Including Cutter Yieldably Mounted On Its Drive Means Patents (Class 56/12.7)
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Patent number: 7222476Abstract: A hand-pushed mower of which blade height setter is provided with a sphere rolling on the ground, many small spheres holding the sphere as to freely roll, a semi-spherical receiving member forming a gap between an upper spherical face of the sphere to hold the many small spheres in the gap, and a scraping ring frame portion disposed to be parallel to and having a predetermined interval with a lower end edge of the semi-spherical receiving member. The scraping ring frame portion is disposed to be near the surface of the sphere as to scrape foreign matter on the surface of the sphere. A window portion for removing the foreign matter is formed between the lower end edge of the semi-spherical receiving member and the scraping ring frame portion.Type: GrantFiled: October 6, 2004Date of Patent: May 29, 2007Assignee: VIV Engineering Inc.Inventor: Tadashi Hishida
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Patent number: 7219431Abstract: An improved line trimmer (10) for weed or grass cutting is provided which includes a operating head (16) having a rotatable housing (44) with cutting line outlet openings (68). A replaceable line cartridge (18) having a supply (118) of line (107) is mounted exteriorly of housing (44), and the free ends (120) of the line pass from the cartridge (18), through housing (44), and out the opening (68). Preferably, the cartridge (18) is mounted on an upright tubular drive shaft (42) coupled with housing (44), so that the line (107) may be threaded through the drive shaft (42).Type: GrantFiled: October 4, 2005Date of Patent: May 22, 2007Inventor: Joseph M. Robison
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Patent number: 7219488Abstract: A mounting apparatus is provided that attaches a string trimmer to a lawn mower. The mounting apparatus comprises components that provide for mechanical absorption of impacts to a head of the string trimmer. In one embodiment, the mounting apparatus comprises a lower mounting shock assembly comprising two vertically positioned springs or other suspension/shock absorbing devices, an upper impact assembly, comprising an angled spring, or other suspension/shock absorbing device, through which a shaft of the string trimmer passes, and components that provide for rotation of the string trimmer head with a drive motor provided with a protective clutch mechanism. Embodiments include providing the mounting apparatus on a lawn mower with a string trimmer device inserted therethrough.Type: GrantFiled: September 19, 2005Date of Patent: May 22, 2007Inventor: Charles Hatfield
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Patent number: 7216471Abstract: Some embodiments of the invention provide a multipurpose gardening tool having an attachable circular carriage for converting an edge trimmer to a lawnmower for cutting and trimming grass and bushes. The circular carriage has an opening configured for receiving the edge trimmer. The multipurpose gardening tool also includes a coupler. The coupler allows a user to fixedly couple the edge trimmer to the carriage housing without use of any tools. The multipurpose gardening tool further includes wheels for maneuvering the lawnmower. A height adjuster couples these wheels to the carriage. The coupling allows the wheels to be manually and independently controlled for lifting the carriage off the surface of the ground and adjusting the height of the carriage.Type: GrantFiled: May 21, 2003Date of Patent: May 15, 2007Inventor: Rizwan Syed Hassan
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Patent number: 7174639Abstract: A vegetation cutting machine has a tubular operation rod, a motor mounted to an end of the operation rod, a drive shaft extending through the operation rod and driven by the motor, a cutting tool provided at a distal end of the operation rod to undergo rotation with the drive shaft, a handle mounted on the operation rod, and a pair of handgrips provided on distal ends of the handle. Each of a pair of fastener members traverses the handle and a respective one of the handgrips for fixedly mounting the respective handgrip to the handle at a point located substantially at a center of gravity of a sum of a mass of the respective handgrip and a mass of a portion of the handle extending between the fixing point and a respective one of the distal ends of the handle, such that the fastener members of the respective handgrips are located at positions of the handle at which vibrations transmitted to the handle from the motor through the operation rod are minimized.Type: GrantFiled: May 3, 2005Date of Patent: February 13, 2007Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Makoto Warashina, Hiroaki Uchitani, Hideshi Sasaki
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Patent number: 7165383Abstract: A trimmer attachment for mower deck having a servo connectable to a lawn mower deck. The servo is capable of angular actuation. A line trimmer is connected to the servo. The line trimmer has a bottom side. The line trimmer is capable of feeding line upon tapping the line trimmer bottom side upon a surface. A line feed switch is connected to the servo. The line feed switch is capable of actuating the servo downward and upward to tap the line trimmer bottom side upon a surface.Type: GrantFiled: June 24, 2003Date of Patent: January 23, 2007Inventor: James J. Luton, Jr.
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Patent number: 7165382Abstract: An attachment for a lawn maintenance vehicle includes a trimming apparatus. The attachment allows vertical and horizontal movement of the trimming apparatus such that lawn areas which are not accessible to the lawn maintenance vehicle's cutting apparatus can be trimmed easily.Type: GrantFiled: April 3, 2001Date of Patent: January 23, 2007Inventor: James D. Mitchell, Jr.
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Patent number: 7134208Abstract: A vegetation trimmer having a head, a handle and an intermediate portion interconnecting the head to the handle. The intermediate portion is configured to include a first portion, a second portion and a third portion that are each arranged about a respective axis. The first portion is coupled to the primary handle at a first end and to the second portion at a second end. The second portion is coupled to the third portion at an end of the second portion opposite its connection to the first portion and an opposite end of the third portion is coupled to the head. The axis of the second portion is skewed to the axes of the first and third portions.Type: GrantFiled: April 16, 2003Date of Patent: November 14, 2006Assignee: Black & Decker Inc.Inventors: Sean D. Wilkinson, David S. Strong, Ted A. Kimball, Phillip T. Cassidy, Richard P. Rosa, Weston J. Van Wambeke
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Patent number: 7131499Abstract: An improved line trimmer and edging unit for lawn and garden use provides a multi-position accessory handle, a roller edge guide having a flange concentrically located about the motor shaft and being of sufficient diameter to maintain a consistent distance between the cutting plane and the object being edged around, symmetrically disposed safety switches, and a battery located symmetrically in-line with the center of the shaft of the unit. The combination lawn trimmer and edger unit may be used in a first, horizontal cutting plane position for lawn and weed trimming, and may be further used in a second, vertical cutting plane position for edging.Type: GrantFiled: June 14, 2004Date of Patent: November 7, 2006Assignee: Original Power, Inc.Inventors: Matthew R. Breneman, John P. Leffler, James F. Hutfles
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Patent number: 7114316Abstract: A rolling lawn trimmer carriage incorporates a remote trimmer motor control. The carriage may include adjustable mounting bracket means for attaching a lawn trimmer in various positions on the carriage base. A means for parking the carriage in a stationary position is desirably provided to facilitate servicing of a trimmer attached to the carriage.Type: GrantFiled: March 11, 2002Date of Patent: October 3, 2006Assignee: William M. Wilkerson, Jr. TrustInventor: William Morgan Wilkerson, Jr.
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Patent number: 7111403Abstract: A head for a line trimming apparatus includes a body member and a detachable cover that may include a replaceable insert for connecting the head to a drive shaft of a line trimming apparatus. The body member includes opposed openings and a filament-receiving channel for inserting an elongated flexible cutting filament into the head for retention thereon. A spring-biased clamp is supported on the body member and is engageable with the filament portion residing in the channel to releasably retain the filament connected to the head. An actuator button projects through an opening in the body member and is operable to be pressed to cause the clamp to release forcible engagement with a filament so that the filament may be removed and replaced. In one embodiment the clamp and actuator are an integrally formed part and the filament projects through openings formed in spaced apart arms of the clamp member.Type: GrantFiled: April 30, 2002Date of Patent: September 26, 2006Inventor: Mark R. Moore
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Patent number: 7107745Abstract: A trimmer wheeled accessory for a gas or electric powered line trimmer used to support the distal end of the trimmer pole during operation. The accessory includes an extension arm that is longitudinally aligned with the trimmer's main pole and selectively attached thereto via a first clamp. The distal end of the extension arm extends from the trimmer head. Attached to the distal end of the extension arm is a wheel assembly that supports the trimmer head at a constant elevation when cutting grass or weeds. The extension arm is sufficient in length so that the wheel accessory is located in front of the trimmer head. The extension arm may be rotated around the trimmer's main pole so that the wheel assembly may be used to support the trimmer head in both a horizontal or vertical alignment.Type: GrantFiled: June 25, 2003Date of Patent: September 19, 2006Inventor: Michael D. Dunda
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Patent number: 7059106Abstract: An adjustable spindle assembly is described and includes a spindle housing, a grooved spindle shaft rotatably connected to the spindle housing, a pulley connected to one end of the grooved spindle shaft, a mow ball rotatably connected to a second end of the grooved spindle shaft, and a string carrier assembly adjustably connected in between the spindle housing and the mow ball. The string carrier assembly includes a pair of string guides and string holders for securing cutting string to the string carrier assembly without the use of tools. In addition, the string carrier assembly can be adjusted between the spindle housing and the mow ball without the use of tools. Alternative embodiments are also disclosed.Type: GrantFiled: September 18, 2003Date of Patent: June 13, 2006Inventor: Dennis Brandon
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Patent number: 7036297Abstract: A fully-adjustable lightweight trimmer attachment assembly (10) broadly comprises a wheel (14), a rod (16) extending from the wheel (14), and a mounting mechanism (18) for rotationally mounting the rod (16) to a trimmer (12). The rod (16) preferably includes an axle section (16a) through the wheel (14), a trailing section (16b) perpendicular to the axle section (16a), a centering section (16c) parallel to the axle section (16a), and a vertical section (16d) aligned at ninety degrees to the centering section (16c) and at sixty degrees to the trailing section (16b). With the vertical section (16d) vertical, the trailing section (16b) forces the wheel (14) to follow the vertical section (16d), providing a castering effect. The mounting mechanism (18) includes a rod mount (30) rotationally secured to the vertical section (16d) and a shaft mount (32) operable to be secured to the trimmer (12) and rotate about the rod mount (30).Type: GrantFiled: November 6, 2003Date of Patent: May 2, 2006Inventor: Lawrence Popp
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Patent number: 7017272Abstract: A weed and grass trimmer has a cutting line which is fed as the weed trimmer is in use. The weed trimmer's cutting head includes a spool for cutting line, and a housing. The spool has flanges around its circumference, which may engage a corresponding upper or lower set of flanges in the housing. Actuation of a control located near the handle operates either a cable or a solenoid, causing the spool to reciprocate between the upper and lower flanges. The difference in centrifugal force and angular velocity during this reciprocation causes additional cutting line to be fed.Type: GrantFiled: December 30, 2003Date of Patent: March 28, 2006Inventor: Albert S. Grace
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Patent number: 6996960Abstract: A grass trimming device with dual linehead spool hubs is provided. The grass trimming device is adapted to simultaneously trim grass at both a substantially horizontal plane and a substantially vertical plane. The device includes actuation switches which also allow linehead spool hubs to be used in an independent manner.Type: GrantFiled: November 15, 2004Date of Patent: February 14, 2006Inventor: William J. Flemm
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Patent number: 6988954Abstract: A weed cutting golf club includes a shaft terminating in a clubhead, the clubhead defining a compartment having a downwardly directed opening. A power source is carried by one of the clubhead and the shaft. A motor is carried within the compartment and coupled to the power source. A drive shaft extends in a downward direction from the motor through the opening and terminates in a hub. Cutting members extend from the hub.Type: GrantFiled: October 14, 2004Date of Patent: January 24, 2006Inventors: John Clark Buell, Troy Nicholas Nowell
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Patent number: 6986238Abstract: A mount assembly for mounting a conventional trimming device on a riding mover includes an adjustable support arm mounted on the mower deck carries a biaxially pivotal bracket carrying the shaft of the trimming device whereby the operator may selectively pivot the cutter of the trimmer about a wide arcuate path during movement to trim unwanted vegetation.Type: GrantFiled: November 18, 2004Date of Patent: January 17, 2006Inventor: Danny Bloodworth
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Patent number: 6973728Abstract: A filament trimmer includes a rotatable trimmer head having an outwardly extending filament. The trimmer has an upper handle that the operator can grip to operate the trimmer in either a trim mode or an edge mode. In the trim mode, the filament extending outwardly from the trimmer head is positioned in a generally horizontal cutting plane, while in the edge mode the trimmer is reoriented such that the filament is positioned in a generally vertical cutting plane. The upper handle of the trimmer includes dual triggers for selectively starting and stopping rotation of the trimmer head. One trigger is actuated when the trimmer is operated in the trim mode and the other trigger is actuated when the trimmer is operated in the edge mode.Type: GrantFiled: April 4, 2002Date of Patent: December 13, 2005Assignee: The Toro CompanyInventors: Bart T. Ellson, John O. Hurst, Chadwick A. Shaffer
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Patent number: 6971223Abstract: A wheeled vegetation trimmer with an adjustable height cutting element includes an adjuster member having a locking plate for positioning the adjuster assembly along a length of the shaft by selectively engaging the locking plate with a desired slot on a spindle and a partial ball-shaped and freely spinning ground contacting member.Type: GrantFiled: January 25, 2002Date of Patent: December 6, 2005Assignee: Electrolux Home Products, Inc.Inventors: Mike Scott, Doug Johnson, Deborah Faircloth, Ben Knight
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Patent number: 6966168Abstract: A support for mounting a grass or weed trimmer to a deck of a riding mower or tractor includes a bracket for releasably and rotatably receiving a post, a telescoping post, and a cradle for releasably receiving and nesting with a trimmer shaft supported by the post. The cradle is mounted to the post by a spring, allowing front to back pivoting of the trimmer during use. In another aspect, the invention provides a trimming system comprising a trimmer mounted to a mower deck by the support as described.Type: GrantFiled: June 10, 2003Date of Patent: November 22, 2005Inventor: John Patrick Kerr, Sr.
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Patent number: 6952877Abstract: A trimmer head wherein the driveline of the power tool is connected to a core member. A spool is mounted to the core member and directly driven by the core member. A housing is mounted for axially sliding on the core member and a spring urges axial movement of the housing relative to the core member. Interlocking structure on the spool and housing produces interlocking for common rotation of the spool and housing responsive to urging by the spring. Release of the interlocking structure is affected by opposing said spring urging. Desirable additional features include selective alternate positioning of the spring for automatic and manual only release of said interlocking and a line loading assist provided by a tubular post through the spool alignable with housing eyelets for threading line through the eyelets and spool and winding thereof onto the spool by manual turning of the spool relative to the housing.Type: GrantFiled: January 10, 2003Date of Patent: October 11, 2005Assignee: Shindaiwa, Inc.Inventor: James R. Pfaltzgraff
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Patent number: 6944954Abstract: A grass-cutting head (1) including: a housing (3); and at least one spool (5) placed in the housing and on which a cutting line (F) can be wound. The spool is accessible from the outside to enable a supply of cutting line to be wound onto it without taking said spool out of the housing. A stop is provided to hold the spool in the housing while the supply of cutting line is being wound onto the spool.Type: GrantFiled: July 6, 1999Date of Patent: September 20, 2005Assignee: Arnetoli Motor di Arnetoli FabrizioInventor: Fabrizio Arnetoli
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Patent number: 6944956Abstract: A trimmer head for string trimmer machines uses a fixed line segment inserted into a passageway in the trimmer head housing where the line is engaged by a trimmer line retaining tab secured in the main housing and extending into the passageway for engagement by a trimmer line segment inserted into an entry opening.Type: GrantFiled: June 5, 2003Date of Patent: September 20, 2005Inventor: John R. Fogle
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Patent number: 6941738Abstract: An active guard for use with a line trimmer includes a shield coupled to the trimmer's rotatable shaft casing, a brush member for moving weeds toward the trimmer's cutting line, and a device for transmitting power from the trimmer's rotatable shaft to the brush member for rotating the brush member. The device for transmitting power from the trimmer's rotatable shaft to the brush member includes a belt and pulley assembly or alternately a gear train and a flexible shaft. The top portion of the shield includes upper and lower walls for enclosing the power transmission device. The trimmer's rotatable shaft rotates, and the power transmission device transmits power from the trimmer's rotatable shaft to the brush member, causing the brush member to rotate. The rotating brush member contacts and moves weeds toward the trimmer's cutting line, thus preventing damage to trees and buildings while ensuring that an area is completely trimmed.Type: GrantFiled: September 16, 2004Date of Patent: September 13, 2005Inventor: Edward B. Standish
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Patent number: 6925789Abstract: A cutting apparatus for a lawn mower includes a base plate that has a side surface which is formed with two guiding blocks and an abutment post. The abutment post is disposed between the guiding blocks. A nylon line has two block-engaging line portions received respectively within slots in the guiding blocks, a curved post-engaging line portion abutting against an annular surface of the post, and two generally straight connecting line portions connecting the block-engaging line portions respectively to the post-engaging line portion. One of the block-engaging line portions forms an acute angle with an adjacent one of the connecting line portions so as to prevent the nylon line from being removed from the guiding blocks by the centrifugal force of the nylon line when the base plate rotates.Type: GrantFiled: January 6, 2004Date of Patent: August 9, 2005Assignee: Macauto Industrial Co., Ltd.Inventor: Paul Lin
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Patent number: 6922981Abstract: Power equipment widely used in commercial, residential and recreational settings comprises a host implement and a demountable motor. The host implement has a working piece dedicated to a single task. The host implement has a frame, a mounting block secured to the frame, a driven shaft connected to the frame with a working piece connected to one terminus and a self-locating and locking coupler on the other terminus. The demountable motor has a drive shaft with a second self-locating and locking coupler on its terminus. When the demountable motor is positioned on the host implement, the respective couplers mechanically mate so that a power from the demountable motor can be transferred to the working piece. The demountable motor is capable of being used on any one of several different host implements, all designed for performing different work tasks.Type: GrantFiled: November 17, 2003Date of Patent: August 2, 2005Assignee: Princetree, LLCInventor: Hillard Tyree
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Patent number: 6910277Abstract: A flexible noise attenuating cutting line for use in rotary vegetation trimmers formed by extruding a pair of molten monofilament strands in proximate disposition through a rotating die so as to form a line comprised of two monofilament polymer strands bonded together in a twisted disposition about a central longitudinal axis so as to define a pair of substantially V-shaped opposed troughs extending helically along and about the line.Type: GrantFiled: August 29, 2001Date of Patent: June 28, 2005Assignee: Proulx Manufacturing, Inc.Inventors: Richard A. Proulx, Rodger D. Thomason, William P. Conley
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Patent number: 6895735Abstract: A two wheeled carriage for converting a string trimmer to a wheeled appliance. The carriage has an axle, two nine inch or greater wheels, and a clamp for retaining the string trimmer's shaft. A swivel joint enables the clamp to adjust angular orientation of the appliance relative to the carriage. A latch locks the swivel joint in one of several angular orientations. The clamp includes an adjustable, flexible grasping element for engaging shafts of different dimensions and configurations. A lever operated over-center arrangement closes the grasping element over the appliance shaft. The clamp optionally includes saddles for securing that shaft in a fixed perpendicular and non-intersecting angular relationship to the axle. An adjuster varies deviation of that shaft from the horizontal. The adjustment mechanism may be located either between the axle and the swivel joint or alternatively between the swivel joint and the clamp.Type: GrantFiled: May 30, 2002Date of Patent: May 24, 2005Inventor: Bill Gallentine
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Patent number: 6892518Abstract: A trimmer assembly for a lawn mower is detachably mountable on a deck of the lawn mower by a housing or shroud that can be secured to the front edge of the deck A mounting frame is pivotally attached to the housing. The mounting frame carries a trimmer head with a plurality of cutting elements secured thereto. The mounting frame and the trimmer head pivotally move between an operational and a non-operational position by a swivel arm secured to the mounting frame. A proximate end of the swivel arm engages a handle, which is secured to the housing. The handle has a limited rotation for pivotally moving the mounting frame. A stop plate mounted below the handle limits the pivotal movement of the handle in relation to the housing. The trimmer head may by powered by a belt connected to a drive pulley of the lawn mower, by an electric motor, a hydraulic motor or other suitable power source.Type: GrantFiled: November 14, 2003Date of Patent: May 17, 2005Inventor: Michael Bares
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Patent number: 6886258Abstract: A hand-held rotary trimmer comprises a removable multi-piece shroud for covering a drive shaft and rotary cutter of the trimmer. The shroud includes an opening for feeding vegetation to the rotary cutter and an expulsion duct extending in a direction generally tangential to a rotational direction of the rotary cutter. In the preferred embodiment, the shroud includes three pieces formed of molded plastic. A first piece of the shroud has a hood portion and a first half-collar portion integrally formed with the hood portion. A second piece of the shroud has a second half-collar portion removably attached to the first half-collar portion of the first piece for releasably clamping the shroud on the trimmer housing and a flange portion integrally formed with the second half-collar portion and arranged to be flush against the hood portion of the first piece.Type: GrantFiled: November 15, 2002Date of Patent: May 3, 2005Inventor: Richard C. Swanson
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Patent number: 6874306Abstract: A hand-pushed mower provided with a frame holding an engine, a wheel disposed under a lower end of the frame, a handle disposed on an upper end of the frame, and a mowing blade disposed in front of the wheel and rotated by the engine, wherein the wheel is formed into a barrel-shaped configuration.Type: GrantFiled: July 9, 2002Date of Patent: April 5, 2005Assignee: VIV Engineering Inc.Inventor: Tadashi Hishida
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Patent number: 6871484Abstract: A harvester of the type known as a string trimmer includes a wheel on which the harvester rests. The harvester is supported by the wheel during use.Type: GrantFiled: December 1, 2003Date of Patent: March 29, 2005Inventor: Jerry W. Sartain
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Patent number: 6862871Abstract: A carriage device for a string trimmer includes an axle frame supporting at least two wheels. A main frame includes an axle mounting section for adjustably securing the axle frame and a shaft receiving section shaped to receive the shaft of a string trimmer. The axle mounting section includes a plurality of connecting areas for selectively adjusting a height of the axle frame. Additionally, the axle frame is preferably laterally adjustable relative to the main frame. Alternative arrangements of the main frame enable the axle frame to be rotationally adjusted relative to the string trimmer. Additionally, the carriage device is particularly suited for a mulcher system and can be readily adapted to support a sizable DC battery for cordless operation of an electric string trimmer. The device enables multi-functioning of a string trimmer including mowing, edging, blowing, mulching, etc.Type: GrantFiled: May 1, 2002Date of Patent: March 8, 2005Inventors: Vincent D. Morabit, Christopher James Morabito
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Patent number: 6860019Abstract: A tool head of a trimmer is provided, and has a gear mechanism housing and a rotatably drivable tool shaft that is mounted in the housing. Held upon the tool shaft is a hub portion that rotates with the tool shaft. On that side that faces the hub portion, the tool head is provided with at least one stripping edge, which has a radial component that extends from the inside to the outside, and which projects beyond the contour of the hub portion.Type: GrantFiled: April 15, 2003Date of Patent: March 1, 2005Assignee: Andreas Stihl AG & Co. KGInventor: Florian Hoche
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Patent number: 6854248Abstract: A string trimmer having the entrance to the air filter generally facing away from the forward direction of travel. Further, the filter intake is generally planar and is angled downwardly away from the plane normal to the direction of travel. The cross-sectional area of the filter intake is sized so as to reduce the velocity of air flowing through the filter intake.Type: GrantFiled: December 15, 2000Date of Patent: February 15, 2005Assignee: MTD Products IncInventors: Hartmut Kaesgen, Dennis Fowler
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Patent number: 6842984Abstract: A spooless trimmer head which utilizes finite lengths of trimmer line inserted through apertures in the trimmer head housing. The lines are thick, strong, long lasting and easily replaced when worn. One end of each line extends from the trimmer head to rotate and cut vegetation. The line includes a collar having a flange formed on an opposite end to retain a distal end of the line in the trimmer head housing. The line is crimped to the collar approximately ? the distance from the collar to the distal end of the line. The crimping location in combination with the position of the flange of the collar reduce the stress and strain on the trimmer line and enhance the longevity of the line.Type: GrantFiled: November 7, 2000Date of Patent: January 18, 2005Assignee: Weed Tiger, Inc.Inventors: Mary Ann Johnson, Richard O. Grant
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Publication number: 20040255564Abstract: A lawn maintenance and liquid dispensing apparatus includes a motorized lawn maintenance tool, with a connected spraying device for spraying a liquid, such as a pesticide, herbicide, or other agricultural liquid composition. The spraying device includes a container for holding the liquid and a nozzle for spraying the liquid. The nozzle is positioned at an angle so that the liquid dispensed from the nozzle is directed away from the apparatus. The container is connected to the nozzle by a fluid line. The container is positioned proximate a handle that is located on the upper portion of the apparatus, while the nozzle is positioned proximate the lower end of the nozzle.Type: ApplicationFiled: June 18, 2004Publication date: December 23, 2004Inventor: Francisco B. Loaces
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Publication number: 20040250522Abstract: A flexible cutting group consisting of a plate (1), supplied at the centre with a hole (2) for its fastening onto the rotating motorized group of the bush-cutter, and pieces of metal chain (4), intended to operate as cutting means; with said pieces of chain combined in a removable way to the plate (1) in symmetrical positions by appropriate fastening means (3).Type: ApplicationFiled: April 15, 2004Publication date: December 16, 2004Inventor: Loriano Brogi
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Publication number: 20040244347Abstract: A hole trimmer (10) capable of removing peripheral material projecting inside a perimeter of a first aperture (1), said hole trimmer (10) including: a severing mechanism (11) with first (14) and second (15) substantially opposed cutting surfaces, configured such that said first cutting surface (14) is capable of passing through said first aperture perimeter (1), whilst said second cutting surface (15) is incapable of passing through said first aperture (1) perimeter; an actuation mechanism (12) capably of reversibly moving said first (14) and second cutting surfaces (15) towards and away from each other about a first longitudinal axis, wherein, in use, second cutting surface (15) is inserted through said first aperture (1) passed said material until said first cutting surface (14) contacts said aperture (1) perimeter, whereupon, said actuation means (12) is activated to move said second cutting surface (15) along said first longitudinal axis into cutting contact with said first cutting surface (14), severingType: ApplicationFiled: August 2, 2004Publication date: December 9, 2004Inventor: Bernard Newton King
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Patent number: 6827152Abstract: A rotary head for dethatching machine includes a plurality of channels which are evenly distributed along the outer periphery of the rotary head for receiving flexible dethatching filaments. The dethatching filaments are elongated with a plurality of barb-like protrusions on one end thereof for engagement in the channels of the housings. Once a filament is inserted into a channel, it cannot be pulled out due to the protrusions engaging the interior and exterior walls of the channel of the rotary head. A plurality of rotary heads are mounted on a shaft of a machine. During rotation of the shaft and the rotary heads, the flexible filaments contact the accumulated dethatch with sufficient force to dislodge thatch for later retrieval and clean up.Type: GrantFiled: January 29, 2003Date of Patent: December 7, 2004Assignee: Kwik Products, Inc.Inventor: Fernando R. Iacona
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Publication number: 20040237491Abstract: A portable powered trimmer and mounting assembly for mounting on a mower deck or shroud of a lawn mower and including an arm assembly which mounts a powered trimmer head thereon. The arm assembly permits the trimmer head to be positioned in a plurality of cutting positions relative to the mower deck, and resiliently mounts the trimmer head for vertical and horizontal floating movement to allow the trimmer head to track both the ground and the contour of obstacles being trimmed around. The resilient mounting of the trimmer head also prevents damage to the trimmer head due to impact with obstacles encountered in the cutting path.Type: ApplicationFiled: May 29, 2003Publication date: December 2, 2004Inventors: Brent Heighton, Kenneth Abbott
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Publication number: 20040221560Abstract: A trimmer wheeled accessory for a gas or electric powered line trimmer used to support the distal end of the trimmer pole during operation. The accessory includes an extension arm that is longitudinally aligned with the trimmer main pole and selectively attached thereto via clamps. The distal end of the extension arm extends from the trimmer head. Attached to the distal end of the extension arm is a wheel assembly that supports and allows the distal end of the extension arm to roll on the ground or grass when cutting grass or weeds. The extension arm is sufficient in length so that the wheel accessory is located in front of the trimmer head. The extension arm may be rotated around the trimmer main pole so that the wheel assembly supports the trimmer head in both a horizontal or vertical alignment.Type: ApplicationFiled: June 25, 2003Publication date: November 11, 2004Inventor: Michael D. Dunda
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Patent number: 6810647Abstract: A support bar has an upper end and a lower end. A motor housing is coupled to the lower end of the support bar. The motor has a rotatable drive shaft and a pair of wires. The wires extend from the drive shaft. The wires are rotatable in a primary plane parallel with a plane of the grass to be mowed. The wires alternately are rotatable in a secondary plane. A deck is coupled to the housing and the deck. A flap and a pair of hinges couple the housing to an adjacent portion of the deck. A pair of riding wheels is coupled to the deck and adapted to ride on a top surface of grass when edging soil. A pair of guard wheels is coupled to the deck and adapted to ride on a side face of soil when edging soil.Type: GrantFiled: March 24, 2003Date of Patent: November 2, 2004Inventor: Takvor Evrikoz
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Patent number: 6804871Abstract: A method for aligning a clutch assembly having a clutch shaft and a housing with a plurality of threaded first fasteners. The method includes the steps of attaching the clutch assembly to a driveshaft of an engine mounted on a support frame having a plurality of second threaded fasteners. The method includes the steps of mounting a support plate to the housing and support frame and extending the first fasteners and second fasteners through mounting holes. The method also includes the steps of deflecting the clutch shaft relative to the driveshaft and disposing spacers over the first fasteners and second fasteners adjacent the support plate. The method includes the steps of engaging the first fasteners and second fasteners with third fasteners to seat the spacers against the support plate and fixedly securing the spacers to the support plate.Type: GrantFiled: April 30, 2003Date of Patent: October 19, 2004Inventor: Leward Nile Smith
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Patent number: 6796113Abstract: A guard and dolly for mounting a line trimming apparatus and maintaining the rotating spool or cutting element of the line trimming apparatus in a selected orientation with respect to the ground, in order to cut grass at a selected height above the ground regardless of the contour of the terrain, trim the grass adjacent to a structure such as a fence and edge along fixed structures such as a driveway or sidewalk. In a first embodiment a guard is provided with a tab-and-slot opening for receiving and mounting a corresponding motor coupling flange attached to the line trimming apparatus motor or frame. In a second embodiment, a universal dolly is characterized by a frame provided with front, rear and side wheel receptacles for receiving two or three wheels at selected receptacle locations and supporting the dolly frame in rolling relationship in a horizontal plane on a lawn for operation of the line trimmer in mowing, trimming and edging configurations.Type: GrantFiled: February 5, 2002Date of Patent: September 28, 2004Inventor: Mark R. Moore
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Publication number: 20040177484Abstract: An improved mounting arrangement for a knife to a disc for use on a rotary disc cutter that eliminates the need for a threaded connector and the associated nut is disclosed. It also provides a positive retention method on the top side of the disc. In addition, it provides a method of removing the knife from the disc without the use of wrenches, simply requiring a tool for prying, such as a screw driver. A further feature is a low profile retainer that does not need to be protected by a wear protector.Type: ApplicationFiled: March 12, 2003Publication date: September 16, 2004Inventors: Kent Thompson, Rustin V. Bentzinger
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Patent number: 6786030Abstract: The apparatus is a rotating trimmer head, commonly used with a mower deck combination, but not limited to such a combination, wherein the trimmer head is resiliently positioned with respect to the mower deck for horizontal movement with respect to the mower deck. A resilient member holds the trimmer in an extended position away from the mower deck and allows the trimmer to move to a retracted position adjacent the mower deck when the trimmer meets a fixed obstacle. The rotating head facilitates a smooth engagement between the trimmer head and the obstacle as the trimmer head moves around the obstacle. As a result, an operator may mow in a straight line and do the trimming without interfering with the mower or the main deck.Type: GrantFiled: September 5, 2002Date of Patent: September 7, 2004Inventor: Dean Nafziger
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Patent number: 6779324Abstract: A hand-held power tool includes an elongate shaft, a mounting structure disposed on one end of the elongate shaft, a cutting element, a prime mover, and an adjustable debris shield. The mounting structure has a rotation axis at an angle relative to the longitudinal axis of the elongate shaft. The cutting element is mounted to the mounting structure and includes at least one of a cutting line assembly and a rotary blade. The prime mover drives the mounting assembly to rotate the cutting element about the rotation axis. The adjustable debris shield has a first operative mode and a second operative mode. The adjustable debris shield has a first lateral span relative to the longitudinal axis when in the first operative mode and a second lateral span relative to the longitudinal axis when in the second operative mode. The second lateral is greater than the first lateral span.Type: GrantFiled: May 3, 2002Date of Patent: August 24, 2004Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Adam Hanes, Charles R. Spitler
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Patent number: 6779325Abstract: An edging and trimming assembly for use with a lawn mower includes a flexible shaft extending through a hollow arm with the arm being connected to a mower deck through a hub for pivotal movement of the arm. A gear train is connected to the lawn mower's power driven rod and is selectably coupled to one end of the flexible shaft for selectable rotation thereof. A trimmer head is attached to an opposed end of the flexible shaft and includes a cutter for cutting grass upon rotation of the trimmer head. A linkage extends between the arm and the trimmer head for adjusting the trimmer head between horizontal and vertical cutting planes. The linkage enables the trimmer head to move between selectable angular configurations. A shield member is rotatably coupled to the flexible shaft for surrounding the trimmer head and defines an opening through which the cutting member extends.Type: GrantFiled: May 20, 2003Date of Patent: August 24, 2004Inventor: James F. Robillard, II