Abstract: An acute angle blade sharpening apparatus and method for sharpening blades is configured to sharpen the edge and bevel of a blade at the specific acute angles between 21° and 23°, or about 22° and 23°. The apparatus has a base member forming multiple elongated depressions oriented at 22° and 23°. Multiple elongated sharpening members are fixedly mounted in the depressions. The blade is oriented perpendicular to the first side of the base member and drawn against the sharpening members, to engage at the desired 22° and 23° sharpening angles. A leveling instrument attaches to the blade to verify the blade is oriented at the desired angles. A leveling instrument cavity stores the leveling instrument and fastener. Springs retain the sharpening members in the cavity of the base member when not in use. A clamp fastens the base member to a mounting surface for enhanced stability.

Abstract: Apparatus and method for sharpening a cutting tool, such as a knife. A sharpener includes a first support member, a second support member and a hinge assembly. The first support member supports a first abrasive surface and has at least a first guide at a selected end of the first abrasive surface. The second support member supports a second abrasive surface and has at least a second guide at a selected end of the second abrasive surface. A hinge assembly couples the first and second support member to facilitate movement of the second support member relative to the first support member between a closed position and an open position. In the closed position, the first guide is in facing relation to the second guide and the first abrasive surface is in facing relation to the second abrasive surface.

Abstract: A sharpening apparatus includes a base having a top surface with a channel or mounting rail. A clamping assembly and at least one angle adjustment assembly are releasably securable to base using the rail or channel. When installed, the clamping assembly includes comprising a pair of jaws extending substantially perpendicularly upward from the top surface in opposed alignment and distal ends adjustably spaced to grip a cutting implement. The angle adjustment assembly has a bracket and a rod receptacle pivotably attached to the bracket. A longitudinal guide rod has an end portion constructed to be releasably secured to the rod receptacle. The sharpening apparatus is constructed to be reversibly assembled with the clamping assembly and the at least one angle adjustment assembly secured to the mounting rail with the angle adjustment assembly adjustably spaced from the clamping assembly, and with the first rod end portion secured to the rod receptacle.

Abstract: An angle reference apparatus for sharpening a blade on a sharpening surface of a sharpening tool comprises at least one angle guide having a guide surface and a bottom surface, wherein the guide surface has a predetermined angle between about 0 degrees to about 89 degrees relative to the bottom surface; and at least one base; wherein the at least one angle guide can be disposed on the at least one base; wherein the base can be disposed on the sharpening surface or alternatively the base can be disposed on a surface adjacent to the sharpening tool; wherein the blade can be placed on the guide surface of the angle guide; wherein the angle reference apparatus is substantially stationary to the sharpening surface when the blade is moved on the sharpening surface.

Abstract: A knife block may include a block body with a recessed portion and a block insert positioned at least partially within the recessed portion. The block insert may include a first knife slot and a second knife slot. The knife block may include a first knife sharpener coupled to the block insert, where the first knife slot is sized such that a first knife is sharpened by the first knife sharpener each time the first knife is removed from the first knife slot, and a second knife sharpener coupled to the block insert, where the second knife slot is sized such that a second knife is sharpened by the second knife sharpener each time the second knife is removed from the second knife slot. The knife block may include a first knife storage slot and a second knife storage slot.

Abstract: A removable and repositionable sharpening tool angle guide for a sharpening tool comprising an angle guide body, and a fastening and detaching means, wherein angle guide body can be attached to or detached from the sharpening tool by the fastening and detaching means, wherein the angle guide body further comprises at least one guide surface, wherein the at least one guide surface of the angle guide body and the sharpening tool forms a degree between about 1 degree to about 89 degrees, and wherein the angle guide body further comprises at least one fastening surface contacted with the sharpening tool.

Abstract: A handheld skate blade sharpening tool that has an automatically indexing, rotating sharpening stone that matches the concaved profile of the skate blade retained within a two-piece body member. Screws hold the two-piece body member together to keep the round sharpening stone sized to match the desired concave profile. The sharpening stone will remove metal to match the shape of the stone each time the sharpener is moved back and forth along the blade. The sharpening stone has gears on each end of the stone that match the gears inside the two-piece body. As the tool is moved along the skate blade, the sharpening stone will incrementally rotate within the body when the direction is changed in the reciprocating motion by the user's back and forth movement.

Abstract: An adapter for a fixture for sharpening dental instruments has an engagement arm for connecting to the fixture and for creating a holding space for different width sharpening stones, a bearing shelf for supporting different width sharpening stones, and a base member for supporting the adapter when connected to the fixture.

Abstract: A knife block has a block body and a plurality of knife storage slots extending into the block body. A first knife sharpener is aligned with a first slot of the plurality of knife storage slots and a second knife sharpener is aligned with a second slot of the plurality of knife storage slots. The first and second knife sharpeners are each configured to contact a blade of a knife stored in the corresponding first and second slots. The knife block can be provided as part of a cutlery set that includes a plurality of knives.

Abstract: A manual sharpener includes at least one pre-sharpening stage having interdigitating comb-like abrasive sharpening structure. The sharpener also includes a finishing stage having a pair of abrasive surfaced truncated conical disks as its sharpening structure. The disks are mounted on a rotatable shaft with the small ends of the disks in contact with each other.

Abstract: Adjustable knife holder adapted to maintain sharpness of a knife blade and method of manufacturing the knife holder. The knife holder comprises a housing defining an interior volume therein and a sharpener disposed in the interior volume for slightly sharpening the knife blade each time the knife blade is inserted into or withdrawn from the holder, thereby obviating a need to periodically resharpen the knife blade. The sharpening component can be conveniently removed and interchanged with another sharpener for maintaining sharpness of various types, styles and sizes of knives.

Abstract: A knife sharpener may include a base, a securing unit and two grinding blades. One end of the base has a suction device and the other end thereof has a connecting hole. A receiving space is formed in the base and a screw hole is formed in the receiving space. The securing unit has a locking hole, a bolt passing through the locking hole to secure the securing unit at the screw hole of the base, and a restricting portion formed toward the direction of the locking hole. Two grinding blades are crossly disposed at the restricting portion of the securing unit, and a sharp portion of the grinding blade passes through the connecting hole, so said two grinding blades are protruding from the base to sharpen a knife between two grinding blades.

Abstract: The grinding surface of a grinding stone is formed from a circular conical surface, a drive device for rotation is installed within a housing. The blade of a cutting tool is ground while the longitudinal direction of the cutting tool is aligned with the direction of a generating line of the grinding surface. When grinding the blade, the cutting tool can be aligned with the direction of the generating line of the grinding surface and the blade can be brought in contact with the grinding surface without the handle of the cutting tool and the hand that holds the cutting tool being interfered with the grinder. This is achieved irrespective of in which one of the directions of lines the tip of the blade faces, the lines being obtained by extending the generating line of the grinding surface from both ends of the generating line.

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 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: A knife sharpener having an angled bolster for providing predetermined sharpening angles with respect to the sharpening surface is provided. The angled bolster of the knife sharpener preferably includes two different angled surfaces for establishing at least two different predetermined sharpening angles for a cutting implement to be sharpened. The angled bolster is configured to set up the knife sharpening angle at predetermined angles with respect to the sharpening surface.

Abstract: Apparatus and method for sharpening a tool. In accordance with some embodiments, a selected side surface of the tool is placed in contacting engagement against an upper reverse sharpening guide surface that faces an abrasive surface extending along a first plane. The upper reverse sharpening guide surface is aligned along a second plane that intersects the first plane at an acute angle. A tool cutting edge contactingly engages a non-abrasive support surface disposed between the upper reverse sharpening guide surface and the abrasive surface to establish a plunge depth of the tool prior to contact with the abrasive surface. The tool is thereafter moved away from the upper reverse sharpening guide in a lateral direction across the abrasive surface while nominally maintaining the tool at the acute angle to sharpen the cutting edge in a trailing cutting edge orientation.

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: Adjustable knife holder adapted to maintain sharpness of a knife blade and method of manufacturing the knife holder. The knife holder comprises a housing defining an interior volume therein and a sharpener disposed in the interior volume for slightly sharpening the knife blade each time the knife blade is inserted into or withdrawn from the holder, thereby obviating a need to periodically resharpen the knife blade. The sharpening component can be conveniently removed and interchanged with another sharpener for maintaining sharpness of various types, styles and sizes of knives.

Abstract: A container for storing at least one object, such as a knife, utensil, and the like, wherein the object has a blade that is occasionally dressed is disclosed. The container includes a housing presenting an object-receiving opening and a blade-dressing assembly configured to provide selective dressing of the blade. The blade-dressing assembly includes a carrier and a dressing component supported on the carrier. The carrier is shiftably supported on the housing so as to move between a storage position in which the dressing surface is incapable of engaging the blade and an operating position in which the dressing surface is engageable by the blade.

Abstract: A knife sharpener having an angled bolster for providing predetermined sharpening angles with respect to the sharpening surface is provided. The angled bolster of the knife sharpener preferably includes two different angled surfaces for establishing at least two different predetermined sharpening angles for a cutting implement to be sharpened. The angled bolster is configured to set up the knife sharpening angle at predetermined angles with respect to the sharpening surface.

Abstract: Apparatus and associated method for sharpening a cutting edge of a tool. In accordance with some embodiments, a side of the tool is placed in contacting engagement against a reverse sharpening guide surface to orient the tool at an acute angle with respect to an abrasive surface, with the abrasive surface extending in a lateral direction from a first end to a second end and the reverse sharpening guide surface located proximate the first end. The tool is moved away from the reverse sharpening guide surface and along the abrasive surface in the lateral direction toward the second end while nominally maintaining the tool at the acute angle so that a cutting edge of the tool is sharpened against the abrasive surface in a trailing cutting edge orientation with a top surface of the tool opposite the cutting edge maintained closer to the second end than the cutting edge.

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 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 sharpening tool includes a main base (10) having a mounting seat (12) provided with a first receiving recess (121) and a second receiving recess (122), two first grinding blades (13) mounted in the first receiving recess, an attachment device (11) mounted on the main base, a grinding unit (20) mounted on the mounting seat, and a cover (30) mounted on the mounting seat. The grinding unit includes a second grinding blade (21) mounted in the second receiving recess and having a grinding face (211), and a catch plate (23) mounted on the second receiving recess and having an abutting portion (231) facing the grinding face of the second grinding blade. The first grinding blades provide a double-side grinding function, and the second grinding blade provides a one-side grinding function.

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 blade sharpening apparatus includes a base member including a front face and a rear face and a blade sharpening member attached to the base member and being adapted to straighten a blade of a knife. The blade sharpening apparatus further includes an edge sharpener disposed within the base member and adapted to sharpen an edge of a knife.

Abstract: An arrow preparation system preferably includes a lengthwise base, at least two arrow supports and a grinding member. The lengthwise base preferably includes a pair opposing rails for slidably retaining the at least two arrow supports and the grinding member. Each arrow support preferably includes a support slidable base, a pair of roller bearings, an anchor pin and a knurled nut. The knurled nut is secured to anchor pin and threadably retained in the support slidable base. The pair of roller bearings are rotatably retained on a top of the support slidable base to support an arrow shaft. The grinding member preferably includes a slidable grinding base, the anchor pin and the knurled nut. The slidable grinding base includes a vertical grinding face. A piece of self-sticking sandpaper is applied to the vertical grinding face. The knurled nut and anchor pin and threadably retained in the slidable grinding base.

Abstract: The invention relates to scissors and a sharpening device. The scissors include two blades, each blade having a cutting edge and a back edge which respectively form opposite longitudinal edges of the blade. A pivot connects the two blades for relative movement of the blades between an open condition in which the cutting edge of each blade are apart and a closed condition in which each blade are substantially adjacent and the back edge of each blade projects beyond the cutting edge of the other blade. The blades also include a sharpening condition in which the cutting edge of each of the blades can be sharpened. A biasing means is included for biasing the blades away from the sharpening condition towards the closed condition and/or the open condition. The sharpening device is for scissors including two blades having a cutting edge.

Abstract: A scraper in combination with a sharpener provides consistent sharpening of the scraper blade. The scraper has a scraper blade, blade holder, and bearing surface. The sharpener has a sharpening element and a guide generally parallel to the sharpening element. The bearing surface of the scraper fits the guide of the sharpener and the scraper blade contacts the sharpening element. The scraper can be drawn along the guide to draw the blade along the sharpening element. The bearing surface and guide keep the blade in consistent and correct relation to the sharpening element to provide proper sharpening of the scraper blade. Adaptors may be used to sharpen additional types of blades or tools on the sharpener and different types of sharpening elements may be used in the sharpener.

Abstract: A pocket abrasive sharpener having a housing formed with a pair of upper slots and a lower open compartment. A pair of abrasive ceramic stones is mounted in one of the slots to form a V-shaped sharpening edge. Each ceramic stone has at least one flat face to abut an adjacent reversed stone to form the V-shaped sharpening slot. The stone has an abrasive cutting edge formed with a radius for sharpening serrated edges and having abrasives surfaces on both sides of the radius. A pair of abrasive blades having V-shaped carbide cutting edges is mounted in the other of the slots to also form a V-shaped sharpening slot. A tapered abrasive of is pivotally mounted on the housing and is moveable from the compartment to an extended position for sharpening knives and removing pins in certain military and civilian rifles.

Abstract: A hand-held tool for resurfacing wiper blades which may be utilized with the wiper blade still installed on a vehicle. The tool includes a case having a rectangular cross section. Enclosed within the case are two resurfacing stones: a first resurfacing stone having a rougher surface and a second polishing stone for applying a final finish to the wiper blade. One or more float springs are situated inside the case and between the resurfacing stones to apply pressure to the stones and to assure that appropriate resurfacing pressure is applied to the wiper blade.

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: An abrasive sharpener having a body and an integral handle. The body possesses a pair of upper slots for receiving an edge to be sharpened. One of slot has a pair of crossed diamond abrasive rods having a square cross section generally along its length. The other slot includes a pair of abutting ceramic blades having triangular configuration. Two offset slot portions having a ceramic rod is also provided on the body.

Abstract: A pocket abrasive sharpener having a housing formed with a pair of upper slots and a lower open compartment. A pair of abrasive ceramic stones is mounted in one of the slots to form a V-shaped sharpening slot. Each ceramic stone has at least one flat face to abut an adjacent reversed stone to form the V-shaped sharpening slot. The stone has an abrasive cutting edge formed with a radius for sharpening serrated edges and having abrasive surfaces on both sides of the radius. A pair of abrasive blades having V-shaped carbide cutting edges is mounted in the other of the slots to also form a V-shaped sharpening slot. A tapered abrasive rod is pivotally mounted on the housing and is moveable from the compartment to an extended position for sharpening knives and removing pins in certain military and civilian rifles.

Abstract: 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 present invention, an elongated sharpening stone is held at a desired angle between underlying support structures on a base and a securing cap. A planar edge of the stone is exposed in an adjustable channel between the stone and a slidably adjustable sidewall. The angle of the sharpening stone corresponds to correct angle for a sharpened edge on a rotary blade disposed on a hand held rotary cutter, which is inserted into the channel. By advancing the cutter through the channel an edge of the rotary blade may be honed and/or sharpened.

Abstract: A sharpening device for sharpening operative instrumentation having a gripping handle 4 and an acutely angled receptacle support 6, both of which form a radiated palmer contour 8, and both of which have flattened self balancing table rest 10 terminations. The hone receptacle 6 has an attached offset rectilinear container or whet-stone receptacle 12 with guard walls 16 that extend above a contained whet-stone 14. The instrument entry channel 18 is a shorter wall that allows full usage of the whet-stone surface without forcibly influencing sharpening angulations due to an excessively high wall. The offset receptacle support 6 and whet-stone receptacle 12 create two overhangs or a vertical locking rest 20 and a horizontal locking 22 rest that engage with a table. The locking rests coupled with the angled handle 4 receptacle support 6 and resultant palmer contour 8 permit two ergonomic holding positions that allow for both vertical and horizontal honing orientations.

Abstract: The invention relates to scissors and a sharpening device. The scissors include two blades, each blade having a cutting edge and a back edge which respectively form opposite longitudinal edges of the blade. A pivot connects the two blades for relative movement of the blades between an open condition in which the cutting edge of each blade are apart and a closed condition in which each blade are substantially adjacent and the back edge of each blade projects beyond the cutting edge of the other blade. The blades also include a sharpening condition in which the cutting edge of each of the blades can be sharpened. A biasing means is included for biasing the blades away from the sharpening condition towards the closed condition and/or the open condition. The sharpening device is for scissors including two blades having a cutting edge.

Abstract: A windshield wiper repairing device comprises of a hollow frame (1) having both ends thereof attached to a cover (11) respectively and a set of repairing means (2) incorporated into said frame (1). Said wiper repairing device is characterized in that two pyramid-shape grooves (12) which facing each other are provided alongside two elongated surfaces of said frame (1), and said repairing means (2) consists of a first and second seats (21, 22), each having an abrasion element (211, 221) attached thereon fitted into said grooves (12), and a first and second springs (23, 24) provided vertically between said first and second seats (21, 22) for engaging both.

Abstract: A scraper has a blade holder that tapers from a wider width to a narrower width. A blade with a scraping edge is mounted on the blade holder with the scraping edge near to the narrower width of the blade holder. The blade is interchangeably mounted and can be replaced with other blades. The blades can have different widths for their scraping edges. The tapered shape of the blade holder allows blades with different widths of scraping edges to be used in the scraper without the blade holder interfering with the use of the scraper. Embodiments of the scraper have handles which may have features such as a hand rest near the blade holder to provide additional pressure and a ring at the end of the handle to provide additional pull. At least one embodiment of the scraper has a bearing surface to fit on a guide on a sharpener.

Abstract: A blade sharpening assembly generally including a pair of clamping members disposable in coextensive relationship, each providing end portions for receiving a blade therebetween with a cutting edge thereof disposed beyond the ends thereof; means interengaging the clamping members functional as a fulcrum in permitting the end portions to displace in clamping a blade therebetween; means interconnecting the clamping members for angularly displacing the clamping members about the fulcrum; a guide member pivotally connected to a second end portion of each of the clamping members, pivotal between a first position disposed coextensively with a connected clamping member, and a second position at an angle relative to the connected clamping member, alignable with the guide member of the other of the clamping members, when the clamping members are disposed in coextensive; means interconnectable between the guide members when the guide members are disposed in alignment for releasably retaining the guide members in alignm

Abstract: An optical disc polishing device includes a housing in which a disc turntable assembly is arranged for carrying an optical disc on a rotation surface thereof. The housing includes a cover that carries a polishing assembly. The cover forms a slot serving as a track extending in a radial direction of the optical disc. The polishing assembly includes a positioning member, a polishing wheel, and a locking knob. A threaded section is provided on the positioning member and the polishing wheel is coupled to the positioning member to be opposite to the threaded section. The threaded section is set through the track slot to threadingly engage the locking knob in a releasable and re-tightenable manner so as to allow for position adjustment of the polishing assembly with respect to the track slot. The polishing assembly can thus be positionable to oppose a scratch formed on the disc.

Abstract: 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 present invention, an elongated sharpening stone is held at a desired angle between underlying support structures on a base and a securing cap. A planar edge of the stone is exposed in an adjustable channel between the stone and a slidably adjustable sidewall. The angle of the sharpening stone corresponds to correct angle for a sharpened edge on a rotary blade disposed on a hand held rotary cutter, which is inserted into the channel. By advancing the cutter through the channel an edge of the rotary blade may be honed and/or sharpened.

Abstract: A scraper in combination with a sharpener provides consistent sharpening of the scraper blade. The scraper has a scraper blade, blade holder, and bearing surface. The sharpener has a sharpening element and a guide generally parallel to the sharpening element. The bearing surface of the scraper fits the guide of the sharpener and the scraper blade contacts the sharpening element. The scraper can be drawn along the guide to draw the blade along the sharpening element. The bearing surface and guide keep the blade in consistent and correct relation to the sharpening element to provide proper sharpening of the scraper blade. Adaptors may be used to sharpen additional types of blades or tools on the sharpener and different types of sharpening elements may be used in the sharpener.

Abstract: A sharpener for creating cross-grind knife edges includes a nominally flat annular abrasive sharpening member which could be a ring or a disk and is rotated about its center and held against a moving knife edge facet to simultaneously and sequentially abrade the knife edge at multiple locations on the abrasive member. The disk may be slidably mounted on a shaft in opposition to a spring restraining force. The disk is nominally disposed in a vertical orientation. The sharpener may include multiple stages including a manual stage having a pair of off axis conical shaped rotatable abrasive coated disks which have abrading lines on opposing facets which are not parallel but cross and intersect in a crossing pattern at the blade edge.

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 sharpening device (1) with a guiding slot (6) for knife blade to be sharpened and main sharpening rods (10a, 10b) arranged on both sides of the guiding slot (6) that cross each other at a crossing point (11) in the area of the guiding slot (6) and that execute pivoting movements (14a, 14b) against an elastic spring-activated resetting force when a knife blade abuts against them, is additionally equipped with pre-sharpening elements (7a, 7b) in at least one longitudinal segment of the guiding slot (6). During its course along the guiding slot, a knife blade to be sharpened abuts against the fixed pre-sharpening elements (7a, 7b) and against the movable main sharpening rods (10a, 10b) whereby the sharpening effect of the sharpening device (1) on the knife blade is increased.

Abstract: An abrasive sharpener having a body and an integral handle. The body possesses a pair of upper slots for receiving an edge to be sharpened. One of slot has a pair of crossed diamond abrasive rods having a square cross section generally along its length. The other slot includes a pair of abutting ceramic blades having triangular configuration. Two offset slot portions having a ceramic rod is also provided on the body.

Abstract: The combination of a knife storage block and a knife sharpener including a sharpening unit. The combination has a guard extending forwardly from either the knife storage block or the sharpener which in use protects a user's hand while drawing a knife through the sharpening unit. The knife sharpener may be external to the knife block or integral to it.

Abstract: 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. The rotation is derived through the means of a spring steel actuator mechanism making contact with the cogwheels of the sharpening rod holders. Magnets retain the sharpening rods in place within the sharpening rod holders. Sharpening rods may be easily removed and stored in troughs on the upper surface of the protective cover. A variety of sharpening rods with different abrasive surfaces can be easily exchanged in the device.