Class 30/347 - Rotary

Subclass of Class 30 - Cutlery
Definition: Blades in which the blade is so constructed as to be rotated
No. of patents: 312
Last issue date: 10/27/2009

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Number	Title	Issue Date
7607233	Cutting wire for brush cutters and edge trimmers The invention relates to a cutting wire (2) which is designed to trim or cut vegetation and which can be used on rotating head devices, such as brush cutters and edge trimmers. The external surface of the cutting wire is provided with tooth-type (5) or...	10/27/2009
7412768	Invertible trimmer line spool for a vegetation trimmer apparatus A vegetation trimmer comprising an elongate main handle to which is connected a motor that rotatably drives a trimmer head located at a distal end of the handle. The trimmer head defines a rotational axis and includes a housing and a spool rotatably received in the ...	08/19/2008
7395601	Rotary flail feeding device A rotary flail feeding device for trimming vegetation includes a head for storing flail line and a unitary, removable subassembly comprising a winding post and a line guide ring rotatably mounted on the post. The subassembly is removed from the head to facilitate lo...	07/08/2008
7370424	Cutting string for plant cutting appliance A plant or vegetation cutting device which comprises a rotary cutting head and at least one cutting filament or string extending radially from the head, such that upon rotation of the head, the string is extended by centrifugal force and cuts through the plants or v...	05/13/2008
7325755	Rotary tool for spreading particulate materials and method of using the same The rotary tool for spreading particulate materials from a mound of the same. The tool has an elongated shaft with a rotatable body mounted proximate a first end thereof. The body has a peripheral edge with a plurality of flexible fingers radiating outwardly therefr...	02/05/2008
7284331	Trimmer guard An improved trimmer guard (15), for use with a trimmer (16) having a motor (18), a head (19) and a shaft (20), comprising a mounting assembly (23) configured to mount to a trimmer shaft, a frame (24) supported by the ...	10/23/2007
7275324	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 lin...	10/02/2007
7275325	Bush cutting machine A bush cutting machine with a tubular operating pole connected to an outlet of an exhaust muffler and doubling as an exhaust passage is provided. Exhaust gases discharged from an engine flow from the exhaust muffler through the operating pole and are then discharged...	10/02/2007
7270531	Assembly for use in continuously forming one or more lengths of noise attenuating flexible cutting line for use in rotary vegetation trimmers An assembly for use in continuously forming a plurality of lengths of flexible noise attenuating cutting line for use in rotary vegetation trimmers. The assembly includes a breaker plate having a conically shaped inner portion and a planar outer portion. A plurality...	09/18/2007
7257899	Composite circular slicer knife A substantially circular slicer knife is provided having an interior base portion made of a first material and an outer edge portion made of a second material. The outer edge portion is metallurgically bonded to the interior base portion. ...	08/21/2007
7225713	Cutting blade for a motor-driven, manually-guided implement A cutting blade for a motor-driven implement is provided. The cutting blade has a main body having a central fastening opening and blade sections that extend approximately radially from the main body. The blade sections have edges that extend in a radial direction a...	06/05/2007
7219431	Trimmer with replaceable line cartridge 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 (...	05/22/2007
7210231	Noise-reducing cutting line for a vegetation cutting device A cutting line for brush-cutting, edge-trimming and similar has a generally circular cross-section and, on its periphery, has a plurality of notches spaced apart by a distance of between 12 and 19 mm approximately and aligned along at least one direction parallel to...	05/01/2007
7194933	Composite circular slicer knife A substantially circular slicer knife is provided having an interior base portion made of a first material and an outer edge portion made of a second material. The outer edge portion is metallurgically bonded to the interior base portion. ...	03/27/2007
7192541	Method and apparatus for solid-stranding a flextube unit A solid-stranding method and apparatus for forming optical cables. Solid-stranding combines buffering and stranding operations, as well as performs the stranding operation while the flextubes are still hot so that they adhere together without additional binders. Opt...	03/20/2007
7188424	Cutting wheel A cutting device in accordance with the present invention is deal for use in cutting pizza and other “flat-bread” like cuisine. For example, in accordance with various embodiments, a cutting device is provided which exhibits improved functionality and ease of us...	03/13/2007
7174639	Bush cutting machine 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...	02/13/2007
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 projecting from the underside of the blade. Several preferred embodim...	02/06/2007
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 preferred embodiment, a cutting blade is attached to each recessed seat so th...	01/02/2007
7134208	Ergonomic handle for vegetation trimmer 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. T...	11/14/2006
7111403	Head for line trimming apparatus 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...	09/26/2006
7100287	Trimmer lawn mowing device A lawn trimming device attachable or attached to the power take off end of a line trimmer primary unit to be powered by the line trimmer. The device includes a hood with a downwardly facing opening to allow the opening to be placed parallel to the ground, the hood d...	09/05/2006
7059106	Adjustable spindle assembly for a grass trimmer 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 ...	06/13/2006
7017272	Weed and grass trimmer 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 ...	03/28/2006
6983543	String trimmer head A head for a string trimmer machine includes a housing member having a central axis. The housing member is adapted for attachment to a string trimmer machine and includes a serpentine guide path in the housing for a length of trimmer line, with the guide path being ...	01/10/2006
6978532	Mower bed blade method A method of forming a durable mower bed blade is provided in which the grain of the metal is perpendicular to the longitudinal axis of the blade. The blade is formed in part by coining the blade on a hydraulic press which strengthens the cutting edge and other areas...	12/27/2005
6952877	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...	10/11/2005
6944954	Grass-cutting head with reloading of the line without removal of the spool 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 wit...	09/20/2005
6944956	Fixed-line trimmer head 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 tr...	09/20/2005
6945850	Saw blade with abrasive surface The present invention relates to a saw blade for cutting and finishing the surface of a work piece. The saw blade having a set of teeth disposed about the outer edge for making a cut in a work piece and an abrasive secured to the lateral surface of the saw blade. Th...	09/20/2005
6935940	Metal single layer abrasive cutting tool having a contoured cutting surface This invention relates to an abrasive cutting tool comprising: i) a substrate surface having a plurality of teeth extending therefrom, and ii) a single layer of abrasive grains chemically bonded to at least a porti...	08/30/2005
6928741	Fixed line head for flexible line rotary trimmers A cutting head for rotary trimmers in which at least one, and preferably two relatively short fixed lengths of flexible cutting line are inserted into opposed channels in the head and are secured in place by a pair of spring biased toothed cams. Each of the cams is ...	08/16/2005
6925789	Cutting apparatus for a lawn mower 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 resp...	08/09/2005
6925718	Tool head A tool head for a motor-driven, manually guided implement for receiving a rotatable cutter tool is provided. The tool head comprises a housing in which is provided a tool shaft that is rotatably mounted via bearings. Secured on the tool shaft so as to turn with it i...	08/09/2005
6913539	Flexible drive shaft liner A flexible, rotating drive transmission assembly having a substantially spiral-shaped liner supporting a center, rotatable, flexible shaft. The liner and its center shaft are carried within an outer down-tube. The spiral-shaped liner contains flexible, continuously ...	07/05/2005
6901667	Trimmer head for use in flexible line rotary trimmers An improved flexible line rotary trimmer head of the type adapted to be bumped against the ground to effect payout of predetermined lengths of cutting line and which is secured to the trimmer by a drive bolt having a non-circular head portion and a depending shaft p...	06/07/2005
6880249	Molded plastic blade holder In combination, a toroidal rotary knife blade having a sharpened circular lower edge and an upper blade holder engagement section and a blade holder for the toroidal rotary knife blade. The blade holder includes a generally toroidal blade holding ring having an uppe...	04/19/2005
6862811	Automatic line feed device A trimmer head for a line trimmer includes an automatic line feeding mechanism. The trimmer head accepts a spool of cutting line and spins extended line to trim, for example, unwanted vegetation in lawns. Upon actuation of the automatic line feeding mechanism, damag...	03/08/2005
6854185	Vegetation trimmer apparatus A vegetation trimmer comprising an elongate main handle to which is connected a motor that rotatably drives a trimmer head located at a distal end of the handle. The trimmer head defines a rotational axis and includes a housing, a spool rotatably received in the hou...	02/15/2005
6851191	Reel for winding a cutting cord for a grass-cutting device and head for grass-cutting device incorporating said reel A reel (1) for winding a cutting cord for a grass-cutting device is described, said reel comprising a first and a second series of axially and angularly staggered teeth and, having constrained with it, an axially movable slider (21) provided with a too...	02/08/2005

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Class 30/347 - Rotary