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7617664 |
Rotary cutting blade assembly
An improved rotary cutting blade assembly which is characterized by reduced friction and enhanced cutting efficiency is disclosed. The improved rotary cutting blade includes a rotary cutting blade...
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7543432 |
Retractable blade cutting apparatuses and methods for mowing machines
Apparatuses and methods are provided for preventing damage to a lawnmower engine and crankshaft when the lawnmower cutting blade encounters an obstructive object. A cutting device for a lawnmower...
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7543431 |
Mower blade locking joint
A mower blade locking joint for fastening and securing a rotary cutting blade to a vertically aligned spindle driven by an engine. The spindle extends below a mower deck. The blade has a pair of...
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7506494 |
Pivot-blade cutting and retaining means for rotary mowers
A cutting device configured to attach to a spindle of a mower. The cutting device includes at least two pivot-blades and a blade mounting assembly. The blade mounting assembly has an upper...
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7490459 |
Mowing device, a knife adapter for such a mowing device and a retainer for such a mowing device
A mowing device including a disc, the disc providing a mount for at least one knife, said knife being pivotably mounted to said disc by a pivot pin, said pivot pin defining a mounting axis, such...
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7487704 |
Saw blade with multiple interior secondary saw teeth
A saw includes a planar body having at least one cutting edge with serrated teeth. The planar body has cutout portions displaced from the outer cutting edges that include first and second sets of...
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7480998 |
Bush cutter
A cutter is coupled to a tip of a driven shaft rotatably attached in an operating arm as a main body of a bush cutter, and the other end thereof is provided to a driven side coupling portion...
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7451677 |
Saw blade with secondary teeth
A saw comprising a planar body includes at least one cutting edge with serrated teeth. The planar body has cutout portions displaced from the outer cutting edges which include sets of secondary...
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7416040 |
Travelling device particularly for self-propelled mower
Travelling device ( 20 ) particularly for self-propelled mower comprises a frame ( 1 ) provided with several identical travelling units ( 21 ) arranged on its circumference. Each travelling unit (...
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7392643 |
Mulching system for a lawn mower
A lawn mower having upper and lower cutter blades in a cutter housing is provided. The blades are disposed with a phase difference such that upper blade edge parts of the upper cutter blade are...
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7299612 |
Rotary mower blade
A rotary motor blade has rotational mounting structure in its body member to mount the blade to a power driven motor and thereby rotate the blade. The body member includes at least one free end...
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7290383 |
Trimmer blade
A trimmer blade assembly comprising a blade within a housing is provided. The housing includes a wall for propelling cut vegetation away from the blade assembly. The blade assembly may also include...
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7171798 |
Rotary shredding blade
A brush cutter blade for shredding of grasses, weeds, vines and brush and also for saw cutting of saplings and tree branches, comprising a circular saw blade member with auxiliary cutting elements...
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7155889 |
Modularized lawnmower replacement blade
A modularized lawnmower replacement blade which can be can be attached to a standard lawnmower shaft. The modularized blade includes a central mounting hub with four recessed seats. In the...
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7127877 |
Universal mower blade
A mower blade includes a mid-section, two sharpened, end sections, and a blade longitudinal axis. The mid-section includes a circular, central hole having a relatively large diameter and being...
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7124566 |
Cutting device, particularly a lawn mower
A cutting device, particularly a lawn mower, has at least one rotating knife mounted on a rotating, motor-driven knife carrier by a screwless, detachable connection. This connection is detachable...
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7024847 |
Mower deck
A mower deck includes a cutting chamber, at least one blade mounted cutting chamber and at least one deflector mounted in the cutting chamber. The at least one deflector is semi-permeable to...
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6971224 |
Retractable discharge chute for a lawn mower
A lawn mower that includes a cutting blade rotatable about a blade axis to produce clippings and a mower deck including a side opening positioned to allow for the discharge of the clippings. A...
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6951094 |
Mower with mulching function
A mower with a blade housing, in which a blade rotates about a vertical rotational axis in a rotational plane, so that for movement of the mower in the mowing direction, the cutting material is cut...
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6938402 |
Mowing blades having an impact energy absorbing structure
Mowing blades which include a one-piece member having a drive mechanism coupling section, a deformation section and a cutting section. When the mowing blades receive a particular load from an...
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6935095 |
Rotary lawnmower blade with reversible replaceable blades
Attachable to a rotary lawnmower shaft is a body assembly of a rectangular shape having a removable and reversible blade on each end. The blades are easily and quickly removed, reversed, and...
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6910324 |
Multi-bladed rotary cutting deck with mulching and discharge/collection modes
A rotary cutting deck has dual, side-by-side cutting chambers each of which houses a rotary cutting blade. The blades rotate so that grass clippings exit to the rear of the cutting deck through a...
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6848245 |
Lawn mower with improved blade and blade housing
A grass cutting blade is provided which can be rotated in either direction while providing cutting and airlift in either direction. This can be used in cooperation with a cutting deck housing which...
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6840030 |
Thatching attachment for a rotary power lawn mower
A thatching attachment for a rotary power lawn mower that uses short lengths of nylon trimmer cord as bristles to thatch lawns by mounting the brushes on a blade. The device uses alternatives to...
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6782682 |
Shield fixed over crop conveyor wheel of machine for mowing stalk-like crops
A machine for mowing stalk-type crops includes a crop conveyor wheel mounted for rotation about an approximately vertical axis and provided with recesses that are distributed over its circumference...
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6769236 |
Thin lawn mower blade
A lawn mower blade having a thickness of approximately 0.075 inches comprises a main body, an elevational profile, and end portions equidistant from the center of the blade. The elevational profile...
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6722114 |
Safe lawn mower blade alternative system
A lawn mower blade assembly comprises a bottom hub and a top hub, both provided with central apertures. Provided around the bottom and top hubs are a plurality of equally spaced holes. An...
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6698176 |
Multiple saw pruning apparatus
An inexpensive and readily available pruning blade for pruning crop growth, such as grape vines following harvest, has a disc-like base plate. The base plate has ordinary small diameter radial...
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6688095 |
Blade coupler assembly for use with a self-propelled, walk-behind rotary lawn mower
A blade coupler assembly operable to couple a cutting blade and a drive belt to a lawn mower engine crankshaft. The blade coupler assembly may include a blade/belt driver assembly having a tube...
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6655119 |
Cutter blade for lawn mower
A cutter blade for lawn mowers having an airlift curved from a cutting edge formed on a rotationally leading edge toward a rotationally trailing edge. The trailing edge of the airlift is shaped in...
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6640449 |
Cutting blade for a trimmer
The present invention relates to a cutting blade for a trimmer. The cutting blade ( 1 ) comprises a base body ( 14 ) having a central portion ( 15 ) as well as end portions ( 16 ) adjoining the...
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6594981 |
Mowing and mulching system for lawnmowers
A mowing and mulching system for lawnmowers having multi-blade knives coupled to a motor-driven driving shaft and rotating in a pot-like cover opening at the bottom side. The blades are attached to...
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6575839 |
Heavy duty quill assembly for a lawn mower
A quill assembly for transmitting power from a belt drive to a lawn mower blade has a jackshaft positioned within a central bore of a housing. A blade adapter is recessed into the bottom of the...
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6513311 |
Automatic configuration of dual cutter mode windrowers
The cutter head of a windrower may carry a sickle bar or a disc as the cutting element. Each type of cutting element requires a different drive power to obtain a given set point speed. To determine...
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6490850 |
Mower blade
A mower blade with a trailing sweeping edge that projects below the cutting edge serves to brush, cut particles deposited on the grass surface down between the grass blades and up into the air...
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6484486 |
Grass cutting machine with mower unit
A mower unit of grass cutting machine has at least two blades. The left blade is rotatable clockwise, while the right blade is rotatable counterclockwise. A grass discharge passage is formed...
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6470662 |
Multiple blade cutting apparatus for rotary lawn mower
A blade cutting apparatus for a rotary lawn mower. The blade cutting apparatus is defined by a plurality of blades projecting radially outward from a central hub. Each blade is defined by a first...
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6470661 |
Mowing blade with star
A shape for the central drive hole of a rotary mowing blade, such shape including two pairs of teeth extending off of a central hole substantially displaced 30° from the central axis of the mowing...
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6415591 |
Lawnmower blade with fan structure for creating enhanced air movement
A lawnmower blade for cutting grass with a scything action. The lawnmower blade includes elongated bar. The bar is adapted to engage a drive shaft of a lawnmower. The bar has a generally arcuate...
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6393811 |
Cutting element for a rotary cutting machine
A cutting element for a rotary cutting machine comprising several adjacent cutting members each of which is intended, during work, to rotate about an upwardly directed respective axis. The cutting...
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6389786 |
Belt drive system having a single drive motor for multi-bladed rotary cutting unit for mower
A riding mower having two side cutting units and a front cutting unit operatively connected to a traction frame. Each side cutting unit can pivot about a substantially vertical axis relative to the...
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6367235 |
Blade-mounting system for a rotary mower
A blade-mounting system for a rotary mower includes a platform operatively connected in driven relationship with a drive axle of the rotary mower. The platform includes a pair of raised edges...
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6360517 |
Mower unit
A mower unit (B) having a housing ( 13 ), blades ( 12 ) supported in the housing to be rotatable about vertical axes (P 1 ) acting as the centers of rotation, cutting edges ( 12 A) defined at front...
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6357215 |
Vegetation cutting tool and blade
A vegetation cutting tool such as a brush cutter, lawn mower, etc. includes a hub ( 110 ) for mounting on the rotary shaft of the brush cutter and blades ( 112 ) mounted thereto via pivoted links (...
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6321517 |
Leaf blowing blade for a lawn mower
A lawn mower assembly having a leaf blowing blade includes a blade assembly for converting a lawnmower into a leaf blower. The blade assembly includes a substantially planar disc member that...
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6318055 |
Vertical-axis mower and roller conditioner
Cutting apparatus (10) comprising a body assembly (11) including a lower wear disc (12) and an upper lifting and cutting assembly (13), mounted for driven rotation on a mower via driving hub (14)....
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6311463 |
Rotary mower cutter disc having self-cleaning knife mount shield
A rotary cutter disc includes shields for the nuts of the knife mounting bolts. Each shield includes a U-shaped well in which a respective one of the nuts is located, the well being oriented so...
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6301868 |
Vortex reducing mower blade
A vortex reducing mower blade for use with a rotary lawn mower having a motor and a depending drive shaft has a cutting edge on each leading edge thereof, an airlift on each trailing edge thereof,...
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6286293 |
Lawn mower cutting blade spindle assembly
A lawn mower cutting blade spindle assembly having an elongate spindle shaft and a spindle shoulder projecting radially outward from the lower end thereof. A bearing assembly mounted within a...
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6272820 |
Sugar cane harvester
A sugar cane harvester has a cutting mechanism which utilizes pairs of cutting disks and does not require synchronization of the cutting disks. Each of the cutting disks has a revolving cutter...
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