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| Number | Title | Issue Date |
| 7488241 | Precision control of sharpening angles A modified truncated cone-shaped disk is molded onto a plastic hub which is mounted on a motor driven shaft. The hub has an axial bore of a size to fit with very close clearance on the shaft while still permitting the disk to freely slide against a low spring force.... | 02/10/2009 |
| 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 is capable of positioning the blade in a first fixed state and a seco... | 02/12/2008 |
| 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 |
| 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 |
| 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 predetermined angle relative to the longitudinal axis ... | 05/22/2007 |
| 7198558 | Knife blade dressing apparatus A dressing device (10,90) for sharpening or conditioning of a blade (18) or the like includes one or more disk pairs (36–40,108), each having a pair of disks (52,54,110,112) respectively presenting a series of circumferentially spaced, ... | 04/03/2007 |
| 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 bedknife located against surfaces in both sets, and electromagneticall... | 02/20/2007 |
| 7153200 | Blade grinding tool A blade grinding tool includes a main base, a sucker mounted on the main base and attached to a surface, and a grinding unit mounted on the main base for grinding a blade of a cutting tool. Thus, the blade grinding tool is attached to a surface, so that a user needs... | 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 |
| 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 sharpener is positioned in its standby, or non-sharpening state. ... | 11/14/2006 |
| 7118466 | Scissor sharpening machine The scissor sharpening machine includes a honing disc with a curved blade guide and a blade clamp assembly which slides axially along the blade guide. The curvature of the blade guide corresponds to the conventional curvature along the lengths of the blades of a pai... | 10/10/2006 |
| 7115027 | Grinding tool for sharpening work pieces A grinding tool for sharpening tools is provided comprising an oscillatory drive the output shaft of which is driven oscillatingly about its longitudinal axis. The grinding tool comprises a holder for mounting a working part which is configured as a grinding plate h... | 10/03/2006 |
| 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, which is tightened to the platen by a knob. The disc is color coded t... | 09/26/2006 |
| 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 |
| 7011568 | Grinder with adjustable tool rest A grinding tool with a toll rest includes an adjustment mechanism to adjust the position of the tool rest responsive to wear of the grinding wheel. ... | 03/14/2006 |
| 7008307 | Apparatus for sharpening a circular blade The present invention relates to an apparatus for sharpening a circular blade. The sharpening apparatus is adapted to be positioned adjacent a power-driven sharpening wheel at an angle. The sharpening apparatus includes an angularly adjustable tool holder for angula... | 03/07/2006 |
| 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 |
| 6875093 | Sharpening device A sharpener includes a motor driven shaft with at least one slidably mounted sharpening assembly consisting of a supporting hub structure mounted by its central bore hole on the shaft. The hub structure supports a symmetrically shaped rotating surface containing an ... | 04/05/2005 |
| 6863600 | Apparatus for precision edge refinement of metallic cutting blades A finishing apparatus modifies the physical structure along the edge of a metal knife blade wherein the edge is formed at the junction of two edge facets presharpened with abrasives. The finishing apparatus consists of at least one precision angular knife guide that... | 03/08/2005 |
| 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 |
| 6722968 | Conversion attachment for bench grinder tool rest An attachment for a bench grinder having at least one grinding surface, a tool rest fastener and a tool rest is described. The attachment includes a tool-receiving plate having a bottom surface and a top surface. The bottom surface is configured to matingly engage t... | 04/20/2004 |
| 6709320 | Width adjustable sharpener A knife sharpener includes a handle and an operation portion in which two grinding members are respectively and pivotably received. An aperture is defined through a top of the operation portion and communicates with the grinding members. Each of the two grinding mem... | 03/23/2004 |
| 6709319 | Sharpener assembly for a food slicer and related method A sharpener assembly for a food slicer includes a rotatable frame with a sharpening member and a truing member operatively connected for rotation with the frame. The frame is mounted on a food slicer to place the sharpening member and truing member on opposed sides ... | 03/23/2004 |
| 6676495 | Power sharpening system A powered sharpening system utilizing a turntable to rotate reversible, interchangeable platters carrying different grades of abrasive for grinding, polishing and lapping woodworking and other edge tools to be sharpened that are secured in a tool holder t... | 01/13/2004 |
| 6506106 | Automated razor sharpening device Apparatus for sharpening a razor blade with a motor actuated sharpening member mounted in a housing with a slot for receiving the razor head and a cradle assembly for engaging the distal end of the razor handle to hold the razor head in the slot. A carria... | 01/14/2003 |
| 6368196 | Blade sharpener for curved and straight edge blades A blade sharpener comprises a work surface consisting of a single support line. A grinding wheel defines a plane that contains the support line. The grinding wheel is swingable in the grinding wheel plane to a selected position relative to the support lin... | 04/09/2002 |
| 6364750 | Blade sharpener for curved and straight edge blades A blade sharpener comprises a work surface consisting of a single support line. A grinding wheel defines a plane that contains the support line. The grinding wheel is swingable in the grinding wheel plane to a selected position relative to the support lin... | 04/02/2002 |
| 6261161 | Sharpener assembly for a food slicer and related method A sharpener assembly for a food slicer includes a rotatable frame with a sharpening member and a truing member operatively connected for rotation with the frame. The frame is mounted on a food slicer to place the sharpening member and truing member on opp... | 07/17/2001 |
| 6257967 | Sharpener for veneer knife A sharpening tool for a veneer knife has a primary stone and a secondary stone driven by a power head. The secondary stone is inclined at an angle to the primary stone corresponding to the angle of the defined faces of the veneer knife cutting edge. Outri... | 07/10/2001 |
| 6224468 | Apparatus and method for sharpening a disc blade An apparatus and method for sharpening a disc blade includes a grinding wheel mounted on a housing. The housing is mounted on a drive shaft so that the housing rotates with the drive shaft but can move axially relative to the drive shaft. A transversely e... | 05/01/2001 |
| 6190244 | Sharpening arrangement A sharpener assembly for a rotating circular knife blade on a food product slicing machine has an elongate frame mounted at one of its ends for pivotal movement about an axis being substantially in the plane of the knife blade. The elongate frame has moun... | 02/20/2001 |
| 6113476 | Versatile ultrahone sharpener A versatile ultrahoned sharpener includes a stop assembly which contains an inner hardened structure such as being made from metal or ceramic to serve as a positive limiting stop if the knife being sharpened cuts excessively into the plastic stop assembly... | 09/05/2000 |
| 6086465 | Device for post-machining a steel edge of a ski There is described an apparatus for finishing a steel edge (14) of a ski (15) by means of a pot-shaped grinding wheel (1) driven by a motor (2) with an axis of rotation extending transverse to the feed direction (8). To create advantageous constructional ... | 07/11/2000 |
| 6036588 | Knife ring [chip] cutter The invention concerns a device for sharpening of knives, which are mounted in the knife ring of a chip cutter and whose cutting edges run essentially parallel to the knife ring axis. Several grinding tools can be run intermittently and simultaneously in ... | 03/14/2000 |
| 6019023 | Cutting machine using a rotary wheel for cutting a flexible material consisting of a single sheet or a small mat of sheets, and method for adjusting said machine The invention relates to a cutting machine for cutting a flexible material by a cutting wheel rotated by a motor. The cutting wheel and the motor are carried by a cutting head mounted to move horizontally along two orthogonal axes and to rotate about a ve... | 02/01/2000 |
| 6012971 | Sharpening apparatus An abrasive material contains abrasive particles in the range of 50 to 80% by weight in an olefinic thermalplastic resin system which is based on ethylene copolymer. The material may be incorporated on a substrate structure to be used as a stropping or ho... | 01/11/2000 |
| 5941763 | Fixture and device for controlled scissor sharpening A fixture for controllably holding a blade and particularly a scissor or scissor element for precise sharpening and shaping including hollow grind and clamshell (convex) sharpening. The fixture comprises an articulable holding arm with at least two movabl... | 08/24/1999 |
| 5934975 | Dental curet and sharpening machine system A dental curet and sharpening machine system has been developed for convenient, accurate, and rapid sharpening of dental curets. Curets comprising a cutting blade, shank, and handle have been designed so that, regardless of the instrument's rake angle, th... | 08/10/1999 |
| 5893792 | 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 bedknife located against surfaces in both sets, and electro... | 04/13/1999 |
| 5810646 | Means for producing relative reciprocatory movement between two members Means for producing reciprocatory movement of a vice carrier (18) across a guideway (17) mounted on a body moulding (11, 16), which partly shrouds a rotatably driven grinding wheel (14), comprise a rack moulding (57) having upper and lower racks (61, 62) ... | 09/22/1998 |
