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8152600 |
Sharpener for rotary cutters
Apparatus, systems and methods in accordance with the present invention are related to sharpening blades for rotary cutters. In one illustrative embodiment of a system in accordance with the...
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8092279 |
Sharpening system for scissors with complex curved blades
A device and method of sharpening hair cutting scissor blades passes a blade over the perimeter portion of a flexible sharpening pad to flex the perimeter portion out of the plane of the pad. The...
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8033894 |
Razor blade sharpener and method of sharpening
A device for sharpening razor blades, comprising, a housing having an upper casing and a lower casing defining an interior space, the upper casing having an opening, and a lid to cover the opening,...
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7993183 |
Method of sharpening a wood working knife
A method for sharpening a wood working knife having opposed cutting edges, wherein the knife body is held by clamping features on a first surface of the knife and the opposed edges are...
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7959494 |
Sharpening cutting blades having a progressively changing cutting angle
A blade, such as the blade of a precision shear, having a cutting angle which changes progressively along the length of the blade through a predetermined angular measure is sharpened by coupling...
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7934978 |
Ice skate blade sharpening machine
A ice skate blade sharpening machine comprises a skate holder which holds the blade in a releasably fixed position, a rotatable grinding wheel having a periphery and rotatable about a grinding...
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7918715 |
Device and method for sharpening blades
A method and apparatus for sharpening clockwise rotating standard blades, counter-clockwise rotating standard blades and mulching style blades of either clockwise or counter-clockwise rotation is...
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7896729 |
Universal rotary blade holder for sharpener
A blade-sharpening machine for sharpening any one of various sizes of rotary blades comprises a drive unit and a universal blade chuck for holding the blade to be sharpened. The drive unit further...
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7874896 |
Sharpening guide assembly
A sharpening guide assembly to be removably attached to a sharpening stone to provide for smooth, controlled and accurate motion when sharpening a blade is provided. The assembly includes a body...
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7857681 |
Automatic rotation knife sharpener
The present invention is directed to an automatic rotation knife sharpener where the crossed sharpening rods are automatically rotated each time a knife is passed down and through the sharpener....
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7828629 |
Knife grinder
A knife grinder comprises a housing, wherein a grinding mechanism is arranged. A magnetic body is arranged under the grinding mechanism to attract metal scraps. Since the magnetic body is arranged...
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7740522 |
Knife sharpener
A motorized knife sharpener includes means of for sharpening heavy, medium, and fine blades at angles appropriate to the cutting edges of such blades.
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7722443 |
Knife blade dressing apparatus
A dressing device for sharpening or conditioning of a blade or the like includes one or more disk pairs each having a pair of disks respectively presenting a plurality of ribs. The disks are...
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7686676 |
Precision sharpener for hunting and Asian knives
A knife sharpener is provided which is capable of precision sharpening of hunting and similar knives that have a first and second blade face, each of which terminates at a facet that meets the...
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7614938 |
Reconditioned medical devices
A method of reconditioning a medical device may include removing a portion of the medical device, and attaching to the medical device a replacement piece formed from nickel carbide and sized,...
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7614937 |
Cutting device and method of generating cutting geometry
An ultrasonic blade includes a blade body and a cutting edge. The blade body is defined about a generally axial line. The cutting edge is on the blade body and is defined by the intersection of a...
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7553220 |
Retractable abrasive sharpener and carrying case
A hand held retractable abrasive sharpener having a rod formed with a tapered end portion and a partially cylindrical opposite end portion. A part of the partially cylindrical opposition end...
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7553216 |
Honing guide assembly
A honing guide and bevel setting jig for removable attachment to the honing guide to properly position the angle and projection of a tool to be sharpened in the jig to enable the tool to be honed...
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7530884 |
System and method for duplicating keys
A key duplication system employs a modular key duplication attachment in combination with a high-speed, rotary powered tool and a profiled abrasive cutter. The attachment comprises a base, a...
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7503835 |
Lawnmower blade sharpener
In one embodiment, a method of sharpening reel blades on a lawnmower reel includes positioning a grinding wheel in contact with the reel, rotating the grinding wheel about an axis of rotation,...
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7465220 |
Apparatus and method for corrugating resharpened blades
An apparatus and method are provided for cutting corrugations into the resharpened blade of a scissor. The apparatus comprises a rotatable corrugating wheel. The peripheral annular...
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7455572 |
Method and device for grinding a saw chain
A method and device for grinding a saw chain (26), the saw chain (26) being clamped in a position suitable for grinding. A rotating grinding disc (11) is manually transferred from an inactive...
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7413504 |
Blade sharpening device with blade contour copying device
The present invention provides a blade sharpening device designed for sharpening a blade for a uniform sharpening of the edge thereof. The blade sharpening device contains a base having a guide...
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7387562 |
Blade sharpening device
A blade sharpening device is provided for honing a cutting edge of a blade. The device includes a block with a top honing surface, and a jig assembly mounted on the block. The jig assembly holds a...
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7374470 |
Knife sharpening apparatus
A sharpening apparatus having at least one guide slot, a drive pulley drivingly coupled to a frame and at least one idler pulley rotatably coupled to a support member. The support member is...
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7338351 |
Apparatus and method for sharpening tool blades
A sharpening device for the blade of a tool such as a chisel or plane is in two parts. The first is a jig into which the blade is inserted with its tapered end projecting some distance beyond the...
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7335093 |
Blade sharpening holder
A sharpening holder for manually-sharpening a cutting edge to be honed over a honing surface includes a body, an adjustable clamping component, and a plurality of roller members. The body has a...
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7329172 |
Rotary mower blade sharpener having movable griding wheels
A device and method for sharpening a mower blade are provided, in which a mounting device for mounting a rotary blade having two opposite cutting edges to be sharpened, wherein the mounting device...
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7238096 |
Orbital rotary blade sharpener
An orbital rotary blade sharpener for sharpening rotary cutter blades and other rotary blades includes a bottom blade holding portion having a center and a perimeter edge, a top blade holding...
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7220170 |
Blade sharpening machines
The invention concerns a blade sharpening machine that can be driven either by manual or automatic control. The blade sharpening machine possess two rotating grinding wheels and a mechanism for...
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7220169 |
Sharpening apparatus
A sharpening apparatus (16) for a blade-like cutting implement. The sharpening apparatus has an elongate body (18) and a cutting edge extending widthwise across one end of the body (11) at a...
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RE39492 |
Method for sharpening bedknives
A method of sharpening bedknives for reel type mowers by installing sets of locator surfaces in a bedknife grinder, grinding the surfaces with the grinder to be aligned and parallel, installing a...
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7134935 |
Lubricated razor blade edge sanitizer and sharpener
An automatic razor blade sharpener simultaneously sharpens and sanitizes multiple edges of a spring-loaded disposable razor blade cartridge without edge overheating by lubricated gentle contact of...
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7134937 |
Food product slicer with knife sharpener and associated knife guard
A food product slicer with a rotatable slicer knife includes a knife sharpener and an associated knife guard assembly with a guard member positioned for protecting the edge of the knife when the...
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7112124 |
Rotary blade sharpener
A rotary blade sharpener is comprised of a motorized platen positioned in a housing with a surrounding wall and an open top. An abrasive sheet with an adhesive bottom surface is adhered to a disc,...
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7083503 |
Method for sharpening the knife of a rotary trimmer and a rotary trimmer for realizing the method
A rotary trimmer includes a first trimming element having a first knife and a second trimming element having a second knife that operates jointly with the first knife. In order to sharpen one...
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7066793 |
Mechanical non-serrated knife grinder and honer
A non-serrated knife sharpening device providing a multitude of blade angle choices during the tapering and honing processes. The adjustable angle choices can be regulated fractionally, grossly,...
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7037175 |
Method of sharpening cutting edges
The invention is directed to a method for polishing a cutting edge on a cutting instrument, comprising contacting a cutting edge of a cutting instrument with a polishing pad and a...
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7033247 |
Electric sharpener
The invention relates an electric sharpener, comprises a main frame, a main shaft, a motor, a transmission wheel, a grinding stone, and an electric control circuit. The motor is mounted on an...
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6969299 |
Razor blade sharpener
An automatic razor blade sharpener simultaneously sharpens multiple edges of a spring-loaded disposable razor blade cartridge by gently contacting the blade edges with a moving rubber or polymeric...
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6955584 |
Grinding machine comprising a measuring system and control for providing a master blade and method for providing a bar blade
An apparatus includes a blade grinding machine, a measuring system and a control for providing a bar blade suitable for cutting work pieces. The blade grinding machine includes a clamping mechanism...
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6942551 |
Method for forming a cutting edge along an edge portion of a blade stock
A method for forming a cutting edge along an edge portion of a blade stock, wherein the method includes moving the blade stock with respect to a first cutting element rotating about a first...
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6932684 |
Reciprocal blade lapping machine
A reciprocal blade lapping machine (20) is taught that is used for sharpening cutting and shearing blades. The lapping machine consists a convex lap plate (32) mounted on an enclosure (22) rotated...
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6905403 |
Knife-sharpening machine
The invention relates to a knife sharpening machine comprising a plate-type holding device on which two intersecting sharpening bars are rotationally mounted and loaded in relation to each other by...
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6881137 |
Manual knife sharpener with angle control
A sharpener for blades comprises a physical structure supporting at least one abrasive surface. A displaceable guiding plate having an integral linear structural feature of the support is disposed...
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6860796 |
Single station blade sharpening method
A blade sharpening method and apparatus is characterized by sharpening the blade in a single station grinding assembly. The grinding assembly includes two opposed abrading wheels which interlock to...
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6846229 |
Handheld retractable pull-through knife sharpener
A retractable knife sharpener having an ergonomically shaped handle with an internal hollowed portion and an opening at one end thereof in communication with the hollowed portion and a sled...
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6814652 |
Method to sharpen the cutting knife of a knife ring chipper
A method for sharpening the cutting knives of a knife ring chipper, which includes a knife ring and a number of knife units, the units in turn containing knives and holding plates. The knife ring...
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6808441 |
Dental tool sharpener and method of use
A dental tool sharpener is disclosed having a base. A grinding surface is rotatably attached to the base about a fixed axis, the axis of rotation being perpendicular to the base. a positioner is...
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6802763 |
Apparatus for sharpening blades
A sharpening apparatus with substantially rigid sharpening wheels disposed substantially fixedly on a rotatable drive shaft. An edge of a blade inserted in a slot in the apparatus comes into...
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