Vertical Axis Patents (Class 56/169)
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Patent number: 4532725Abstract: A rideable work apparatus having attachments that include a snow plow, a lawn mower and a roto-tiller simultaneously mounted to a frame. Cranks are provided for selectively actuating each of the attachments. A seat for the operator is connected to the cranks by a threaded rod so that when an attachment is actuated by the crank, the crank turns the threaded rod and causes the seat to displace towards the chosen attachment which shifts the center of gravity and achieves better contact between the chosen attachments and the working surface.Type: GrantFiled: July 19, 1984Date of Patent: August 6, 1985Inventors: Jesse Trejo, George Spector
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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
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Patent number: 4506464Abstract: A prime mover (A) has an arm assembly (B) pivotally connected thereto. A cutting assembly (C) is operatively connected with the arm assembly to be positioned thereby. The arm assembly is connected to the tractor to pivot about both vertical and horizontal axes such that the cutting means is positionable fore-and-aft as well as up and down. A hydraulic control circuit (D) controls the position of the arm assembly. The control circuit includes a first through-rod-type hydraulic cylinder (60) which includes a piston (62) slidably disposed therein to divide the cylinder into two equidiameter chambers (64, 66). A through-rod (68) is connected with the piston and extends through both chambers of the cyylinder. The hydraulic cylinder and the piston rod each have the same diameter in both chambers such that as the piston moves, one of the chambers draws the same amount of fluid as the other chamber discharges.Type: GrantFiled: February 6, 1984Date of Patent: March 26, 1985Inventor: Jack O. Cartner
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Patent number: 4481757Abstract: An improved powered lawn mower of the type comprising a longitudinally extending engine bed support frame, a transversely extending cutting reel and bed knife assembly carried by the frame, a transversely extending front roller carried by the frame and longitudinally spaced in front of the cutting reel, and a transversely extending lawn conditioning roller carried by the frame and spaced between the front roller and the cutting wheel. The improvements comprise a conditioning roller vertical adjustment means carried by the frame and operable to adjust the vertical height of the conditioning roller with respect to the grass and the pitch of the bed knife together with conditioning roller drive mechanism which is enclosed and pivotable upon vertical movement of the conditioning roller.Type: GrantFiled: November 16, 1983Date of Patent: November 13, 1984Assignee: Bunton CompanyInventor: Katsumi Tsuchiya
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Patent number: 4478028Abstract: An apparatus for edging and mowing lawns. A rotary lawn edger is demountably attached to a rotary lawn mower for being driven by the motor of the mower through a power take-off, a positive first speed increaser drive and a slippable second speed increaser drive.Type: GrantFiled: February 2, 1984Date of Patent: October 23, 1984Inventor: Gerthen L. Dawson, Jr.
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Patent number: 4466235Abstract: A rotary mower wherein tall vegetation is cut by selectively exposing a front opening in the housing of the mower, which in turn exposes a portion of a rotating cutting blade.Type: GrantFiled: January 10, 1983Date of Patent: August 21, 1984Inventor: Denver C. Cole
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Patent number: 4455813Abstract: A walk-behind type work vehicle has two running wheels on an axle, an upright power-take-off shaft for driving a selectably attachable implement, as well as an engine with an upright output shaft forwardly upwardly of the running wheels. Transmission system is adapted to transmit the power from the engine output shaft as parallelly divergingly branches off to the running wheels and to the power-take-off shaft.Type: GrantFiled: April 7, 1982Date of Patent: June 26, 1984Assignee: Kubota, Ltd.Inventor: Takashi Hira
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Patent number: 4453372Abstract: A universal grass edger and trimmer attachment is disclosed utilizing a rotary flexible drive shaft whose operating end is supported by a multipositional boom.Type: GrantFiled: February 28, 1983Date of Patent: June 12, 1984Inventor: Fred J. Remer
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Patent number: 4450673Abstract: A rotary mower has an engine supported by an engine platform secured to a frame having wheels and a handle, the engine has an output drive shaft which has a cutting blade rigidly secured at its end, a counter-rotating housing overlies the blade and is rotated in a direction opposite to the blade by a transmission means, the transmission means has a drive pulley rigidly secured to the output drive shaft, a pair of idler pulleys rotationally supported by the engine platform, a driven pulley rotationally supported by the drive shaft, and an endless belt trained from the drive pulley through the idler pulleys to the driven pulley, the counter-rotating housing is rigidly affixed to the driven pulley.Type: GrantFiled: October 13, 1981Date of Patent: May 29, 1984Inventor: Marion E. Hutchison
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Patent number: 4446679Abstract: A multipurpose, wheeled implement having a frame mounted platform configured to secure a lawnmower in proper disposition for utilizing the power from the lawnmower engine for driving rotary working tools carried by the implement frame. A projection of the implement frame is configured to receive thereover in telescoped relationship a socket shaped mounting structure for the rotary tool to facilitate quick interchangeability of the tools. One form of the tool disclosed is a rotary tiller and another embodiment is a snow blower.Type: GrantFiled: August 2, 1982Date of Patent: May 8, 1984Inventor: Perry W. Thomas
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Patent number: 4442661Abstract: A rotary lawn mower pump including a rotary blade lawn mower with an upper housing having wheels connected thereto, an above housing motor with a drive shaft through the housing having a rotary blade connection portion beneath the housing, an impeller pump and a pump support fixedly connected to the impeller pump and adjustably connected to the housing. The impeller pump includes an impeller connected to the rotary blade connection portion of the drive shaft for rotation, a pump cover including a lower intake opening and a peripheral discharge positionable to discharge water out through the side of the housing of the lawn mower.Type: GrantFiled: August 30, 1982Date of Patent: April 17, 1984Inventor: Clifford H. Stuart
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Patent number: 4411125Abstract: An apparatus for lawn maintenance incorporates the usual features of a lawn mower plus means which achieve the mulching and collection of lawn debris. The apparatus is provided with a wheel-equipped housing having an apertured upper deck upon which an engine is centered. Conduits extend from the apertures to a collector box positioned above the engine. The cutting blade has upturned extremities positioned to pass beneath the apertures. During rotary motion of the blade, air and debris are propelled upward through the apertures and conduits into the collector box. The debris is mulched by counter-rotating intermeshed blades positioned within the collector box, and blown into a porous collector bag carried by a handle attached to said housing.Type: GrantFiled: May 17, 1982Date of Patent: October 25, 1983Inventor: Hubert E. Strickland
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Patent number: 4403433Abstract: A snow blower auxiliary for a rotary lawn mower easily attachable to the deck of the lawn mower, and which is powered by a drive belt connected to the mower's power shaft which normally would power the mower's cutter blade. The drive belt powers a vertical power shaft of the snow blower auxiliary; and that vertical power shaft passes through a relatively stationary body member through which also passes a horizontal drive shaft which powers the snow blower, and which provides a pressure means by which a spring means is able to swing the vertical power shaft in a manner to exert and maintain the desirable tension in the power belt. The auxiliary thus provides a conversion unit for achieving snow blower operativity of the lawn mower; and it provides advantages of low cost, lack of need of an auxiliary engine means, convenience of storage, off-season usage of the lawn mower's power means, etc.Type: GrantFiled: December 24, 1981Date of Patent: September 13, 1983Assignee: Richard L. RaylInventor: Delmar A. Smith
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Patent number: 4389836Abstract: A wheeled platform is provided with a centrally located aperture for receiving and supporting the lower portion of a housing for a grass trimming device so that the cutting element of the device will extend beneath the platform and the motor housing will extend above the platform; coupling members are provided on the platform around the aperture and on the trimming device or on a flange member which is attachably connected to the grass trimming device such that the coupling members on the platform portion are offset at a predetermined angular distance from those on, for example, the flange member; the coupling members can be interengaged by orienting the trimming device or the flange member equal to the offset predetermined angular distance and rotated to align with the central longitudinal axis of the platform.Type: GrantFiled: July 8, 1981Date of Patent: June 28, 1983Inventors: Joseph M. Lowry, Ernest E. Griffin
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Patent number: 4379385Abstract: A compaction apparatus for use with lawn grooming equipment such as a lawn mower, leaf blower and the like, including a compactor housing having an inlet opening at one end to receive the refuse material picked up from the lawn and a screw conveyor rotatably mounted within the housing to transport and compact the received material as it is advanced through the conveyor housing. Perforations in the housing provide outlets for evacuating from the housing, air and moisture separated from the compressed material as it is initially compacted in the housing. A flexible tubular collector casing or hose is extensibly connected to the outlet end of the compactor housing, into which the initially compacted material is continuously advanced.Type: GrantFiled: May 20, 1981Date of Patent: April 12, 1983Inventor: Ulf Reinhall
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Patent number: 4343139Abstract: A wheeled platform is provided with a centrally located aperture for receiving and supporting the lower portion of a housing for a grass trimming device so that the cutting element of the device will extend beneath the platform and the motor housing will extend above the platform; pivoted arms are mounted on the platform to extend along or across the aperture to engage and hold the housing in position in the aperture on the platform; locking devices are provided on the top of the platform to grasp the ends of the arms to hold them in a closed position; a telescoping handle is pivotally mounted on one end of the platform on the top side thereof.Type: GrantFiled: April 8, 1981Date of Patent: August 10, 1982Inventors: Joseph M. Lowry, Ernest E. Griffin
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Patent number: 4308676Abstract: A lawn mower power take-off located above the lawn mower deck of the housing and adapted to be used to power lawn implements or accessories including a snow blower having a unique air assist mechansim.Type: GrantFiled: July 16, 1980Date of Patent: January 5, 1982Inventor: Maurice S. Doane
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Patent number: 4287709Abstract: A wheeled platform is provided with a centrally located aperture for receiving and supporting the lower portion of a housing for a grass trimming device so that the cutting element of the device will extend beneath the platform and the motor housing will extend above the platform; pivoted arms are mounted on the platform to extend along or across the aperture to engage and hold the housing in position in the aperture on the platform; locking devices are provided on the top of the platform to grasp the ends of the arms to hold them in a closed position; a telescoping handle is pivotally mounted on one end of the platform on the top side thereof.Type: GrantFiled: February 6, 1980Date of Patent: September 8, 1981Inventors: Joseph M. Lowry, Ernest E. Griffin
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Patent number: 4277935Abstract: An accessory for a rotary lawnmower for the trimming of lawn edges and comprising a channelled elongated frame provided with clips near opposite ends for attaching the frame beneath the baseplate of the lawnmower, a drive pulley on the frame having spaced upright posts engageable by a collar secured to the lower end of the lawnmower drive shaft for rotation of said pulley, a housing supported upright from one end of said frame and containing a transfer pulley, a belt drive between said pulleys, a trimmer blade belt driven from the transfer pulley to rotate in a vertical plane, and a canopy for said blade connected to said housing and free to pivot on two axes to provide adjustment of height of cut and angle of cut of said trimmer blade.Type: GrantFiled: May 6, 1980Date of Patent: July 14, 1981Assignee: June Shirley DegenInventor: John K. Degen
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Patent number: 4263771Abstract: A mulching mower and clean-up machine, adapted to cut and finely mulch grass, leaves and the like, is provided. A first blade member, supported on the underside of a movable housing, is adapted to cut grass and leaves on the ground and to discharge the cuttings through a discharge opening on the housing. A mulching chamber, mounted on the mower housing, includes an opening for receiving the discharged cuttings. A second blade member included in the mulching chamber, finely mulches the cuttings and discharges them through a further opening in the mulching chamber. A storage chamber is removably mounted on the mulching chamber for receiving the mulched cuttings.Type: GrantFiled: August 30, 1979Date of Patent: April 28, 1981Inventors: Albert Iaboni, Biagio Iaboni
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Patent number: 4242855Abstract: An edge trimmer mounted as auxiliary equipment on a rotary lawn mower. A flexible drive shaft has a first end connected to the top end of the lawn mower engine crankshaft. The opposite end of the flexible shaft is connected to a rotatable input driver of a trimmer. A rotatable cutting head on the trimmer is connectable to the flexible drive shaft by the rotatable input driver. The trimmer is mounted on the lawn mower and may be removed therefrom while connected to the engine crankshaft to facilitate trimming of grass at a location away from the lawn mower. A compressor and reservoir tank is mounted to the lawn mower and may be powered by the flexible drive shaft for spraying insecticide or other liquid.Type: GrantFiled: February 22, 1979Date of Patent: January 6, 1981Inventor: B. Max Beaver, Jr.
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Patent number: 4224784Abstract: This invention is a device for attachment with a line trimmer to convert it to an edge trimmer. The device has a collar with support legs attached to it and wheels attached to the support legs. A U-shaped brace is attached between the support legs holding them at an angle to each other. The collar is placed loosely around the handle of an existing line trimmer, the line trimmer is inverted in order to make its face perpendicular to the ground, the legs are inserted into the collar and the collar is then secured to the handle with the head of the line trimmer between the ends of the U-shaped brace.Type: GrantFiled: June 14, 1978Date of Patent: September 30, 1980Inventors: Lee A. Hansen, William A. Conrad
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Patent number: 4205510Abstract: An improved rotary lawn mower utilizing a novel cutting apparatus for increased safety. The cutting apparatus comprises a cutting wheel disposed within a blade cover, a protective housing releasably suspended by the blade cover beneath the cutting wheel, and a fan incorporated into the cutting wheel for drawing grass upwardly through slots in the protective housing and discharging the grass cuttings. The cutting wheel comprises a central hub for attachment to the drive shaft of the lawn mower engine, a plurality of radially-extending, horizontally-oriented rotary cutting blades, and a peripheral rim. A radial-flow fan is formed by the rim, and the cutting blades form an axial-flow fan, both of which produce an air flow which draws grass through the slots and discharges the cuttings through a discharge port of the blade cover.Type: GrantFiled: July 7, 1978Date of Patent: June 3, 1980Inventor: John J. Raniero
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Patent number: 4182100Abstract: A wheeled carrier for a lawn mower and edger which can be of the nylon line type. The mowing and edging tool is yieldably supported on a frame of the carrier to permit multi-directional operator controlled movement of the tool with respect to the carrier by manipulation of handle bars connected to a support for the cutter. The mounting permits steering a front wheel of the carrier by pressure applied to the handle bars. Rear wheels of the carrier are mounted to be fixed in different positions with respect to the front wheel, and parallel to each other to enable moving the carrier in different straight-line directions with respect to its longitudinal axis.Type: GrantFiled: May 1, 1978Date of Patent: January 8, 1980Inventor: Joseph D. Letter
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Patent number: 4170099Abstract: A grass edger and trimmer attachment for a power mower including a vertical trimmer shaft mounted in a bearing fixed to the side of the mower housing, the trimmer shaft being driven by a pulley which is belt-driven by the mower engine, and the trimmer shaft supporting a trimmer hub carrying flail members at a level below the skirt of the mower housing, and the attachment further including an arm hinged to the housing and carrying an edger shaft with a drive roller thereon and an edger hub at its outer end with flail members fixed to the periphery of the hub, the drive roller engaging the trimmer drive pulley and being driven thereby when the arm and the edger shaft are substantially horizontal, but the arm being tiltable about the hinge to an elevated position wherein the roller is disengaged and the edger hub and flail members are raised out of operative position.Type: GrantFiled: April 6, 1978Date of Patent: October 9, 1979Inventor: Boyd L. Owens
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Patent number: 4112656Abstract: A power driven circular saw blade for cutting brush is extensible with scythe tips mountable diametrically thereon for cutting grass. The saw blade is horizontally mounted in a recess defined between forwardly extending sides of a wheeled cart, the sides acting as brush guides and stabilizing against a directional pull generated by the rotation of the saw blade in heavy brush, as well as providing a safety factor in shielding the operator and others from the rotating saw blade and scythe tips, and matter flung thereby.Type: GrantFiled: January 19, 1977Date of Patent: September 12, 1978Inventors: Jerry Ranko, Frederick E. Ranko
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Patent number: 4057952Abstract: A rotary lawn mower includes apparatus for chopping and shredding materials such as cuttings, etc. into a mulch and collecting the mulch in a storage facility attached to the mower's housing. The device includes three blades affixed to the same vertically oriented drive shaft, vertically spaced from one another and rotationally staggered. An uppermost blade chops articles as they are fed into the mower's housing from a hopper thereabove, and the blade below shreds the chopped articles by engaging them against pairs of opposed shredder bars between which the shredder blade passes. Following this, the shredded material is passed out of a side opening in the housing into the collecting container by the centrifugal action of the chopping and shredding blades and by a fan effect of a mower blade, which is lowermost on the drive shaft. A bottom plate may be secured over the opening at the bottom of the apparatus when it is to be used for chopping and shredding.Type: GrantFiled: January 19, 1976Date of Patent: November 15, 1977Inventor: George K. Brokaw
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Patent number: 4023332Abstract: Power grass shears detachably attached to a handle: the handle includes a rod extending in the cutting plane; a connection between the shears and the rod to enable the shears to be rotated around the rod; the connection comprises various arrangements of a pin, and detent like means for enabling the shears to be held at various rotative positions.Type: GrantFiled: August 8, 1975Date of Patent: May 17, 1977Assignee: Wolf-Gerate GmbHInventors: Dieter Achenbach, Siegfried Joswig, Walter Kolb
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Patent number: 3979827Abstract: A tree cutting attachment for connection to a power mower or the like, and including an adapter means for mounting on the frame of the mower, and a cutting assembly including an elongated support arm connected to the adapter means and projecting outwardly from the side of the mower frame for engagement with a tree or the like. A continuous cutting element is movably mounted on a support arm for cutting engagement with the tree, and a drive assembly is operably connected to the cutting element being adapted for connection to the drive shaft of the power mower to impart movement to the cutting element for cutting through the tree.Type: GrantFiled: February 28, 1975Date of Patent: September 14, 1976Inventor: Ivan Anzur
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Patent number: 3977078Abstract: A chain saw drive having a unitary quick-attach, quick-detach grasscutting adapter including a cutter head driven by a flexible cable coupled with the output of the chain saw drive by a complementary fitting and supported inside a tubular member clamped to the chainsaw frame and extending in a downward arc toward the ground; bearings and spacers sequentially assembled into the tubular member-journal the flexible cable; the upper end of the tubular member has an integral clamp detachably affixed to the chain saw frame at attachment points customarily supplied with portable chain saw frames; a relatively long handle extending rearwardly of the frame on one end and a loop handle integral with the chainsaw drive on the other end provide manual grips for the assembly, which preferably is supplied with a filament-type cutter head for safety but which can be used with other cutting heads; a support at the cutter head is also disclosed.Type: GrantFiled: June 17, 1975Date of Patent: August 31, 1976Inventor: Charles B. Pittinger, Jr.
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Patent number: 3946543Abstract: A method and apparatus for positioning and cutting grasses. In one embodiment, a power mower is provided with a rotating rake structure positioned forwardly of the cutter to prevent foreign objects from being admitted to the region of operation of the cutter. The rake structure also serves to lift, straighten and align grasses for shearing. In accordance with the preferred embodiment, a power mower is provided with forward and rearward rake structures to pick up grass blades, pull out matted weeds such as crabgrass, position the upstanding grass blades in a reciprocating cutter, and sweep grass clippings away from the cutter and into a grass catcher. A hydraulic drive system varys the drive speed by controlling fluid flow rate to a hydraulic drive motor.Type: GrantFiled: December 21, 1972Date of Patent: March 30, 1976Inventor: William E. Templeton
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Patent number: 3945176Abstract: A power driven rotary lawn mower is disclosed in which an auxiliary power drive is provided for engageably coupling engine power to a tine-bearing shaft located between the front drive wheels. The tine-bearing shaft is supported between arms that can be raised and lowered from a linkage controllable at the handle. The combination permits thatching, grass cutting and mulching at the same time and may be used in combination with a rearwardly mounted seed-drill for immediately reseeding of a thatched lawn.Type: GrantFiled: September 16, 1974Date of Patent: March 23, 1976Inventors: Anthony P. Vicendese, Frank Vicendese
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Patent number: RE29139Abstract: A rotary lawn mower with various interchangeable parts can be utilized not only as a standard lawn mower but also a vegetation chopper or shredder, a leaf blower or a snow blower. A vacuum attachment is also provided to permit inaccessible areas to be maintained.Type: GrantFiled: February 2, 1976Date of Patent: February 22, 1977Inventor: Carlton E. Messner
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Patent number: RE31930Abstract: There is disclosed a technique for modifying a conventional rotary lawn mower to provide the capability of cleaning a paved area such as a sidewalk or driveway. Basically, the only modification to the lawn mower is the provision of a depending skirt extending downwardly from a peripheral wall of the lawn mower frame. Three embodiments are illustrated. The first embodiment comprises a skirt mounted on the lawn mower frame for adjusting movement between an upper or grass cutting position and a lower or sweeping position in which the lower edge of the skirt is spaced only slightly above the bottoms of the lawn mower wheels. The second embodiment comprises a skirt fixed to the lawn mower frame. Adjustment of the skirt to a lower sweeping position is accomplished by the provision of conventional adjustable wheels which effectively lower the lawn mower frame relative to the ground. The third embodiment comprises a skirt which is attached to the lawn mower only when it is desired to perform a sweeping function.Type: GrantFiled: July 13, 1983Date of Patent: July 2, 1985Inventor: Woodrow W. Luick