Abstract: For improving a drill, in particular a spiral drill, comprising a base body extending substantially longitudinally in a direction axial to a drill axis, said base body comprising a drilling portion, wherein a radially inward core region in relation to the drill axis and a radially outer region are provided in the base body in the drilling portion, and the drilling portion comprises a plurality of spiral-shaped recesses in the outer region, and arranged between each two spiral-shaped recesses is a wall part, it is proposed that the drill comprises at least four main cutting edges, in particular exactly four main cutting edge and/or the drill comprises at least three central cutting edge portions.

Abstract: A knife sharpening device includes a main housing, a first knife sharpening blade having two first sharpening edges, a second knife sharpening blade having two second longitudinal sharpening edges, and a blade replacement arrangement. The blade replacement arrangement includes a first supporting device movably and inclinedly supported by the main housing, a first knife sharpening blade detachably supported on the first supporting device to expose one of the first sharpening edges out of the first supporting device, a second supporting device movably and inclinedly supported by the main housing to and a second knife sharpening blade being detachably supported on the second supporting device to expose one of the second longitudinal sharpening edges out of the second supporting device.

Abstract: A blade sharpening device comprises a clamp for holding a blade in a fixed position relative to the device, an elongate slide member having a lower end adapted for sliding movement on a flat surface and an elongate support arm having a first end mechanically connected to the slide member. The elongate support arm extends at a fixed angle relative to the slide member and has a second end with the clamp provided thereon.

Abstract: The lockable knife block comprises a knife block and one or more knives. The knife block is a mechanical structure that stores one or more knives. The lockable knife block is a locking structure. The locking knife block comprises an interlock mechanism that inhibits an individual from removing an individual knife selected from the one or more knives from the knife block without releasing the interlock mechanism. The interlock mechanism is a lockable structure.

Abstract: An apparatus for sharpening and/or beveling of either a ski or snowboard side edge or base edge is provided. It comprises a tool support bar, a wear plate, a shim and an indexing pad that are adapted to be handheld by a technician using the apparatus. Each bar includes two tool support surfaces and may be detached and reattached to the wear plate. The shim and indexing pad are also attachable to the apparatus at a plurality of locations that provide multiple angular orientations for a sharpening tool used with the apparatus.

Abstract: A shaving demonstration apparatus having a rotatable support surface. A drive unit is operatively connected to the rotatable support surface. A fixture is spaced apart from the rotatable support surface. A first shaving razor has a first handle mounted to the fixture. A first blade cartridge unit is mounted to an end of the first handle. The first blade cartridge unit contacts the rotatable support surface.

Abstract: An automated knife sharpening and cleaning system is provided. The system comprises a container body that is configured to hold a utensil holder that is configured to releasably couple to the container body, the utensil holder configured to hold a utensil. The system further includes a drive assembly and a gripper assembly, the gripper assembly being coupled to the drive assembly and the drive assembly being configured to move the gripper assembly within the three-dimensional coordinate space of the container body. The system further includes a grinding assembly that is configured to sharpen the utensil. During operation of the system, the gripper assembly is configured to grip the utensil and remove the utensil from the utensil holder, hold the utensil within the grinding assembly during sharpening, and replace and release the utensil in the utensil holder once the sharpening is complete. Moreover, the system may clean and sanitize the utensil.

Abstract: A multi-rod hand-held sharpener includes a handle with an outer grip surface for a hand of a user, a first abrasive rod having a first outer abrasive surface with a first abrasiveness level, and a second abrasive rod having a second outer abrasive surface with a second abrasiveness level different from the first abrasiveness level. At least one guide surface extends toward the first sharpening surface at a selected guide angle non-orthogonal to the first sharpening surface. The user contactingly engages a side of the tool against the guide surface and a cutting edge of the tool against the first abrasive surface, and then advances the side of the tool away from the guide surface and the cutting edge against the first abrasive surface while maintaining the tool at the selected guide angle. An optional second guide adjacent the second abrasive surface at a different angle facilitates micro-beveling.

Abstract: A blade sharpening system using the interior surface of a grinding wheel against which a blade is drawn along its entire length for sharpening. The sharpening system includes a blade holding configuration having multiple hinged arms. A cam operating between two of the hinged arms serves to alter the angle of incidence between the blade and the grinding wheel as the blade is drawn across the grinding wheel. The result is that a wide variety of different blade configurations can be easily accommodated by the sharpening system.

Abstract: A knife sheath and sharpener includes a body having opposing first and second sidewalls, a closed bottom, a closed tip portion, an open end portion and an open top portion interconnected to define a knife receiving cavity. A pair of opposing first and second sharpening elements are disposed within the knife receiving cavity. The first sharpening element is pivotally attached to the first sidewall and the second sharpening element is pivotally attached to the second sidewall at a location longitudinally offset from the first sharpening element.

Abstract: The kitchen knife with the sharpener includes: a cutout recess formed in an end of the handle; a locking space extending from the cutout recess; and a sharpener, including: a locking part removably received in the locking space; a sharpener body extending from the locking part; a whetting groove transversely formed in the sharpener body; plate-shaped whetstones inclinedly installed on opposing sidewalls of the whetting groove so that the whetstones form a V-shaped arrangement; and a rubber cushion placed below a rear surface of a whetstone.

Abstract: An adjustable manual abrasive sharpener having a pair of sharpening slots formed in a frame with opposing abrasive arms being pivotally mounted in each of the sharpening slots. A rod is mounted on the frame for rotatable motion and for linear motion long its axis of rotation from a position at which the rod is locked against rotation to a depressed position whereby the rod may be rotated. The bottom end portion of the rod includes a pinion gear which engages a pair of gear racks which are mounted for movement laterally relative to the axis of rotation of the rod. The pair of gear racks respectively engage slots formed on the bottom of the abrasive arms in each sharpening slot. Rotation of the rod causes movement of the gear racks to adjust each pair of abrasive arms with respect to each other to vary the sharpening angle of the abrasive elements.

Abstract: The present invention is a sharpening tool and sharpening system for sharpening snowmobile carbide wear rails and studs and a kit of parts that includes the sharpening tool and a steering member having a carbide wear rail. The sharpening tool is attachable to the chuck of a hand held drill and includes a shaft attachable to the chuck of the hand held drill and cylindrical head affixed to the shaft. The cylindrical head includes a rail groove surfaced in an abrasive material for sharpening wear rails.

Abstract: Truing devices constructed and arranged for truing one or more disposable metallic blades and methods for the manufacture and use of same are disclosed herein.

Abstract: A combination sharpener assembly which is particularly useful for fishermen, includes an electrically powered knife sharpener. A manually operated scissors sharpener is mounted in the recess of the housing for the knife sharpener. A hook sharpener is detachably mounted in a compartment in the housing of the knife sharpener. The motor for the knife sharpener is mounted in a sealed inner housing and can be selectively operated under either direct current or alternating current.

Abstract: 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. The treatment surface has a plurality of resilient honing projections that are compressed as the blade is moved in sliding contact with the surface.

Abstract: A blade sharpening system using the interior surface of a grinding wheel against which a blade is drawn along its entire length for sharpening. The sharpening system includes a blade holding configuration having multiple hinged arms. A cam operating between two of the hinged arms serves to alter the angle of incidence between the blade and the grinding wheel as the blade is drawn across the grinding wheel. The result is that a wide variety of different blade configurations can be easily accommodated by the sharpening system.

Abstract: A housing including a honing device, a blade sharpener, a blade restraining mechanism, and a biased blade guide being received in a scabbard or a knife block. Wherein a knife is honed and sharpened upon insertion into the housing, or upon withdrawal from the housing, or both, and wherein the blade is retained within the housing after insertion therein.

Abstract: A knife edge enhancing apparatus includes a support having a support surface and knife blade clamping structure mounted to the support and located above the support surface. An object having a knife edge modifying surface which could be abrasive or non-abrasive is mounted to a holder which is freely slidable on the support surface so that the object surface can be manually moved into contact with a knife edge facet. At least one of the clamping structure and the object surface is angularly adjustable to control the angle of contact of the object surface with the knife edge facet.

Abstract: A conditioning and cutting apparatus for a blade is provided. The apparatus may include a cutting board and a conditioning device. The cutting board may include a top cutting surface, a bottom surface disposed in opposition to the top cutting surface, and a peripheral wall extending between the top cutting surface and the bottom surface and defining the perimeter of the cutting board. The cutting board may define a channel therein. The channel may define a recess and an opening thereto. The peripheral wall may define the opening of the channel. The conditioning device may be disposed in the channel. The conditioning device may be configured to interact with the blade as the blade is drawn through the channel.

Abstract: A knife sharpening device of a circular knife contains a wheel member including a sharpening portion disposed therein, the sharpening portion including an abrasive piece mounted therearound, an annular loop with a hole mounted on a central portion thereof, and a peripheral wheel formed therearound; a retaining member connected with one side of the wheel member and including a first rib disposed thereon, an abutting post with a first limiting block extending therefrom, the first limiting block including an insertion extending therefrom, the abutting post including a biasing projection proximate to the abutting post; a connecting member connected on another side of the wheel member and including a second rib disposed thereon, a second limiting block with an opening and plural locking tabs fixed on a central portion of an inner side thereof, the connecting member including a contacting peg arranged adjacent to an inner side thereof.

Abstract: The invention relates to a blade sharpening and storing device. The device includes a hollow housing for receiving and storing a blade and an access opening at an end of the housing through which the blade can be moved longitudinally to be inserted into or withdrawn from the housing. A blade sharpener is positioned to be engaged by a cutting edge of the blade when the blade is inserted into or withdrawn from the housing and which is responsive to movement of the blade relative to the housing to sharpen the cutting edge. A blade honing device positioned to be engaged by the cutting edge of the blade when the blade is inserted into or withdrawn from the housing and which is responsive to movement of the blade relative to the housing to hone the cutting edge. In another aspect, the invention relates to a blade storing device and blade combination. The blade includes opposite substantially parallel sides which meet at a cutting edge.

Abstract: 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. The treatment surface has a plurality of resilient honing projections that are compressed as the blade is moved in sliding contact with the surface.

Abstract: 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. The treatment surface has a plurality of resilient honing projections that are compressed as the blade is moved in sliding contact with the surface.

Abstract: A knife sharpening device of a circular knife contains a wheel member including a sharpening portion disposed therein, the sharpening portion including an abrasive piece mounted therearound, an annular loop with a hole mounted on a central portion thereof, and a peripheral wheel formed therearound; a retaining member connected with one side of the wheel member and including a first rib disposed thereon, an abutting post with a first limiting block extending therefrom, the first limiting block including an insertion extending therefrom, the abutting post including a biasing projection proximate to the abutting post; a connecting member connected on another side of the wheel member and including a second rib disposed thereon, a second limiting block with an opening and plural locking tabs fixed on a central portion of an inner side thereof, the connecting member including a contacting peg arranged adjacent to an inner side thereof.

Abstract: A saw blade sharpening assembly includes a sharpening disk, a blade support panel disposed generally adjacent to the sharpening disk and a generally sloped blade support base carried by the blade support panel.

Abstract: An apparatus useful for sharpening blades includes a blade support, a sharpener guide mounted to the blade support, and a sharpener mount. The sharpener guide includes an elongated guide member defining a sharpening axis extending substantially parallel to a blade axis defined by the blade support. The sharpener mount includes a pivot connector coupled to and complementally configured with the elongated guide member for enabling pivotal movement of the sharpener mount about the sharpening axis and translational movement along the elongated guide member. The sharpener mount may be coupled to a rotary grinder having a grinding wheel, such that the sharpener mount and the grinder may pivot to provide a desired sharpening angle on the blade and move the grinder along the blade while the blade remains in place on the blade support.

Abstract: A wiskar for sharpening cutting teeth of a chain provided on a chain bar of a chain saw. A housing is removably attached to the chain bar and includes a recess to receive the wiskar therein. The wiskar includes a first member configured to be operationally engaged by the recess of the housing; and a second member configured to frictionally engage a bottom surface of the cutting teeth. The second member includes a body portion intermediate the opposing ends, wherein opposing ends of the second member each have at least one lobe defined therein. Abrasives are uniformly impregnated throughout the first and second member to sharpen the bottom surface of the cutting teeth. At least the second member is manufactured from a pliable material that erodes due to friction caused by the cutting teeth engaging the lobes of the second member.

Abstract: A sharpening tool includes a handle, a first sharpening unit mounted on a first end of the handle, and a second sharpening unit mounted on a second end of the handle. The first sharpening unit includes a fixed blade mounted on the handle, a first threaded post rotatably mounted on the handle, a first slide having a first toothed portion meshing with the first threaded post, and a movable blade fixed on the first slide. The second sharpening unit includes a second threaded post rotatably mounted on the handle, a second slide having a second toothed portion meshing with the second threaded post, and a flat blade fixed on the second slide.

Abstract: A knife sharpening bar includes a handle that carries a support bar. A flexible tube is tightly fit over the support bar. A hollow ceramic bar is then fit over the flexible tube with an inside surface of the ceramic bar tightly engaging the flexible tube so that the flexible tube provides a cushioning support between the support bar and the ceramic bar, which protects the ceramic bar from directly bearing any external impact applied to the knife sharpening bar. An internally-threaded cap engages an externally-threaded free end of the support bar and abuts against the ceramic bar to thereby secure the ceramic bar in position on the support bar. Collars or other buffering members can be positioned at opposite ends of the ceramic bar.

Abstract: Apparatus for sharpening and or honing a multi-bladed razor cartridge including a sharpening member, a housing to secure the sharpening member. An aloe Vera or soap solution dispenser provides a lubricant to the sharpening member to lubricate the razor and a housing to limit the travel of the razor on the sharpening member. The sharpening and or honing member is made of a mirrored plate glass secured in a channel within the housing.

Abstract: A knife sharpener system for efficiently and quickly sharpening a blade of a knife. The knife sharpener system generally includes a support structure, a sharpening unit including a retaining portion, wherein the sharpening unit extends from the support structure, at least one sharpening member extending from the sharpening unit and at least one magnet positioned within the sharpening unit, wherein the retaining portion is positioned between the sharpening member and the magnet and wherein a metal residue of a blade is magnetically attracted to the retaining portion via the magnet.

Abstract: Herein described is a quick assembling disassembling and movement mechanism for a component of a food slicing machine (10) of the type comprising a framework (12) bearing a rotating blade (14), provided with a blade-cover (16) which extends for at least a part of the circumferential edge of the blade (14), a moveable flap (18) and guide means (20) for a carriage (22). The carriage (22) is made up of a product-bearing plate (24), a support arm (26), constrained in a sliding manner against the guide means (20), and a cover-plate (28) sliding over the product-bearing plate (24) in an orthogonal direction with respect to the moveable flap (18).

Abstract: 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 corresponding facet to create the knife edge. At least the first of the blade faces has a lower distinct planar or concave section adjacent the edge facet with the lower planar or concave section of the face being set at an angle to the center line of the blade thickness that is different from the angle of the adjoining upper section of the same blade face located adjacent to the back of the blade. The sharpener includes a sharpening member such as one having an abrasive coated surface. The sharpener also includes a planar angle knife guide surface of a knife guide which is designed for intimate sliding and sustaining contact with the second face of the blade in order to position an edge facet on the first of the faces into precise angular relation with the sharpening surface.

Abstract: A tool sharpening assembly (100) suitable for sharpening cutting tools (140,350,366,546,562). In some embodiments, a wedge-shaped port is formed between a rotational first abrasive surface (160,262) and a stationary second abrasive surface (162,264) to sharpen a distal cutting edge (146) of a cutting tool (140,230,546). In other embodiments, a cooling mechanism (136,326,330,334,338) actively draws heat generated during a sharpening operation from a tool (140) and through a tool support structure (170,234,328,332) contactingly supporting the tool, in further embodiments, a rotatable abrasive slotted disc (364) comprises at least one inspection aperture (372) formed from an interior sidewall (390) with upper and lower leading and trailing edges (396,398,400,402) of non-uniform separation distance. In other embodiments, a cylindrical drum abrasive member (572) is provided with an associated stationary support plate (574).

Abstract: The invention relates to a method for grinding a cutting tool, especially a knife. The aim of the invention is to provide a method which allows configuration of individual leaf or blade geometries at comparatively low costs. For this purpose, the cutting tool is contacted with the effective surface of a grinding device, and the cutting tool and the grinding device can be displaced in relation to each other by at least three degrees of freedom.

Abstract: A knife storage and sharpening apparatus including a knife block having a plurality of elongate recesses each for receipt of a different knife and having a recess for receipt of a knife sharpening steel. The apparatus further includes another form of knife sharpening means specifically adapted for receipt in the recess for receipt of the steel. The knife sharpening means can be used to sharpen a knife while it is mounted in the sharpening steel recess. If the knife user prefers to use a sharpening steel, the knife sharpening means may be removed from the knife block to provide storage for the sharpening steel.

Abstract: 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 portion is flat. A slot is formed in the rod. Substantially all of the outer surfaces include layers of the rod have an abrasive material. The rod is carried in a carrying case for transport and storage in a locked relationship and being capable of being released and withdrawn for sharpening with carrying case serving as a holder.

Abstract: 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 holding and moving the sharpener device across a cutting edge to be sharpened. One of the sharpener bit assemblies includes two associated sharpening bits for sharpening blades having two converging cutter surfaces and a second sharpener bit assembly includes a sharpening bit and a dummy bit for sharpening blades having only one cutting surface. The sharpener bits and the dummy bit are held and clamped in bit receiving cavities in mating sections of the sharpener body.

Abstract: The invention relates to a device (1) for sharpening the blade of a manual cuting tool, in particular a knife. The inventive device comprises a support (2) provided with a cutout (4). Identical sharpening levers are arranged on each side of the cutout in front and in staggering manner with respect to each other and provided with a curved arm (13) having a rectilinear end edge (14) and another arm (16) forming means for returning in a position by gravity. Each lever (11) is pivotally mounted in the jointing area (15) of the arms (13, 16) around an geometrical axis which is generally perpendicular to a longitudinal direction (A-A?) of the cutout and a slot (5). Said device is particularly adapter to the agriculture and food industry.

Abstract: A hand-held sharpening/whetting tool has a body including a handle blade guide and finger/hand guard. The tool body has first and second end sections and an open-ring mid section. The end sections are provided with diverse sharpening/whetting elements for use in a first use mode and a third sharpening/whetting element is positioned on the finger/hand guard within the open-ring mid section for use in a second use mode.

Abstract: 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 by the magnets acts upon the cutting edge of the blade so as to maintain the sharpness of the cutting edge.

Abstract: 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 producible with little economic cost regarding production and assembly, the invention proposes a knife sharpener with a housing, which has a surface designed to be a base, and at least one longitudinal, cylindrical grinding element made from ceramics, at least part of the surface of which is arranged on the surface of the housing, whereas the base is designed at a right angle to a longitudinal line of the grinding element and the grinding element is positioned in the middle in relation to a projection of the base.

Abstract: 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 housing and has a base board and two side walls formed on the base board. The sharpening device is movable mounted on the base and is received inside the housing. The sharpening device has two sharpening arms with sharpening rods. The adjustable device is mounted on the sharpening device mounted between the two sharpening arms. When the knife sharpener is used, the adjustable device is rotated to change the cross-position of the sharpening device. Therefore, a knife may be sharpened at a different site on the sharpening rods for prolonging the life span of the knife sharpener.

Abstract: 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 defining formation formed by facing rail pairs (18), (20) facing one another across a slot (22). The rail pairs (18) and (20) form part of a carrier support frame (24) to which the carriers (12), (14) are mounted to be displaced in diametrically opposed directions and along the spacings formed between the rails of the rail pairs (18), (20). A crossover point (28) is defined between the rods (16) within which the cutting edge of the blade of a knife is in an abrasion fashion moved during a sharpening action. The crossover point (28) is constrained to move along a linear sharpening path extending along the slot (22) during sharpener use.

Abstract: 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 applicator means, and an abrasive material configured to abrade and sharpen the cutting surfaces of the electric shaver, when actuated.

Abstract: 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 whereby two aspects of the blade are held against two adjustably parallel surfaces simultaneously to maintain the grinding angle. Because the knife blade is unencumbered during the sharpening process, extremely acute angles can be incorporated into the clearance angle behind the edge. The device is free-standing, portable, sturdily built, accurate, and simple to use.

Abstract: 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 liquid carrier, wherein the abrasive is suspended in the liquid carrier, and abrading at least a portion of the cutting edge to polish the cutting edge. The invention further provides a cutting instrument having a highly uniform edge.

Abstract: 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.

Abstract: 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 head (14) including a body having a bore (16) adapted to receive the shaft therethrough in a sliding fit, the body having a plurality of cutting blades (26) formed on at least one peripheral surface thereof; the bore and/or the shaft having formations thereon such that when the rearing head has the shaft operatively located in the bore the reaming head is rotationally locked into the shaft; the reaming head and the shaft being separable from each other to allow either component to be replaced independently of the other.