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Class 30/276 - Rotary blade


Subclass of Class 30 - Cutlery
Definition: Implements in which the blade is given a rotary movement
No. of patents: 813
Last issue date: 05/15/2012


          11            
NumberTitleIssue Date
5615970String trimmer having knock-down handle
A string trimmer having a knock-down construction which enables the trimmer to be shipped in a partially disassembled condition and quickly assembled by an end user without the need for special tools and without the need for a large plurality of assembly ...
04/01/1997
5615543Rotary cutting head
A rotary cutting head adapted for attachment to a conventional line trimmer including a cutting disk having a circular plate and a peripheral side wall integral with the circular plate. The peripheral side wall has a pair of integral gussets, each having ...
04/01/1997
5599233Coaxial drive cable centering apparatus
Flexible centering apparatus for centering a flexible drive cable within a cylindrial cable housing, the centering apparatus formed of an elongated finned sleeve in which radially disposed fins engage the cable housing, the fins being free and unattached ...
02/04/1997
5594990Lawn trimming and edging apparatus having motor housing rotatable on extendable handle
A powered lawn and garden tool for trimming and edging lawns is specially adapted for shipping and storing in collapsed state for reduced package sizes includes a single length of tube that is received within an extended neck portion of a motor housing. D...
01/21/1997
5584348Guard for a string-type lawn trimmer
The present invention provides an arcuate ring guard for a conventional lawn trimmer having a string-type cutting blade, which rotates in a planar cutting circle, and an arcuate housing covering the rearward region of the cutting circle but having an open...
12/17/1996
5582041Portable hand-held fleshing tool
The tool includes a linear housing, a thin circular fleshing blade with a cutting edge around its perimeter, and a guard member. The housing encompasses an air-driven or electric motor and serves as a handle. A rotary drive shaft projects at an angle from...
12/10/1996
5566455Rotary filament vegetation trimmer with air cooled filament
This rotary filament vegetation trimmer improves the life expectancy of plastic filaments by improved and simplified control of a refrigerated air flow path about the filament of sufficient magnitude to prevent overheating resulting in catastrophic failur...
10/22/1996
5560108Electric tool with an extendable handle
An electrically powered tool, in particular an electrically powered tool of the type which includes a shaft assembly of adjustable length, also includes: a handle assembly; a cable entry mounted in the handle assembly; a shaft assembly, one end of which i...
10/01/1996
5558057Operator carried power tool having a four-cycle engine
A hand held powered tool is provided which is intended to be carried by an operator during use. The power tool has a frame, including a handle to be grasped by the operator, an implement affixed to the frame having a rotary input member and a small four-c...
09/24/1996
5551156Revolving blade skinning device
A revolving blade skinning device is provided with a pair of housing shells, a drive motor mounted within the housing shells, a blade support mounted to the housing shells, a blade mounted on the blade support for rotation relative to the housing shells, ...
09/03/1996
5544417Multi-purpose motor mounting system for a string trimmer
A motor mounting plate system enables a motor to be mounted within a string trimmer without the need for a plurality of precisely formed ribs to support the motor within the housing. The motor mounting plate apparatus includes a planar mounting plate memb...
08/13/1996
5542183Firefighter's ceiling cutting tool
A fire fighter's tool for cutting through ceiling and wall panels which includes a base shaft within which telescoping expandable tubular sections are stored. The base shaft carries a power cord reel, counterbalance, and a control handle. A retractable po...
08/06/1996
5540291Switch actuator for a portable power tool
A hand held power tool is disclosed comprising an internal combustion engine, a workpiece driven by the engine, a boom extending between the engine and the workpiece, and an actuator for a kill switch of the engine. The actuator includes a collar disposed...
07/30/1996
5529532Minature motorized annular hand held dental saw
A miniature motorized hand held dental saw wherein, like with a coping saw, the axis of rotation of the handle of the dental saw is tangent with the outer diameter of the blade. This important characteristic, combined with the use of a flexible blade, ena...
06/25/1996
5526572Cutting head for a cord type mower
A cutting head for a cord-type mower driven by an engine is disclosed. The cutting head includes a rotor capable of rotating about an axis and a bobbin with a cord wound on it. The bobbin can rotate relatively to the rotor about the axis in the rotor. The...
06/18/1996
5524349Lawn trimmer shield
A protective shield for a grass and weed trimmer which prohibits grass and weed clippings and other debris from reaching the operator. The shield is characterized by a clamping member for securing the shield to the trimmer, a supporting member attached to...
06/11/1996
5524350Cutting line filled with inorganic grit material
A cutting line for grass trimmers, lawn mowers, and edgers of the type having a rotating head. The cutting line includes a carrier formed from a polymeric material and an inorganic grit material impregnated within the carrier. Preferably, the grit materia...
06/11/1996
5522140Cutting head for a cord type mower
A cutting head for a cord-type mower driven by an engine is disclosed. The cutting head includes a rotor capable of rotating about an axis and a bobbin with a cord wound on it. The bobbin can rotate relatively to the rotor about the axis in the rotor. The...
06/04/1996
5522142Rotary knife and slicing gauge
A rotary knife for slicing thin strips from comestible product comprising a handpiece, a blade housing removably secured to the handpiece and an annular blade supported for rotation by the blade housing. A rotary driver is carried by the handpiece and eng...
06/04/1996
5522141Cutting head for a cord type mower
A cutting head for a cord-type mower driven by an engine is disclosed. The cutting head includes a rotor capable of rotating about an axis and a bobbin with a cord wound on it. The bobbin can rotate relatively to the rotor about the axis in the rotor. The...
06/04/1996
5493784Blade cover for cutting machine
A blade cover for a rotary blade weed or grass cutter is formed with a body adjustably fixed to a bracket provided on the operating shaft. Either the bracket or the attachment part is provided with long holes extending slantingly downwards to the main bod...
02/27/1996
5493783Grass trimming device
A grass trimming device for removal of grass which overgrows a concrete doughnut positioned on the ground surrounding a sprinkler head of an underground lawn sprinkler system. The device is connectable to a lawn trimmer having a rotating upright output sh...
02/27/1996
5493785Rotary grass cutting head
A heavy-duty, long-life, light-weight, replaceable rotary cutter head accessory for attachment to a rotary member of a vegetation trimmer is provided by this invention. The invention is characterized by several novel construction features that give the he...
02/27/1996
5490641Vegetation cutters
A spool (30) for a rotary cutter, such as a lawn mower edger or trimmer of the type using a flexible line (38) as a cutting member, comprises a core portion (32) and at least two flange portions (34), (36) spaced apart on the core portion (32) for support...
02/13/1996
5483733Method of making an angle gear drive
An angle gear drive for a portable lawn care implement including first and second housing portions molded to net shape. First and second housing portions support an input shaft having a bevel gear and an output shaft having a mating bevel gear. The assemb...
01/16/1996
5484331Method and device for hot fat trimming
A method and device for retaining a pre-determined thickness of fat on a carcass or piece of meat is provided. A guide for a trimming knife is provided comprising a means for contacting meat that is capable of compressing fat substantially to the surface ...
01/16/1996
5472448Surgical knife blade holder and support
The surgical knife of the present invention includes a substantially cylindrical housing which has an external housing surface and one open end. A planar knife blade is support for axial movement within the housing so that one end of the knife blade can b...
12/05/1995
5463942Motorized tool for slicing and tenderizing foods and method
A motorized tool for slicing food having a motor, a cutting tool, a shaft, and a connector connecting the shaft to the motor. The cutting tool mounted to the shaft. Alternatively, the invention can be converted into a motorized tool for tenderizing meats ...
11/07/1995
5463815Ribbed flexible cutting line
A line for a rotating trimmer has a plurality of longitudinal outwardly-extending cutting edges, spaced circumferentially about the main body portion of the line. A cross-sectional area of the main body portion is selected to be between 70 percent and 90 ...
11/07/1995
5461787Filament-type trimming apparatus
A filament-type trimming apparatus comprises a reel case including a main body and a bottom member, a cord reel housed in the reel case and which is wound with a nylon cord, plural stoppers on a lower surface of the cord reel and on an inside of the botto...
10/31/1995
5447206Trigger retainer for a portable power tool
A trigger retainer assembly for a portable power tool such as a line trimmer has an internal combustion engine and a workpiece driven by the engine. The trigger retainer assembly includes a housing grippable by an operator, a trigger disposed at least par...
09/05/1995
5446964Apparatus and method for packaging and assembling a flexible line trimmer
A flexible line trimmer for shipping and storing in a knocked down version for reduced package sizes includes a single length of tube that is received within an extended neck portion of a motor housing. During final assembly, the tube is extended and lock...
09/05/1995
5441115Edging blades for constructing bevelled and angled contours for landscaping purposes
A bevelled edger blade has a base side attachable centrally to a conventional edger shaft. Ends of the base side having cutting edges are extended an equal distance in opposite directions from a blade axis at a central attachment orifice on the base side ...
08/15/1995
5433006Mowing apparatus
A mowing apparatus including: a motive power source; a circular rotational member which is adapted for rotation by the motive power source; at least one flexible cutting line having opposite ends and being adapted to setting on the rotational member in su...
07/18/1995
5430944Electric rotary hand tool, especially hand circular saw
In an electric hand-operated machine tool, particularly a hand-operated circular saw, with a drive spindle which is driven by an electric motor via a gear unit, a spindle locking arrangement is provided for locking the drive spindle when changing the rota...
07/11/1995
5430943Unitary cutting attachment for vegetation cutting devices
A cutting attachment for use with a vegetation cutting device. The cutting attachment has a body with a generally planar coupling portion and a central axis of rotation. In one embodiment, the body further includes a conical central wall portion extending...
07/11/1995
5426852Power hoe
A power hoe attachment for attachment to a power grass trimmer or the like includes a blade member of a continuous length having a first end attached to a disc shaped member and a second end attached to the disc shaped member. The disc shaped member conta...
06/27/1995
5423126Flexible flail trimmer
A flexible flail trimmer for conventional trimming of grass, weeds and other vegetation and for edging of sidewalks includes a rotatable combined guide and guard having a depth gage for providing positive vertical indexing during an edging operation. A tr...
06/13/1995
5424128Flexible cutting line with controlled drag
A monofilament line for a rotating string trimmer has a main body portion of a generally circular configuration. One or more sharp longitudinal cutting edges are integrally formed with the main body portion and protrude from the main body portion at an an...
06/13/1995
5414934Exchangeable sleeve bearing for a vegetation cutter apparatus
A vegetation cutter apparatus having a drive motor which drives a cutterhead via a drive shaft journalled in a guide tube, The cutterhead is held in a sleeve bearing at the end section of the guide tube facing away from the drive motor, The cutterhead is ...
05/16/1995
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