Class 76/82 - Cutting

Subclass of Class 76 - Metal tools and implements, making
Definition: Miscellaneous devices and machines for sharpening cutters
No. of patents: 93
Last issue date: 12/13/2011

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Number	Title	Issue Date
8074535	Device for treating blades to improve their cutting properties A treatment device for improving the cutting properties of the blade of a non-electric shaving razor. The device has a treatment surface for interacting with the cutting edge of the razor blade, as the blade is put into sliding contact with the treatment surface. Th...	12/13/2011
7374475	Hand-held sharpener device A hand-held sharpener device for sharpening and deburring convergent surface cutting edge implements including an elongated cylindrical body having a central area mounting a plurality of sharpener bit assemblies and opposite end areas providing hand grips for holdin...	05/20/2008
7287445	Apparatus for precision steeling/conditioning of knife edges An apparatus for manually steeling or conditioning the edge of a knife blade comprises a precision angle guide attached to a manual sharpening steel. The angle guide establishes a guiding surface that provides for sustained sliding or rolling contact with the face o...	10/30/2007
7281969	Tool sharpening and compound honing jig A holder, guide, or jig for sharpening tools is disclosed, in which the jig holds and orients a tool to be sharpened to properly align the tool on or against abrasive wheels, discs, or sharpening stones, thereby creating a fine, square, beveled edge on the tool, at ...	10/16/2007
7275461	Magnetic blade sharpening device and method An apparatus and method for sharpening razor blades and the like whereby rectangularly-shaped magnets are placed end-to-end in a rectangular enclosure that snaps on securely over a razor blade during non-use times in such a manner that the magnetic field generated b...	10/02/2007
7229345	Knife sharpener The invention concerns a knife sharpener for household knives or the like. In order to design a knife sharpener, which, one the one hand, can be used for sharpening and sits solidly on a surface without it having to be held, and which, on the other hand, is producib...	06/12/2007
7186169	Angle positioning tool and hand-scaler grinding device using same The object of the present invention is to provide an angle setting tool for setting the blade section of a hand scaler at a predetermined angle during sharpening of the scaler, and a hand scaler sharpening device which has a relatively simple structure, is easy to o...	03/06/2007
7172500	Knife sharpener A knife sharpener has a housing, a base, a sharpening device and an adjustable device. The housing has a case, a cavity and a slot. The cavity is defined in the case and the slot is defined in the case and communicates with the cavity. The base is mounted on the hou...	02/06/2007
7153201	Oval sharpening rod having interrupted diamond coated surface and process of manufacturing same An oval rod sharpener having an interrupted diamond abrasive surface having plurality of holes forming wells for collecting filings during sharpening. The abrasive surface is formed by multiple layers of micron sized diamonds, such as monocrystalline diamonds. A pla...	12/26/2006
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 the blade edges with a moving rubber or polymeric compliant belt that...	11/14/2006
7121935	Blade sharpener A blade sharpener (10) comprises sharpening strip providing carriers (12) and (14) each including an obliquely extending linear sharpening strip providing rod (16) and carrier movement non-interference guiding means in the form of a slot ...	10/17/2006
7107684	Blade sharpening for electric shavers Apparatus, kits, and methods for sharpening electric shavers having rotary and reciprocating-type cutting members are disclosed. A sharpening apparatus in accordance with an exemplary embodiment of the present invention may include an applicator tray or other applic...	09/19/2006
7066796	Device for manually sharpening knives and other blades, comprising interchangeably mounted hard metal plates A device for the manual sharpening of knives and other blades having exchangeably held carbide plates. The exchangeable carbide plates of manual sharpening devices are inserted or pushed into recesses or into a reception of the device body and must be fixed t...	06/27/2006
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, and anywhere in between. The knife is ground utilizing a novel concept ...	06/27/2006
7052385	Self-aligning blade angle guide A device for use in the manual sharpening of arrow broadheads, razor blades and the like includes a unique symmetrical clamp and axle assembly having interchangeable, matched pairs of special purpose jaw members for gripping blades of differing configurations. When ...	05/30/2006
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 chemical-mechanical polishing composition comprising particles of an abrasive, and a l...	05/02/2006
7001259	Blade grinder for gardening cutting tool A blade grinder includes a main body having a first end formed with a blade seat, an oil impregnated member mounted on a second end of the main body, and a grinding member mounted on the blade seat. Thus, one of the blades of the gardening cutting tool is rested on ...	02/21/2006
6971949	Sharpening guide for dental tools A sharpening guide for a dental tool is provided, with the dental tool having a handle, a working portion, and a shank extending between the handle and the working portion. The sharpening guide includes a guide body and at least one opening formed in the guide body ...	12/06/2005
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 compliant belt that is motor driven. The disposable razor blade handl...	11/29/2005
6868572	Screwdriving and countersinking bit The invention provides a bit (10) for use with a rotatable tool, said bit including: a shaft (12) having a rearward end adapted to be held by a chuck of the rotatable tool, and a forward end (18) having cutting tips formed thereon; a reaming hea...	03/22/2005
6817269	Edge sharpener An edge sharpener for various implements is provided. The edge sharpener includes a sharpener body having a pair of sharpening elements secured to a sharpener body in a fixed angular relationship. The sharpening elements are moveable along this fixed angular relatio...	11/16/2004
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 contact with a sharpening surface on a sharpening wheel. A sliding block as...	10/12/2004
6769327	Knife and blade sharpener A knife sharpener (10) has pairs of overlapping, resiliently flexible fingers or strips (21-23, 31-33) to form opposed sharpening faces (27-29, 37-39) operable to engage at least one cutting edge (101) on a knife blade (102). The s...	08/03/2004
6726551	Manual knife sharpener with angle control A manual knife sharpener is provided with angle control structure. The structure includes a guide member having a guide surface which forms an angle with the abrasive surface of the sharpening member. When the blade is inserted into the space between the abrasive su...	04/27/2004
6679757	Shaping tool and method for shaping curved surfaces on workpieces A tool for shaping curved surfaces on a workpiece, in particular upper curved surfaces of the forward and aft rails of a gas turbine engine shroud section. The shaping tool includes a base member for securing the workpiece and a shaping member movable rel...	01/20/2004
6676500	Drill bit sharpener A drill bit sharpener includes a motor assembly and a drill bit grinding assembly. The motor assembly has a motor with a drive shaft to drive the drill bit grinding assembly, which includes a driven assembly, a sharpener housing, a grinding wheel assembly...	01/13/2004
6634257	Sharpening method and apparatus for rotary knives A sharpening apparatus for a rotary knife blade includes a sharpening material support base and at least one lower sharpening device such as a metal pin mounted on the sharpening material support base. At least one upper sharpening device is mounted on th...	10/21/2003
6626066	Folding sharpener tool A foldable hand sharpening tool is disclosed, having an elongate body/handle with a first sharpening member pivotally mounted at one end which folds into the body when not used, and at the other end having a "V" shaped sharpening slot formed by opposing s...	09/30/2003
6361408	Method and apparatus for finishing surfaces A method is described for surface finishing complex and simple surface shapes by abrasion of selected zones of surface, leaving contiguous zones unfinished....	03/26/2002
6163965	Spherical cutter and cutter holder arrangement A spherical cutter and cutter holder arrangement, which includes a cutter holder and a spherical cutter mounted in a longitudinal mounting slot at the cutter holder and fixed thereto by a screw, wherein the spherical cutter has a first cutter layer and a ...	12/26/2000
6161453	Saw chain sharpener for a chain saw A saw chain sharpener for a chain saw and a chain saw having a sharpener in which the bottom surfaces of the cutting teeth of a conventional bottom sharpened saw chain are conveniently sharpened automatically by running the chain under power through the s...	12/19/2000
6151991	Terra cotta sharpening block A terra cotta sharpening block for sharpening edged objects such as knives, tools, and scissors. The terra cotta sharpening block includes a block with first and second faces, a pair of ends, and a pair of sides extending between the ends of the block. Th...	11/28/2000
6146257	Manually-operated sharpening apparatus A manually-operated sharpening apparatus includes a sharpening member for sharpening a sharpened member such as a dental instrument, a guide member for guiding the sharpened member so as to be movable therealong, and a positioning-assist element for permi...	11/14/2000
6119554	Device for sharpening blades A device for sharpening blades has a hard metal cutting blade (7) per se known in the art, secured to an ergonomically shaped handle (1). A bead (6) is provided to reduce the risk of accidents....	09/19/2000
6117002	Blade sharpener A blade sharpener having a sharpening mechanism that functions to sharpen a blade engaging the mechanism and being moved longitudinally relative to that mechanism. The sharpening mechanism is located within a hollow housing or scabbard for containing the ...	09/12/2000
6101898	Knife and scissors sharpener A knife and scissors sharpener with a guard for the former. The scissors sharpener has an opening for each blade of the scissors with a cylindrical sharpening stone extending across them. The stone may rotate about an axis perpendicular to the openings to...	08/15/2000
6074293	Apparatus for finishing surfaces Apparatus is described for surface finishing complex and simple surface shapes by abrasion of select zones of the surface, leaving contiguous zones unfinished. The apparatus is simple in construction and required little in training for operation. The appa...	06/13/2000
6067880	Deburring device A device for removing burrs created on the lateral edges of ice skate blades during sharpening is provided. The device consists includes cutting insert of extremely hard alloy having at least one angled cutting surface. The cutting insert is secured in a ...	05/30/2000
6062951	Method of making a surgical instrument cutting jaw A method includes the steps of providing fixed and movable cutting jaws for a surgical instrument, the fixed jaw having an opening in which the movable jaw is receivable; providing a fixture; placing the fixed jaw on the fixture; supporting the movable ja...	05/16/2000
6062970	Stropping device of blade for safety razors A stropping device of a blade for safety razors, capable of allowing an existing razor blade to be repeatedly used, is disclosed. The stropping device consists of a main body and an adhesive sheet attached on the back surface of the main body. A guide gro...	05/16/2000

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Class 76/82 - Cutting