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| Number | Title | Issue Date |
| 8176639 | Filament clamp for a vegetation trimmer A vegetation trimmer with a spool and hub assembly has a cutting filament wound around the spool. The free end of the filament extends through an aperture in the hub into the cutting plane. The spool and hub are rotated at a high rate to allow the filament to cut ve... | 05/15/2012 |
| 8151471 | Control handle of a bush cutter and a bush cutter therewith A control handle included in a bush cutter is provided. A driving controller is switched on so that the cutting blade is driven in an adjusted speed mode at a rotation speed set by a speed adjuster. The control handle includes a high-speed mode controller configured... | 04/10/2012 |
| 8146257 | Brush cutter A brush cutter is provided with fixing pieces projecting outward and opposing each other substantially at a middle position of a slit stretching between both ends of a clamp member. Accordingly, an outer pipe is clamped in the middle of an attachment housing and apa... | 04/03/2012 |
| 8127455 | Portable implement A portable implement is provided that includes a guide rod having a tool element arranged on one end and a motor for driving the tool element arranged on the other end. A holding element for holding the portable implement is arranged between the tool element and the... | 03/06/2012 |
| 8117756 | Bush cutter A bush cutter for performing weed-cutting operations while suspended from the shoulders of an operator. The bush cutter is provided with an operating rod and an operating handle, which is provided midway along the operating rod in the longitudinal direction. The rea... | 02/21/2012 |
| 8074363 | Rotary knife blade for low friction rotary knife A power operated knife comprises a blade supporting structure supporting an annular blade for rotation about a central axis. The blade and blade supporting structure are engagable along bearing contact locations that are spaced apart in a direction parallel to the a... | 12/13/2011 |
| 8069574 | Rotary cutter for mower A rotary cutter for a mower is described including at least one cord of a predetermined length extending from the cutting head driven for rotation, and at least one fastening element for fixing one end of the cord to the cutting head main body. The fastening element... | 12/06/2011 |
| 8061042 | Mowing head with peripheral members for engagement of the cutting line The mowing head (1) comprises: a body (3), which can be engaged to a motor shaft and defines a peripheral edge (3C); at least one member for anchorage (9) of a cutting line (F), with an elastically loaded eccentric oscillating element, wh... | 11/22/2011 |
| 8037611 | Rotary knife with blade bushing A powered rotary knife includes a handle, a blade housing, an annular blade, and a blade bushing for rotatably mounting the blade within the housing. The blade housing includes an inner groove that is operable to receive the blade bushing therein. The blade housing ... | 10/18/2011 |
| 8028424 | Cutting head for a brush cutter, edge trimmer or similar The invention relates to a cutting head for a brush cutter, edge trimmer or similar, the head being of the type including at least a passageway for a cutting string and a locking element of the cutting string. The cutting head is characterized in that the locking el... | 10/04/2011 |
| 8015713 | Portable handheld work apparatus A portable handheld work apparatus has a housing (2) which has at least one intake opening (20). A drive motor (4) is mounted in the housing (2) and this drive motor drives a fan wheel (9). The fan wheel (9) inducts a coolin... | 09/13/2011 |
| 8001694 | Fixed line rotary head trimmer with quick friction rotational lock for string trimmer machine A trimmer head which receives fixed-length trimmer line segments has a housing with a side wall forming an open end with opposed holes formed therein. The trimmer head receives an insert that is rotated by the main housing. The insert has an arcuate channel from the... | 08/23/2011 |
| 7984555 | Mower head with protection for a cutting cord The mower head (1) includes a body (3) with at least one exit hole (9A) for one end of a cutting cord (F) and includes, adjacent to the exit hole of the cutting cord and on at least one side of said hole, a radial projection (11) to prote... | 07/26/2011 |
| 7979991 | Vegetation cutting device 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 h... | 07/19/2011 |
| 7966736 | Grass-cutting head with spiral guide channels for the cutting line The grass-cutting head (101) has a body (103) forming a housing for at least one spool of cutting line (F1; F2), provided with at least one outlet hole (111) of an end of the cutting line wound on said spool positioned inside the h... | 06/28/2011 |
| 7891099 | Damped guiding unit and portable implement A damped guiding unit for a portable implement includes a connection element arranged at one end of a guide rod element, for connection of a tool element for the sawing, cutting and/or scything of undergrowth or of grass. A damping element is arranged on the connect... | 02/22/2011 |
| 7882642 | Trimmer head for use in flexible line rotary trimmers having improved line loading mechanism A trimmer head for use with a length of flexible cutting line in a rotary trimmer comprising a housing operatively connected to the trimmer to effect rotation of the head and a spool for carrying the cutting line thereon. The spool is operatively connected to the ho... | 02/08/2011 |
| 7836602 | Protective shield for a trimmer A protective shield for a trimmer having a cutting head that is rotatable about an axis of rotation and supports a cutting thread that rotates about an axis of rotation with the cutting head and determines a cutting circle, covers at least partially the cutting circ... | 11/23/2010 |
| 7823291 | Rotary cutter for mowing machine A rotary cutter for a mowing machine includes a cord for mowing grass by rotating, a reel which contains the cord and intermittently rotates to pay out the cord, a case which contains the reel, and a cover which covers the case, wherein the reel includes an upper ca... | 11/02/2010 |
| 7805844 | Electric bush cutter An electric bush cutter includes an electric motor, which rotates a cutting edge through a centrifugal clutch, and an operating unit capable of adjusting rotational speed of the electric motor in accordance with an operation amount of the operating unit. A starting ... | 10/05/2010 |
| 7797839 | Trimmer head for use in flexible line rotary trimmers having improved line loading mechanism A trimmer head for a rotary line trimmer including a housing operatively connected to the trimmer and a spool for carrying cutting line thereon. The spool is operatively connected to the housing for rotation therewith and defines a line receptor channel having oppos... | 09/21/2010 |
| 7762002 | Trimmer head for use in flexible line rotary trimmers having improved line loading mechanism A trimmer head for use in a flexible line rotary trimmer including a housing adapted to be operatively connected to the trimmer to effect rotation of the head and a spool operatively connected to the housing for rotation therewith. The spool defines at least one inw... | 07/27/2010 |
| 7743511 | Powered disk preferably with oscillateable, trimmer-line-hook mounts A trimmer line, hook disk system forming a line trimmer head (e.g., FIGS. 10 & 10A, 19 & 20) for attaching to a powered, rotational device (FIGS. 11-16) to provide a line filament grasscutting/weed-removal action. The trimme... | 06/29/2010 |
| 7739800 | Combination blower, trimmer and edger for tending vegetation An engine is connected to the upper end of a drive shaft housing and a work head with a string trimmer or blower or both is operatively connected to the lower end of the drive shaft housing and is rotatably driven by an engine rotating a drive shaft inside the drive... | 06/22/2010 |
| 7665215 | Fixed line trimmer head with ease of loading A head for string trimmer machines uses fixed length segments of line including at least two line segments. The head includes a generally cylindrically shaped main housing member with at least two sets of first and second line entry holes on the housing member inter... | 02/23/2010 |
| 7640668 | Quick loading cutting head for a rotary trimmer A cutting head for a rotary trimmer is provided. The cutting head of the present disclosure provides a control mechanism for loading a spool member of the cutting head quickly and efficiently without having to disassemble the cutting head. In one embodiment, a contr... | 01/05/2010 |
| 7627952 | Vegetation trimmers The present invention provides a vegetation trimmer comprising a cutting head (20) located at one end thereof, a rear handle (60) located at the other end thereof, a motor (10), and a flexible drive shaft (30) for transferring the output ... | 12/08/2009 |
| 7614153 | Rotary head for garden trimmers, of the type comprising pivoted cutter means The rotary head (10) for garden trimmers, of the type with its cutter means (28, 30) pivoted to the head (10), comprises a lower shell (12) and an upper annular shell (14). The lower shell (12) is fixable coaxially to the tr... | 11/10/2009 |
| 7607232 | Vegetation cutting device 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 h... | 10/27/2009 |
| 7603782 | Universal, trimmer line, hook disk system A trimmer line, hook disk system in the form of a line trimmer head (e.g. FIGS. 11 & 11A) as a replacement for attaching to a powered, rotational device to provide a line filament grass cutting action, which trimmer head includes a circular, protective... | 10/20/2009 |
| 7594334 | Vibration-absorbing coupler and portable brush cutter provided with the vibration-absorbing coupler A vibration-absorbing coupler (30A) which is capable of suppressing the torsional vibration of the transmission shaft (7) and also capable of enhancing the durability thereof is disclosed. This vibration-absorbing coupler (30A) is featured in th... | 09/29/2009 |
| 7587828 | Cutting head for a brush cutter, edge trimmer or similar A cutting head for a brush cutter, edge trimmer or similar, the head comprises a passageway (112) for a cutter string (300) and at least one curved surface (120) for supporting the string, the surface extending between an exit region (115... | 09/15/2009 |
| 7584542 | Trimmer A trimmer comprises a cutting head (1) housing a cutter (5), and an elongate shaft (2) for supporting the cutting head. The cutting head (1) is connected to the shaft (2) by connection means (3) permitting the cutting head (... | 09/08/2009 |
| 7581322 | Trimmer head for use in flexible line rotary trimmers having improved line loading mechanism A trimmer head for use in a flexible line rotary trimmer including a housing adapted to be operatively connected to the trimmer to effect rotation of the head and a spool operatively connected to the housing for rotation therewith. The spool defines at least one inw... | 09/01/2009 |
| 7543387 | Cutting unit and cutting filament for a plant cutting device A cutting unit for a plant or vegetation cutting device and which comprises a rotary cutting head and at least one cutting filament extending radially from the head. The filament has a cutting edge which is defined by two intersecting faces, and the filament is reta... | 06/09/2009 |
| 7536792 | Head for a rotary line trimmer apparatus An improved head for a flexible line trimmer apparatus is provided. The improved head includes a metal tubing that extends through the head and surrounds a cutting line of selected length. The tubing is provided with a flared exit portal increasing the efficiency of... | 05/26/2009 |
| 7520060 | Trimming device with a reel protector The invention pertains to a trimming device with a motor-driven cutting tool that is rotatable about a shaft and with a shell-like reel protector (100), wherein said trimming device can be operated with different cutting tools. In order to achieve a simple ad... | 04/21/2009 |
| 7520061 | Manually guided trimmer A manually guided brushcutter or other trimmer having a guide tube that accommodates a transmission shaft, with a drive motor that drives the transmission shaft and a housing that secures the drive motor to the guide tube. The housing is embodied as a closed engine ... | 04/21/2009 |
| 7513046 | Trimmer head for use in flexible line rotary trimmers having improved line loading mechanism A trimmer head for use in a flexible line rotary trimmer including a housing adapted to be operatively connected to the trimmer to effect rotation of the head and a spool operatively connected to the housing for rotation therewith. The spool defines at least one inw... | 04/07/2009 |
| 7493697 | Lawn mower A lawn mower comprises an operation arm, a driven shaft rotatably supported inside the operation arm and having two opposite ends, a cutter operatively connected to one end of the driven shaft, a power source operatively connected to the other end of the driven shaf... | 02/24/2009 |
