patent number: 5586731
    Abstract: An improved composting apparatus is provided which is particularly suited for use with straw-like materials. The composting apparatus includes a counter-rotating drum and paddle assembly which generates a plurality of air streams in which the composting material is entrained. The air streams rotate in a vortex like pattern within a chamber to mix and aerate the composting material. The composting apparatus is configurable for being driven sideways through fence gates and the like, and has an additional configuration for being towed without requiring a trailer.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: December 24, 1996
    Assignee: Frontier Manufacturing Company
    Inventors: Bradley S. Glaze, Kenneth R. Warner
  • Patent number: 4802536
    Abstract: Interchangeable lawn dethatcher means for a rotary cultivator with removably affixed cultivating tines. The lawn dethatcher means includes a first rigid member and second rigid member each removably affixed to the rotary cultivator in place of the cultivating tines, and a plurality of rigid dethatchment tines removeably affixed in helical array to the first and second rigid members in mirror image relationship, respectively, each dethatchment tine being received through the rigid members and arrestingly clamped at the midpoint of the tine and each tine having a bent portion at each of its ends disposed in the direction opposite the intended direction of tine rotation. The lawn dethatcher means are supported at their outermost points from the rotary cultivator by independently rotatable utility wheels sized to permit the ends of the dethatchment tines to extent below the point of contact of the wheels with the lawn and thereby into contact with lawn thatch.
    Type: Grant
    Filed: January 22, 1988
    Date of Patent: February 7, 1989
    Inventor: Ronald L. O'Neal
  • Patent number: 4794708
    Abstract: A trencher machine digging boom assembly having a mounting arrangement for the digging boom wherein the boom includes a boom attaching weldment that is pivotally mounted to a boom pivot casting. The boom pivot casting is rigidly mounted to a trencher frame with a drive motor being mounted to one end of the boom pivot casting and a planetary gearbox being mounted at its opposite end. The planetary gearbox and associated drive components for the digging chain may be disconnected to permit easy and convenient removal of the digging boom for replacing its pivot bearings. Further, the torque reactions of the drive train are maintained within the boom pivot casting and are not transferred to the lift components associated with the digging boom.
    Type: Grant
    Filed: February 11, 1988
    Date of Patent: January 3, 1989
    Assignee: J. I. Case Company
    Inventors: Philip W. Schroeder, Marvin L. Morris, Stephen A. Youngers
  • Patent number: 4776290
    Abstract: A power take-off shaft driven combination machine for ground preparation which can be coupled to a tractor vehicle is equipped, with a view to a short, light and constructionally simple construction, with levelling tools 107 arranged directly behind the tractor vehicle 38 which level the wheel tracks left by the tractor vehicle 38, with a rotor-tiller 20 arranged between the levelling tools which is driven via the power take-off shaft in a direction of rotation U which sustains the direction of travel F and which throws the excavated earth against a movable rake 24 or against a flexibly arranged mat 31 and with a vertically adjustable crushing roller 202 arranged therebehind which has a peripherally at least substantially closed roller body 203 with peripherally directed rows of teeth 204 and scrapers 207 arranged between and spaced apart from the rows of teeth.
    Type: Grant
    Filed: February 9, 1981
    Date of Patent: October 11, 1988
    Assignee: Maschinenfabrik Rau GmbH
    Inventors: Willy Rau, Christian Taus
  • Patent number: 4427076
    Abstract: A tubular shaft for rotary cultivators, to which shaft (2) there is attached to a series of tools (4), the tip of each tool comprising a working face (unreferenced) at an angle .alpha. to the ground (9) where and an approach face (7) at an angle .beta. to the working face where and also where The tools (4) are attached throughout the whole length thereof, suitably spaced away from one another, there being at least one such tool per diameter, and all arranged in an orderly fasion so as to cover the whole length of the shaft with no limit, the tools being set at angles to one another so that their tips describe one or several helical paths from one end of the shaft to the other.
    Type: Grant
    Filed: August 21, 1981
    Date of Patent: January 24, 1984
    Assignee: Agrator, S.A.
    Inventor: Doreoteo J. De Aberasturi
  • Patent number: 4398607
    Abstract: The present invention comprises an adjustable wear plate which is attached adjacent the outer peripheral edge of an auger flighting. The plate includes an outer circumferential edge and an inner circumferential edge. A pair of slots extend inwardly from the inner circumferential edge, and each of these slots is provided with a plurality of notches for receiving a bolt therein. Bolts extend through the flighting of the auger and engage the notches in the slots of the adjustable wear plates. The wear plates may be adjusted by loosening the bolts and fitting them into different notches within the slots.
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: August 16, 1983
    Assignee: Roscoe Brown Corporation
    Inventor: Dennis D. Reichardt
  • Patent number: 4360065
    Abstract: A cultivator adapted to straddle a windrow of material such as compost. A frame has an improved disintegrator and aerator comprising a horizontal drum crosswise of the windrow with a plurality of cultivator blades disposed in two helical arrays between opposite ends of the drum, the arrays being circumferentially spaced apart about the drum and extending equal distances on opposite sides of a central, longitudinal, vertical plane along the center of the frame. The blades on the right and left sides of the drum have paddle portions at their ends transversely offset toward the central vertical plane and contoured to move material sidewise and heap it up into a peak along the center of the windrow.
    Type: Grant
    Filed: May 16, 1980
    Date of Patent: November 23, 1982
    Inventors: Eugene Jenison, Andrew Jenison
  • Patent number: 4340256
    Abstract: A shaft carries helically wound support surfaces for retaining cutter segments, such as diamond cutters, in a helical path. Oppositely wound helices extend continuously from the center to a limit position on each side of the cutter head. Each of the support surfaces is disposed in a direction substantially perpendicular to an extended surface to be cut or planed so as to provide a cut in the extended surface with a minimal force and without any side skipping of the cutter segments. Double wound helices provide a backup segment in the same plane and a natural balancing effect. Each of the helices in each double wound helix is uniformly spaced from the other double wound helix and is terminated at the same position at the center and at the limit position as the other helix but may be angularly displaced from the other helix by an angle of at the center and at the limit position. The cutter segments may be disposed on the helices in a balanced relationship.
    Type: Grant
    Filed: June 11, 1979
    Date of Patent: July 20, 1982
    Inventor: Jacque M. Hart
  • Patent number: 4331204
    Abstract: A tractor drawn tillage implement having a front hood, rippers, a rotary tiller and a row former, conditions tight adobe soil ready for planting in one pass. The front hood, having rock deflectors, protects the operator from airborne objects while containing dust and soil disturbed by the rippers and the tiller. The rippers fracture the soil to aid water and root penetration, to increase water retention of the subsoil and to constrain development of hard pan. The rotatary tiller, driven by an auxiliary power unit and having its axis of rotation at or submerged below the ground surface, mulches the soil and plant residue and aerates the soil commensurate with rearward airborne discharge of the soil. A row former deflects the airborne soil into rows of predetermined height and width ready for planting and provides an air tight shroud to control dust and airborne objects. A tool bar is also incorporated for supporting add ons, such as fertilizers and planters.
    Type: Grant
    Filed: March 21, 1980
    Date of Patent: May 25, 1982
    Inventor: Robert E. White
  • Patent number: 4327508
    Abstract: A drive train assembly is provided for the digging chain drive sprocket and spoil dispersing auger of a hydrostatically operated trenching machine. The drive assembly is totally enclosed and includes a hydraulic motor, a rotatable drive sprocket-hub subassembly, a planetary gearbox, and a boom lift casting. The planetary gearbox and hydraulic motor are mounted on opposite ends of the boom lift casting, and they are drivingly interconnected by a drive shaft that passes through the casting. The planetary gearbox includes a housing for rotatably mounting the spoil dispersing auger such that the gearbox housing and auger act as a heat sink to dissipate heat generated by the driven gears within the gearbox. The digging chain drive sprocket subassembly is rotatably mounted on the boom lift casting adjacent the planetary gearbox, and it is connected to the gearbox whereby the digging chain drive sprocket and auger are driven in unison by the hydraulic motor.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: May 4, 1982
    Assignee: J. I. Case Company
    Inventor: Stephen A. Youngers
  • Patent number: 4298070
    Abstract: A soil cultivating machine has a frame and a rotor journalled in the frame, the rotor being an elongated rotatable carrier with a plurality of cultivating members mounted along the length of the rotor. To simplify manufacture, the rotor carrier has a plurality of projecting mountings that extend substantially parallel to the axis of rotation. Plate or sheet cultivating members are fastened to the mountings to extend substantially at right angles to the carrier. To ensure penetration into the soil, each cultivating member has a curved outer circumference and is of knife-formation. A portion of the member extends substantially parallel to the normal direction of rotation of the rotor and a further portion is bent-over at an angle to this direction. Viewed from the side, successive cultivating members at least partially overlap one another.
    Type: Grant
    Filed: August 14, 1979
    Date of Patent: November 3, 1981
    Inventor: Cornelis van der Lely
  • Patent number: 4284146
    Abstract: A soil working machine pivotably mounts at least one rotor having serrated working elements. The rotor is pivotally connected at each end to a frame beam by a pin which can be inserted into either one of two holes located one above the other. The hole chosen governs the resistance to upward pivoting of the rotor. The machine can be hitched to a tractor either with the frame beam substantially transverse of the intended direction of operative travel, or with the frame beam inclined to this direction. Each rotor has end plates that mount forward blades and the outer plate supports a gear transmission to the rear of the respective blade.
    Type: Grant
    Filed: August 14, 1979
    Date of Patent: August 18, 1981
    Inventor: Cornelis van der Lely
  • Patent number: 4268187
    Abstract: The present spreading apparatus for road construction mixtures, such as bituminous cold mixtures, has at least two V- or U-shaped screeding structures or screeds one leading and the other trailing with respect to the working direction. The leading screed extends tandemly, partially into the angle formed by the trailing screed. The leading screed structure has a worm type conveyor connected parallel to each wall of the V- or U-shaped screed. The worm type conveyor assures the homogenity of the road construction mixture and reduces the inherent pressure of the mixture against the leveling elements. Both the leading and the trailing screed are adjustably inclined away from the working direction. The adjustment of the screed position may be made, for example, by a spindle with a hand wheel.
    Type: Grant
    Filed: October 27, 1978
    Date of Patent: May 19, 1981
    Inventors: Ulrich Krause, Peter Krause
  • Patent number: 4199030
    Abstract: A soil working implement for use in forming a raised soil bed is disclosed. The implement includes a carriage assembly and a plowing tool mounted for rotation on the carriage assembly. The plowing tool includes a cylindrical rim and an array of soil digging teeth rigidly secured to the rim and projecting radially with respect thereto for moving soil laterally relative to the line of travel of the implement. Each tooth is characterized by an inclined face slanting away from the direction of rotation of the rim and converging to form a cutting edge which is canted at an oblique angle with respect to the line of travel.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: April 22, 1980
    Assignee: Martin Concrete Engineering Company
    Inventor: John H. Chance
  • Patent number: 4192387
    Abstract: A drum attachment for conventional tillers that expands the possible uses for such tillers. A pair of drums may be detachably mounted to a tiller shaft in place of conventional tiller blades, each drum being attached to the shaft by one or more pins held by spring keeper keys passing through an interior sleeve of the drum and the shaft. Spider assemblies space the exterior surface of the drum from the sleeve while still allowing access to the pins from the exterior of the drum. On the surface of the drum a number of radially outwardly extending teeth are provided, the teeth being arranged in spiral courses and in circumferential rows. The teeth preferably are cylinders about one and one-half inch long and half-inch in diameter. The invention is useful for tilling, cultipacking, dethatching, seedbed preparation, and aeration.
    Type: Grant
    Filed: November 7, 1977
    Date of Patent: March 11, 1980
    Inventor: Theodore W. Stinson
  • Patent number: 4188738
    Abstract: A snow thrower machine and in particular an associated endless screw propeller unit which is adapted to strike or bite an encountered layer or crust of ice to break it into pieces of blowable sizes. This endless screw propeller unit includes an helicoidal blade wound around a transverse axis and having a limited number of teeth circumferentially spaced along the outer edge of the blade. The latter has outer edge portions radially diminishing toward and up to the teeth respectively, and leading the latter relative to the direction of rotation of the propeller blade whereby the leading edge of each tooth is adapted to strike and bite the ice to break it into pieces. The teeth do not protrude from the outer peripheral edge and from the leading face of the blade so as not to damage road pavement and not to impede the axial flow of snow and ice pieces towards the impeller of the machine.
    Type: Grant
    Filed: July 5, 1978
    Date of Patent: February 19, 1980
    Inventor: Paul-Eugene Vohl
  • Patent number: 4189141
    Abstract: A facial exercise mask includes an externally convex mask body made of an elastic two-way stretch cloth material. A central face portion has holes for eyes, nose and mouth of the wearer. Massive lead or omnium weights are enclosed in pockets secured inside the mask at b row, temple, cheek, nose and chin portions. A sanitary, flexible removable liner may be inserted inside the mask body. The mask body may be held in place by separate, adjustable head and chin straps, or by a single wide elastic strap engaging the back of the wearer's head.
    Type: Grant
    Filed: October 27, 1977
    Date of Patent: February 19, 1980
    Inventor: Kenneth R. Rooney
  • Patent number: 4139318
    Abstract: A method and apparatus for planing a paved roadway wherein a main frame is drivingly supported by track assemblies and a planer assembly is disposed in cutting engagement with a top portion of the paved roadway to produce a new roadway surface. An elevation positioning assembly is provided for raising and lowering the main frame in response to an external control reference such as a string line, and a cross slope positioning assembly is provided for raising and lowering one side of the main frame relative to the other side thereof for maintaining a selected cross slope. The planer assembly comprises a planing cutter that is partially surrounded by a hood that forms a material directing compartment, and spray nozzles produce a vapor mist within the compartment. A floating moldboard is yieldingly forced into contact with the roadway to the rear of the planer assembly and cooperates with a reclaimer assembly to receive and transport the removed pavement material to a selected depository.
    Type: Grant
    Filed: March 31, 1976
    Date of Patent: February 13, 1979
    Assignee: CMI Corporation
    Inventors: Herbert E. Jakob, Richard A. Silbernagel
  • Patent number: 4073245
    Abstract: A towed levee forming apparatus and method of using for forming a dike or levee which is particularly suited for use with agriculture operations. The apparatus includes a plurality of laterally spaced digger means for forming corresponding ditches in the ground surface and having a helical auger means transporting the earth removed from the ditches to a predetermined location on the apparatus. The removed earth is then deposited at the predetermined location on the earth surface and worked to form a levee of desired cross-section. The levee formation is preferably accomplished in a single pass of the apparatus.
    Type: Grant
    Filed: May 13, 1976
    Date of Patent: February 14, 1978
    Inventor: Everett Anderson
  • Patent number: 4044841
    Abstract: A device in the nature of a rotary tiller equipped for traveling through fields as well as uneven terrain, for effectively chopping up encountered clods, vegetation and debris, and mixing same with the soil. We utilize a framework in which either of two different types of bladed, couner-rotating rotors may be effectively mounted, with one type of rotor having a number of outwardly extending teeth that are adapted for penetrating the ground as the tiller device moves thereover. The outermost portion of each tooth is provided with a novel cutting blade, which may interact with a stationary shear bar, with this type of blade being well adapted for chopping up encountered vegetation and for mixing it thoroughly with the soil.
    Type: Grant
    Filed: June 27, 1975
    Date of Patent: August 30, 1977
    Assignee: Smitty's Incorporated
    Inventors: Alexander Smith, Burton D. Baggs, Jr.
  • Patent number: 4026364
    Abstract: A cultivating machine has an elongated cultivating member that is rotatably mounted to turn about a horizontal axis that extends transverse to the direction of normal travel. A plurality of tined soil cultivating means is mounted on a support shaft of the member and that shaft defines the horizontal axis of rotation. Each cultivating means comprises a group of tines that is freely rotatable about a corresponding axis of rotation. The axes of rotation of the cultivating means non-perpendicularly intersect the shaft and are formed by stub shafts that are journalled on brackets fastened to the shaft. Upon rotation of the cultivating member about the shaft, the tines of successive cultivating means engage the ground and the cultivating means each rotate to work a broad path of soil. The group of tines extend at angles to the axis of rotation of each cultivating means and twos of the cultivating means are mounted in opposing pairs that are offset with respect to adjacent pairs.
    Type: Grant
    Filed: October 15, 1975
    Date of Patent: May 31, 1977
    Inventor: Cornelis van der Lely
  • Patent number: 3963078
    Abstract: A soil cultivating implement, such as a rotary plow has soil working members mounted to revolve about an axis that extends transverse to the direction of travel. The soil working members can be tines or blades that are positioned to enter the soil in unison, lift sliced portions of soil and deposit same on the ground to the rear of the plow. The soil working members are mounted in offset relationship at locations about the axis of rotation to minimize "drag and snatch." The soil working members can be turned in addition to being revolved about the axis of rotation as a part of a rotor and more than one row of soil working members can be mounted on the implement. Scrapers, stationary or movable, can be positioned to cooperate with the soil working members to shed the soil from these members.
    Type: Grant
    Filed: November 19, 1973
    Date of Patent: June 15, 1976
    Inventor: Cornelis van der Lely