Vertical Cut Patents (Class 56/256)
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Patent number: 11647699Abstract: A tree saw attachment for a modular landscape trimmer is disclosed. In one embodiment, the tree saw attachment is provided with a drive unit having a drive shaft operably connectable to a motive source and a transmission operably connected to the drive shaft. An anvil is connected to and extending from an output side of the transmission of the drive unit, and a blade is connected to the output shaft of the transmission. The blade has an arcuate outer peripheral edge with teeth formed along a portion thereof forming a cutting edge so as the output shaft is rotated, the distance between the cutting edge and a central axis of the output shaft increases until the blade has substantially completed one rotation. Rotation of the blade causes the blade to move transversely with respect to the anvil to engage and cut material positioned between the blade and the anvil.Type: GrantFiled: October 15, 2019Date of Patent: May 16, 2023Assignee: Dinotooth Cutter, LLCInventors: Bernard Luttmer, Kelly Coover
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Publication number: 20140182256Abstract: A device for mowing, comprising a rotatable shaft (6) and a plurality of supporting structures (7) arranged along the shaft (6), each of which structures supports a plurality of circumferentially arranged and radially extending blades (8), each of which blades exhibits a radially extending blade edge (9) which extends to the free blade end (10) and which, on rotation of the aforementioned shaft (6), are arranged for mowing. Each blade edge (9) is angled in relation to a blade plane extending perpendicularly in relation to the aforementioned shaft (6) at an angle (a) of less than 45°, and the free blade ends (10) of the blades (8) in each of the aforementioned supporting structures (7) are distributed between at least three blade positions (KP) that are mutually separated in the axial direction.Type: ApplicationFiled: June 28, 2012Publication date: July 3, 2014Applicant: MATS FISCHIER I BÅSTAD ABInventors: Mats Fischier, Sture Larsson
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Publication number: 20110308223Abstract: A method for mechanically processing or straightening a boundary line of a groundcover of grass, turf, garden plantings, forest, or the like adjacent to a utility area, including executing a cutting movement along the edge area of the groundcover to separate the groundcover from the utility area along the boundary line. For this purpose, a rotating, motor-driven, more-or-less circular separating disk, which penetrates into the edge area of the groundcover of grass, etc. along a certain boundary line, and which is set at an acute angle to the forward travel direction, is mounted on a support frame of a self-propelled work machine.Type: ApplicationFiled: June 14, 2011Publication date: December 22, 2011Applicant: UELI BALDINGER GMBHInventor: Ueli BALDINGER
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Patent number: 7938193Abstract: The vehicle mounted edging device provides a safe and efficient means for edging grass and soil adjacent to improved surfaces. The device is attached to the remotely actuated bed of a utility vehicle and utilizes the lifting capabilities of the bed for its operation. When the disc is in the cutting position, the operator of the utility vehicle positions the vehicle near the edge of the surface to be maintained and lowers the remotely actuated bed of the utility vehicle to place the disc adjacent to the surface to be maintained. The operator then drives the vehicle parallely to the edge of the path and remove the unwanted grass. The vehicle mounted edging device effectively guides the utility vehicle along the edge of the path so that minimal steering is required and is oriented to enable the operator to easily monitor the edging operation.Type: GrantFiled: April 17, 2008Date of Patent: May 10, 2011Inventor: Bruce Lee Baker
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Publication number: 20080196373Abstract: A turf cutting unit includes a reel assembly mounted to a frame and having a plurality of reel blades rotatable about a reel axis extending substantially parallel to the ground. A drivingly rotatable groomer includes a plurality of spaced apart and substantially vertically oriented cutting plates. An adjustment mechanism is operable to move the reel assembly relative to the turf to set a turf cutting height. The adjustment mechanism is operable to adjust the position of the cutting plates to set a depth of cut that the groomer cutting plates engage the turf. The adjustment mechanism limits a maximum depth of cut of the groomer cutting plates based on the cutting height of the reel assembly. A method of operating a turf cutting unit is also discussed.Type: ApplicationFiled: February 19, 2008Publication date: August 21, 2008Applicant: TEXTRON INC.Inventors: Kenneth R. Wilson, Jonathan Maturan
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Patent number: 7128164Abstract: A support has a post. The post has a circular cross sectional configuration. The post extends upwardly from the support. An arm has a collar. The collar is rotatably received on the post. The collar is pivotably coupled to the collar with a finger. The finger has a vertical aperture there through. A wheel assembly has a drive wheel centrally and a cutting wheel. The cutting wheel is outboardly and has a diameter greater than the diameter of the drive wheel. The wheel assembly has a clevis. The clevis is inboardly and has vertical aperture and a pin.Type: GrantFiled: August 3, 2005Date of Patent: October 31, 2006Inventor: Thomas C. Boland
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Patent number: 6857481Abstract: A blade is formed of a vertical segment. The vertical segment has a central aperture. The vertical segment further has long parallel side edges, short parallel end edges and upturned parallel ends. Each end has a leading edge and a trailing. A horizontal cutting edge is formed into each leading edge of the upturned parallel ends. A vertical cutting edge is formed into each long edge adjacent to a horizontal cutting edge.Type: GrantFiled: April 3, 2003Date of Patent: February 22, 2005Inventor: Johnny Hayes
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Patent number: 6701700Abstract: An auxiliary edge trimmer apparatus is attached to a lawnmower and includes a flywheel drive wheel portion connected to the lawnmower drive shaft. An attachment assembly is connected onto portions of the lower housing wall of the blade housing of the lawnmower. A trimmer assembly is attached to the attachment assembly and includes a bearing portion connected to the attachment assembly, a rotatable shaft assembly received by the bearing portion, a driven wheel connected to a proximal end of the rotatable shaft assembly, and a trimmer blade connected to a distal end of the rotatable shaft assembly. In accordance with an alternatively preferred embodiment of the invention, a manually actuatable control cable is attached through suitable structure to the drive shaft supported on the lawnmower housing between the drive wheel and the auxiliary trimmer apparatus to control engagement and disengagement thereof.Type: GrantFiled: August 19, 2002Date of Patent: March 9, 2004Inventor: Stephen Timothy Keane
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Patent number: 6464015Abstract: A cutting and mulching attachment for a lawn edger that creates a clean edge to a landscaped area. The attachment comprises a flat, circular cutting blade and two or more flat mulching blades extending laterally from the cutting blade. Each mulching blade has a toothed edge that faces in the direction of the cutting blade rotation. The plane of each mulching blade defines an acute angle with respect to the plane of the cutting blade. The teeth of one mulching blade are offset from the teeth of the other mulching blade so that, as each mulching blade sweeps through the turf, its teeth remove any ridges of turf left behind by the teeth of the other blade.Type: GrantFiled: July 25, 2001Date of Patent: October 15, 2002Inventor: J. Thomas Jones
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Patent number: 6434920Abstract: An auxiliary edge trimmer apparatus is attached to a lawnmower and includes a flywheel drive wheel portion connected to the lawnmower drive shaft. An attachment assembly is connected onto portions of the lower housing wall of the blade housing of the lawnmower. A trimmer assembly is attached to the attachment assembly and includes a bearing portion connected to the attachment assembly, a rotatable shaft assembly received by the bearing portion, a driven wheel connected to a proximal end of the rotatable shaft assembly, and a trimmer blade connected to a distal end of the rotatable shaft assembly. In accordance with an alternatively preferred embodiment of the invention, a manually actuatable control cable suitably is attached to the drive shaft supported on the lawnmower housing between the drive wheel and the auxiliary trimmer apparatus to control engagement and disengagement thereof.Type: GrantFiled: July 10, 2000Date of Patent: August 20, 2002Inventor: Stephen Timothy Keane
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Patent number: 6247539Abstract: Implements for attaching to a hand-held, powered “Weed-Eater” type device to perform various work or chores (filament cutting, blade cutting, brushing, blowing, mixing, etc.). After disconnecting the device's original implement typically a spool of filament (6) with a bumper feed (7), an initial, cultivator/cutter implement (10), cylindrical in shape with a substantially solid, circular top (12) and a relatively thin, continuous wall of constant thickness, is attached by an appropriate threaded member (e.g. a nut or bolt, usually with one or more washers) to the bottom end of the powered device (FIGS. 1A-D) through a central opening (13). The cultivator's top includes a series of circumferentially spaced, “snap-in” openings (14; e.g. two or more) through and into which other implements (e.g. those of FIGS. 3-20) can be attached (FIGS.Type: GrantFiled: February 5, 1999Date of Patent: June 19, 2001Inventor: Orlando Jerez
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Patent number: 6179059Abstract: A dual blade assembly for a lawn edger, the assembly comprising first (140) and second (142) generally rectangular blades arranged in a substantially cross shaped configuration for rotation about a substantially central axis (R). Each of the first (140) and second (142) blades having a central region between two end cutting regions, at least one protuberance (144) in the central region and at least one recess (148) in the central region. The promuberance(s) (144) of one of the first (140) and second (142) blades is adapted to engage with the recess(es) (148) of the other of the first (140) and second (142) blades to counteract relative movement between the first (140) and second blades (142) about the rotational axis (R).Type: GrantFiled: June 10, 1999Date of Patent: January 30, 2001Inventors: John Arthur Notaras, Angelo Lambrinos Notaras
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Patent number: 6125943Abstract: An edger-trencher is described for landscaping procedures. Instead of the usual jolting an operator receives when using traditional power assisted edger-trencher devices, in the instant invention a pivotable swing arm with cutting blade attached at one end pivots upwards and away from the soil containing an obstruction. The cutting blade then falls back rapidly and repeatedly under the influence of gravity, causing a series of pick like actions on the soil obstruction until it is overcome and normal edging or trenching resumes. The pivotable swing arm-cutting blade combination is suitable for mounting on stand-alone gasoline powered, belt-driven edger-trenchers. Alternatively, this stand-alone unit can be modified to have a quick connection to a similarly modified commercial or residential mower of the rider or walk behind type.Type: GrantFiled: March 12, 1997Date of Patent: October 3, 2000Inventor: Charles S. Valois
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Patent number: 6085507Abstract: An auxiliary edge trimmer apparatus is attached to a lawnmower and includes a flywheel drive wheel portion connected to the lawnmower drive shaft. An attachment assembly is connected onto portions of the lower housing wall of the blade housing of the lawnmower. A trimmer assembly is attached to the attachment assembly and includes a bearing portion connected to the attachment assembly, a rotatable shaft assembly received by the bearing portion, a driven wheel connected to a proximal end of the rotatable shaft assembly, and a trimmer blade connected to a distal end of the rotatable shaft assembly. In accordance with an alternatively preferred embodiment of the invention, a manually actuatable control cable is suitably attached to the drive shaft supported on the lawnmower housing between the drive wheel and the auxiliary trimmer apparatus to control engagement and disengagement thereof.Type: GrantFiled: January 11, 1999Date of Patent: July 11, 2000Inventor: Stephen Timothy Keane
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Patent number: 5904033Abstract: A vine cutter for cutting entangled vines of potato plants in front of a potato harvester so that the vines do not become entangled and accumulated upon a front portion of the potato harvester. The inventive device includes a frame having a pair of upper members and a pair of opposing lower members, a first disc journaled to the frame, a second disc journaled to the frame below the first disc and having a ground engaging rim attached coaxially, and a motor mechanically connected to the first and second discs. The first disc and the second disc are vertically orientated, and a portion of the discs overlap and are juxtaposed to one another. The pair of discs preferably include a plurality of notches projecting into their respective outer perimeters. The discs rotate at a differential to one another from 1.2 to 2.5 depending upon the type of vines being cut. The ground engaging ring attached to the second disc determines the depth of penetration by the second disc into the ground.Type: GrantFiled: July 2, 1997Date of Patent: May 18, 1999Inventor: Marvin J. Landeis
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Patent number: 5857315Abstract: An auxiliary edge trimmer apparatus is attached to a lawnmower and includes a flywheel drive wheel portion connected to the lawnmower drive shaft. An attachment assembly is connected onto portions of the lower housing wall of the blade housing of the lawnmower. A trimmer assembly is attached to the attachment assembly and includes a bearing portion connected to the attachment assembly, a rotatable shaft assembly received by the bearing portion, a driven wheel connected to a proximal end of the rotatable shaft assembly, and a trimmer blade connected to a distal end of the rotatable shaft assembly. In accordance with an alternatively preferred embodiment of the invention, a manually actuatable control cable is attached to the drive shaft supported on the lawnmower housing between the drive wheel and the auxiliary trimmer apparatus to control engagement and disengagement thereof.Type: GrantFiled: September 25, 1996Date of Patent: January 12, 1999Inventor: Stephen Timothy Keane
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Patent number: 5842331Abstract: A weed remover includes a pivoting arm connected to a wheeled chassis, and a rotary wire brush attached to the forward end of the pivoting arm. A belt is positioned to encircle a wire brush pulley coaxial with the wire brush, and a drive pulley driven by a motor. The wire brush can be raised off the ground or lowered to engage it by moving a lever connected to the pivoting arm. When the wire brush is in the raised position, the pulleys are close together and the belt is relaxed, so that the belt is disengaged from the pulleys, and the wire brush is deactivated. When the wire brush is in the lowered position, the pulleys are moved apart, and the drive belt is pulled taut therebetween, so that drive is transferred to the wire brush. The wire brush is spun at high speed to remove weeds growing from cracks on a hard ground surface, such as a sidewalk or driveway. The wire brush is stiff enough to remove the weeds flush to the ground surface, but compliant enough to not harm the ground surface.Type: GrantFiled: July 24, 1997Date of Patent: December 1, 1998Inventor: Edward F. Klee
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Patent number: 5826667Abstract: A powered lawn edger which is steerable by a walking operator in the manner of a wheelbarrow. The edger has a Y-shaped frame including a pair of handles each with handlegrips. A power unit is mounted on the frame between the handlegrips and a ground engaging wheel. A cutting blade is rotatable about an output shaft of a gear box which is powered from the power unit via a centrifugal clutch having a brake. A debris deflector is mounted on the axle of the wheel. An adjustment mechanism is provided to adjust the height of the cutting blade relative to the ground. The height of the debris deflector relative to the ground remains unchanged when the height of the cutting blade is adjusted.Type: GrantFiled: June 6, 1994Date of Patent: October 27, 1998Inventors: John Arthur Notaras, Angelo Lambrinos Notaras
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Patent number: 5577375Abstract: A lawn care apparatus combining mowing, de-thatching, and mulching action with improved grass clippings and thatch removal characteristics, designed for operation over various types of lawn or turf, where the cutting assembly consists of a shaft with a plurality of readily replaceable blades mounted radially about the shaft which itself is mounted on the apparatus housing and rotating about a horizontal axis transverse to the direction of travel of the apparatus. The rotation of the cutting assembly being in the opposite direction to the rotation of the wheels of the apparatus. The housing designed to curve conformably near the outside edge of the blades over the top portion of the cutting assembly providing for improved gathering action for the grass clippings and thatch into a container attached to and removable from the apparatus. The apparatus having a power means mounted thereon to provide for rotation of the cutting assembly and propulsion of the apparatus.Type: GrantFiled: March 30, 1995Date of Patent: November 26, 1996Inventor: Andrew T. Tillison, Sr.
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Patent number: 5526636Abstract: Vacuum mower with a device to create a suction air stream for sucking blades of grass (14) into an intake opening (16). The intake opening (16) can be applied at an angle of up to 80 degrees to the direction of the growth of the grass blades which creates a deep reaching effect of the vacuum so that grass can be effectively sucked in and cut especially close to walls, trees, roadside posts (1), etc. The invention can be used by itself or as an attachment to conventional lawn mowers.Type: GrantFiled: June 15, 1994Date of Patent: June 18, 1996Inventor: Leopold Posch
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Patent number: 5497606Abstract: There is disclosed an improved lawnmowing and edging apparatus wherein a generally conventional gasoline powered push mower or walk-behind mower is provided with an edger mounted on the front of the deck of the mower slightly outside of the track of one of the front wheels, the edger having a high speed rotating blade which lies in a vertical plane and which can be raised to an inoperative position or lowered to an operative position. The edger is provided with a very simple belt and pulley drive which causes the edger to be powered only in its lowered position and which derives its motive power from a power-take-off extending outward from the lawnmower engine substantially at right angles to the direction of travel of the mower. The power-take-off shaft is thereby substantially parallel to the shaft of the edger and a simple trouble free and safe power drive mechanism can be provided for the edger.Type: GrantFiled: September 30, 1994Date of Patent: March 12, 1996Inventor: Robert H. Baxter
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Patent number: 5493851Abstract: With a limited separating spacing immediately upstream of a mowing implement rotating in a horizontal plane, a lawnmower has an upward extraction implement rotating in the same direction as the advance direction about a horizontal transverse axis and which is located in a common casing, but in a separate casing chamber. The upward extraction implement is disengagingly driven by means of a gear by the drive motor of the mowing implement and is essentially located between the front wheels, which are vertically adjustable for the joint setting of the working height of the two implements. Thus, it is possible to in each case separately and also jointly and simultaneously work with the two implements, so that numerous use possibilities exist.Type: GrantFiled: September 9, 1994Date of Patent: February 27, 1996Assignee: Werner KressInventors: Johann Katzer, Wolfgang Lindermeir, Franz Lopic, Christian Stephany, Werner Kress
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Patent number: 5490371Abstract: An edger head for a portable edger. The edger head has a housing, a cutting element, first structure for mounting the cutting element to the housing for movement relative to the housing in a predetermined path, a debris guard, and second structure for mounting the debris guard in an operative position on the housing. The debris guard has first and second flaps, with the first flap being repositionable relative to the second flap.Type: GrantFiled: October 11, 1994Date of Patent: February 13, 1996Assignee: Echo IncorporatedInventor: Frank R. Potucek, III
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Patent number: 5479765Abstract: An improved cutter blade assembly for lawn edging machines, the improvement comprising two cutting blades having the central portions of the first and second blades nested flat face against flat face and mounted on a powered drive shaft, the blades extending oppositely and outwardly from the horizontal drive shaft in a plane normal to the axis of the drive shaft. Each of the cutting blades preferably contains a series of progressively spaced, stepped mounting holes, a series of stepped locking holes, and a locking dog to provide an adjusting means for extending the combined length of the two cutting blades to compensate for wear. As the diameter of the cutter blade assembly is shortened from wear, each cutting blade may then be disengaged from the drive shaft and moved radially and oppositely outward and may then be re-engaged onto the drive shaft through the next appropriate mounting hole. Thus, the cutter blade assembly may be restored approximately to its original cutting diameter.Type: GrantFiled: March 16, 1995Date of Patent: January 2, 1996Inventors: Albert Wall, G. Warren Holly
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Patent number: 5383330Abstract: A hand-held edger is disclosed which is so constructed that the lower portions of the gear box and the safety cover member are prevented from directly scraping against the ground during trimming operation to enable abrasion thereof to be avoided, and that tendency to be caught by lawn grasses and liability to wobble are extremely reduced to enable improved operational properties to be attained. The hand-held edger comprises a supporting rod 14 one end of which is connected to a prime mover, a gear box 20 connected to the other end of said supporting rod 14, a rotary blade 22 which is driven by power transmitted from said prime mover via said gear box 20, a safety cover member 12 which covers said rotary blade 22, and a traveling wheel 17 journal-supported by a rear portion 12b behind said gear box 20, wherein a ring-shaped traveling auxiliary wheel 30 is rotatably mounted over the circumference of said gear box 20.Type: GrantFiled: January 3, 1994Date of Patent: January 24, 1995Assignee: Kioritz CorporationInventors: Yoetsu Yokocho, Michiyasu Kuwano, Fumihiko Aiyama
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Patent number: 5301757Abstract: An edging machine having a frame with a handle at one end, a prime mover mounted on the frame, an edger blade rotatably connected to the frame, a first wheel mounted on the frame so as to support the frame above a surface, a second wheel interconnected to the frame and arranged in tandem with the first frame, an adjustment lever interconnected to the second wheel for changing a distance of the frame from the surface. A guide member is rotatably connected to the frame so as to have a surface extending below the frame. The guide member is positioned in parallel relationship to the edger blade. The second wheel is rotatably mounted to a wheel bar. The wheel bar is pivotally connected to the frame on a side of the frame opposite the edger blade. The adjustment lever is interconnected to the wheel bar so as to controllably adjust the position of the second wheel relative to the frame.Type: GrantFiled: August 21, 1992Date of Patent: April 12, 1994Inventor: Milton C. Kelley, Jr.
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Patent number: 5297637Abstract: An agricultural tool including a disc blade incorporating hard wear resistant inserts for attachment to an axial member of an agricultural tool for rotation through the soil. The disc blade includes parallel spaced flat round front and rear surfaces having a central cylindrical opening. The front surface tapers radially outwardly to the rear surface thereby defining a common outer rim having a knife edge. A plurality of notches are spaced circumferentially along the front surface of the disc blade and inwardly from the outer edge of the front surface of the disc blade. The notches are configured to receive a plurality of hard wear resistant inserts to provide improved wear resistance.Type: GrantFiled: June 15, 1992Date of Patent: March 29, 1994Assignee: Kennametal Inc.Inventor: Don C. Rowlett
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Patent number: 5226486Abstract: A lawn edger is arranged for mounting a lawn edging tool thereon, wherein the apparatus includes a support plate movably mounted by underlying aligned wheel members. A clamp mounted to a top surface of the support plate is positioned rearwardly of a medial forward edge of the support plate, with the medial forward edge having a downwardly projecting abutment guide plate mounted orthogonally and downwardly therefrom.Type: GrantFiled: March 30, 1992Date of Patent: July 13, 1993Inventor: Johnnie J. Naiser
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Patent number: 5183120Abstract: With a view to accelerating growth of lawn in the fairway of golf course, or other lawn-covered ground, there is provided a lawn cutting apparatus which forms incised grooves of a predetermined depth in the lawn-covered grown surface by rotating of the cutting blade. Using this cutting blade, contact-resistance between the cutting blade and the inner faces of the incised grooves can be made as low as possible at the time of forming the incised grooves, and the incised part of the lawn covered ground can be finished with good outer appearance.Type: GrantFiled: September 20, 1991Date of Patent: February 2, 1993Assignee: Y.M. Golf Course Equipment Co., Ltd.Inventor: Hayataro Watanabe
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Patent number: 5081829Abstract: On golf courses it is common practice for the golf club to provide carts for the golfers who wish to use them to go from one golfer's stroke to the next. When tournaments are held large crowds walk along one side of the golf course fairways of the course to observe the various strokes taken by the golfers who are participants in the tournament. To provide walkways for the tournament observers, and for the golfers who use carts many courses have walkways for the carts and for the guests and observers watching the tournaments. These walkways are generally formed of asphalt, which is easy for golfers who have spiked shoes to walk on. To present a neat, well kept appearance it is necessary to keep the grass trimmed to the edges of these walkways. This is a time consuming and laborious job that must be done by experienced and skilled workers.Type: GrantFiled: February 25, 1991Date of Patent: January 21, 1992Inventor: Walter Grube
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Patent number: 5065567Abstract: An improved lawn edger encludes an edging disk mounted for straight line adjustment, on the wheel axle of a lawn mower, between stowed and operative positions. One-handed operation moves the edger between these positions and, additionally, totally removes the edger for close-in mowing. The operating handle extends above the mower deck for ease of operation, while the apparatus minimizes undue tortional forces on the wheel axle.Type: GrantFiled: October 10, 1990Date of Patent: November 19, 1991Inventors: Lloyd F. Wessel, Edward O. Wessel, MaryAnn Mudd
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Patent number: 5052170Abstract: A shredder attachment for a round bale hay baler which will effectively shred corn stalks or stubble, milo stubble and the like and discharge the shredded stubble into a round bale hay baler which will form a bale of stubble which has been shredded which can be used for feed, bedding and the like. The shredding attachment can be easily and quickly attached to a round bale hay baler at the front lower area thereof and is drivingly connected to the power system of the hay baler and includes a rotatable shaft having a plurality of pivotal flail elements or knives mounted thereon for shredding stubble or stalks and discharging the shredded material rearwardly and upwardly into the hay baler in the same manner that hay enters the hay baler with the shredded stubble being rolled into a hay bale in the same manner that hay is baled by the round bale hay baler.Type: GrantFiled: June 14, 1990Date of Patent: October 1, 1991Inventors: Michael J. Trenkamp, Loras F. Gravel
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Patent number: 5036655Abstract: A lawn or turf aerating, dethatching, and grooming apparatus which derives the power needed to perform these functions from a movement of the apparatus against the lawn or turf surface that is desired to be affected by the apparatus. The apparatus is adaptable to a wide variety of lawn maintenance devices and particularly as a replacement front roller for a reel-type lawn mower.Type: GrantFiled: April 30, 1990Date of Patent: August 6, 1991Inventor: E. Ray Holloway
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Patent number: 4984417Abstract: The present invention relates to an edger with a belt braking device, including a belt driving device and a cutter blade, which are arranged at the side of an edger vehicle. A bearing housing portion of the cutter blade is provided for forward and rearward movement, a belt cover for covering the whole driving belt is fixed to the edger vehicle, and a belt braking device is arranged between the front end of the belt cover and the front driven pulley, whereby performing ON-OFF operation of a clutch and engagement/ disengagement of a brake simultaneously is enabled. In this way, the fixed belt cover can be compact and the operation for changing of working conditions can be simplified.Type: GrantFiled: September 8, 1989Date of Patent: January 15, 1991Assignee: Deere & CompanyInventors: Stephen A. Braun, Michael J. O'Neill, Roger W. Curry, James R. Titze, Donald E. Niosi, Tetsuzo Fujikawa, Makizo Hirata, Michio Nishimura
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Patent number: 4965990Abstract: A lawn mower and edger assembly includes a first pulley mounted to the drive shaft of the associated lawn mower to operate a series of forwardly mounted pulleys to rotatably drive an edger blade mounted laterally and forwardly relative to an associated lawn mower deck mounting the lawn mower engine. An over-center lever assembly is provided for forwardly pivoting and engaging the edging blade relative to the lawn mower drive pulley.Type: GrantFiled: September 11, 1989Date of Patent: October 30, 1990Inventors: Earnest E. Slawson, Sr., Ara M. Slawson
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Patent number: 4962631Abstract: The present invention provides an edger wherein a cutter device is arranged on one side of an edger frame, the position of a front wheel is adjustable, the position of one of the rear wheels situated on the other side of the edger frame is also adjustable, and a mechanism for changing the position of the front wheel as well as changing the position of the rear wheel is performed by a single control lever at the operator's station. With this arrangement, the adjustment of the depth of the cutter and the adjustment for maintaining the edger in a horizontal condition when the edger is driven on a curbstone can be easily effected by the operator.Type: GrantFiled: September 7, 1989Date of Patent: October 16, 1990Assignee: Deere & CompanyInventors: Stephen A. Braun, Michael J. O'Neill, Roger W. Curry, James R. Titze, Donald E. Niosi, Tetsuzo Fujikawa, Makizo Hirata, Michio Nishimura
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Patent number: 4949536Abstract: A lawn and garden trimmer apparatus includes a framework with means for mounting the framework to a lawn mower body, a guide rail supported between opposed sides of the framework, a carrier bracket moveably mounted on the rail, a support arm pivotally mounted to the bracket, and a trimmer assembly mounted to the outer end of the support arm. Through a combination of rotational and linear degress of freedom, the trimmer assembly may be located at various positions and angular attitudes relative to the lawn mower body.Type: GrantFiled: July 6, 1989Date of Patent: August 21, 1990Inventor: George Neufeld
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Patent number: 4907404Abstract: A cutting arrangement for grass is releaseably mountable or attachable to a vehicle. For cutting the grass, a rotatable wheel is used. The wheel extends outwardly from one side of the housing and has a cutting disc. The position of the wheel is adjustable.Type: GrantFiled: August 25, 1988Date of Patent: March 13, 1990Inventors: George R. Oliver, Stephen G. Oliver
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Patent number: 4841717Abstract: An improved cutting unit specially suited for grooming turf includes a frame supporting a conventional horizontally mounted driven reel having a number of spirally arranged blades. The cutting unit is supported on the ground by front and rear rollers. The front roller is a slotted expunger roller having numerous annular slots along its axis. Immediately behind the expunger roller is mounted a knife roller which includes numerous vertically oriented knife blades aligned with the circular slots of the expunger roller. As the expunger roller rolls along turf, horizontally lying plant material is pulled or puckered up by the expunger roller into the circular slots. The knife roller, driven at a high rate of speed about its own axis, pulls up and slices through the pulled up plant material.Type: GrantFiled: May 26, 1987Date of Patent: June 27, 1989Inventor: Lawrence L. Lloyd
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Patent number: 4756148Abstract: A flexible nonmetallic line trimmer for cutting vegetation has a wheel support for edging operations. The trimmer has a safety guard that extends around the rearward portion of a motor housing. A sliding bracket is mounted to the safety guard. A wheel is mounted on the forward end of the sliding bracket. The bracket will slide between a retracted position with the wheel to one side of the housing to an extended position with the wheel in front of the housing to support the cutter.Type: GrantFiled: August 1, 1986Date of Patent: July 12, 1988Assignee: Nylon Line Cutters (Pty.) Ltd.Inventors: John F. Gander, Otto D. Dunnebacke, Michael A. Helmig
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Patent number: 4724662Abstract: A lawn thatcher assembly including a shaft and a plurality of blades and spacers extending therealong. The shaft has a helical surface thereon, and the blades have a matching helical opening, all of which permits the blades to be slid onto the shaft and present a final helical pattern of blade tips along the length of the shaft. The method of making the assembly is also achieved in this invention.Type: GrantFiled: July 21, 1986Date of Patent: February 16, 1988Assignee: Textron Inc.Inventors: Frank J. Giandenoto, Marvin L. Joray
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Patent number: 4718221Abstract: A rotary lawnmower has an edger/trimmer including a freely rotatable disk disposed with a vacuum zone of the mower when in an edging position. In a retracted position, the edger is withdrawn fully inboard of the outer periphery of the mover housing such that no projections are left to interfere with close-in mowing. Guards are provided for the edging disk when in a stowed position, and in an edging position. An alternate embodiment provides for lifting the edger over obstruction when the edger is used on a riding mower. A trim position for trimming around foundations and the like is provided, together with methods of edging.Type: GrantFiled: May 21, 1986Date of Patent: January 12, 1988Inventors: Lloyd E. Wessel, Edward O. Wessel
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Patent number: 4715169Abstract: An edging attachment for motor mower comprising a plate that is bolted to the mower housing, the plate supporting a drive shaft carrying an idler pulley and a drive pulley, a drive belt interconnecting a pulley on the motor of a mower to either the idler pulley, means to selectively engage either the idler or drive pulley and an edging means operating in a plane substantially perpendicular to the cutting plane of the mower. The edging means is supported by the plate via a boom and is driven by the drive shaft via a flexible spindle drive. The boom allows adjustment of the cutting angle of edging means. The position of the drive shaft and pulleys is also adjustable relative to the motor of the mower.Type: GrantFiled: May 5, 1986Date of Patent: December 29, 1987Inventor: Maxwell K. Ould
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Patent number: 4691784Abstract: A lawn edger attachment for a tractor including a boom universally pivoted at its inner end to the tractor for both horizontal and vertical movement of its outer end, and normally angling acutely outwardly from the tractor, a circular cutting blade mounted beneath the outer end of the boom for rotation both about its own horizontal axis and about a vertical axis relative to the boom, a manually operable mechanism for pivoting the boom to position the blade above and in the plane of the division line between grassy and paved ground areas, and to lower it into ground engagement at the division line, the mechanism having a novel arrangement reducing the apparent weight of the boom and blade to the tractor operator, and a manual operating mechanism for pressing the blade into penetrating relation to the ground, the mechanism providing a great mechanical advantage in multiplying the manual force applicable by the operator of the tractor.Type: GrantFiled: September 2, 1986Date of Patent: September 8, 1987Assignee: Excel Industries, Inc.Inventors: David L. Mullet, Ivan W. Bontrager
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Patent number: 4685280Abstract: An inproved cutting unit specially suited for grooming turf includes a frame supporting a conventional horizontally mounted driven reel having a number of spirally arranged blades. The cutting unit is supported on the ground by front and rear rollers. The front roller is a slotted expunger roller having numerous annular slots along its axis. Immediately behind the expunger roller is mounted a knife roller which includes numerous vertically oriented knife blades aligned with the circular slots of the expunger roller. As the expunger roller rolls along turf, horizontally lying plant material is pulled or puckered up by the expunger roller into the circular slots. The knife roller, driven at a high rate of speed about its own axis, pulls up and slices through the pulled up plant material.Type: GrantFiled: December 18, 1984Date of Patent: August 11, 1987Inventors: Lawrence L. Lloyd, Barbara Lloyd, executor
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Patent number: 4653590Abstract: An edger for cutting a furrow between a sidewalk edge and adjacent soil includes first and second blades fixedly mounted on a horizontally extending motor driven shaft. The first blade includes a pair of elongated soil cutting arms extending oppositely from a central portion fixedly mounted on the shaft. The second blade includes a central portion fixedly mounted on the shaft and a pair of elongated arms crossed with respect to the arms of the first blade. Each of the arms of the second blade includes an outer planar portion and an intermediate inclined portion on which the outer portion is mounted so that the outer portion is in a plane substantially parallel to and removed from a plane containing the segment of the center portion which intersects the and is at right angles to the shaft axis. Each outer planar portion has a longitudinal edge including a beveled longitudinal soil cutting surface, which in combination with soil cutting surfaces of the first blade forms the furrow.Type: GrantFiled: October 30, 1984Date of Patent: March 31, 1987Inventor: James Shank
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Patent number: 4629006Abstract: A lawn edger attachment for tractors consisting of a base member adapted to be mounted at the side of a tractor, a boom universally pivoted to the base and angling laterally outwardly from the base, and a generally vertical rolling circular blade mounted beneath the outer end of the boom for rotation both on its own axis and about a generally vertical axis. A single manual operating handle operates to pivot the boom horizontally to position the blade directly above a division line between the grass of a lawn and an adjacent paved area, as the tractor is driven in a direction parallel to the division line, and to pivot the boom vertically, as may be necessary to rest the blade on the ground surface at the division line, and a foot pedal then supplies a mechanically multiplied force to press the blade downwardly to penetrate the ground.Type: GrantFiled: September 5, 1985Date of Patent: December 16, 1986Assignee: Excel Industries, Inc.Inventors: David L. Mullet, Elmer D. Voth
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Patent number: 4551967Abstract: A combination rotary mower and edger having a control lever on the handle, a flexible cable connected to the lever, and edger operating parts connected to the cable including a pivotal arm for raising and lowering the edger blade, an idler pulley for belt tightening to provide power to the edger blade, and a belt brake that is released to permit powering of the edger blade.Type: GrantFiled: March 4, 1985Date of Patent: November 12, 1985Inventor: Joseph S. Murcko
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Patent number: 4528805Abstract: A lawnmower attachment comprises a bearing assembly pivotally mounted on a lawnmower housing, and having a shaft driven from a power take-off of the lawnmower. The shaft can have an edge-cutting blade attached thereto, or the edge-cutting blade can be removed and replaced by a grinding wheel, so that the attachment can be used to sharpen the lawnmower blades or other blades. Pivotal movement of the bearing assembly connects or disconnects the shaft with the power take-off, and such movement is controlled by a hand lever on the lawnmower handle. The hand lever has a latch for releasably retaining the attachment in inoperative position.Type: GrantFiled: June 1, 1984Date of Patent: July 16, 1985Inventor: Joseph Zitta
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Patent number: 4520619Abstract: A lawn mower having a housing and a cutter unit positioned below the housing. The cutter unit comprises an upper rotating cutting unit and a lower stationary cutting unit that is concentric with the upper cutting unit and which have a plurality of upper and lower blades at their borders. Each blade has a cutting surface with a near end close to the border, and a far end away from the border. The blades of the upper cutting unit extend in front of a line passing through the concentric axis and the near end, in the direction of rotation of the upper cutting unit. The upper blades rotate and slide over stationary lower blades, thereby cutting the lawn in a manner similar to a pair of scissors. The angle between the upper and lower blades is preferably 16-20 degrees.Type: GrantFiled: December 29, 1982Date of Patent: June 4, 1985Assignee: Fuso Keigokin Co., Ltd.Inventors: Hachiro Doi, Masayuki Yaegashi