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  Knife sharpening method and systemUSPTO Application #: 20080020681Title: Knife sharpening method and system Abstract: A method and system are disclosed. The system may include a device for sharpening a convex edge on the blade of a knife. The device may include a resilient material and a plurality of abrasive sheets of varying grit values. Each abrasive sheet may be removably attachable to a top of the resilient material. The method may include placing the blade against the abrasive surface at a small angle with a first side of an edge to be sharpened of the blade contacting the abrasive surface and a spine of the blade elevated above the abrasive surface, applying a downward force on the blade causing the edge to be sharpened to compress the resilient abrasive surface, and moving the first side of the edge to be sharpened along the abrasive surface in the direction of the spine. (end of abstract) Agent: Duckor Spradling Metzger & Wynne A Law Corporation - San Diego, CA, US Inventor: Ronald P. Leyva USPTO Applicaton #: 20080020681 - Class: 451045000 (USPTO) Related Patent Categories: Abrading, Abrading Process, Razor, Knife, Or Scissors Sharpening The Patent Description & Claims data below is from USPTO Patent Application 20080020681. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates in general to the sharpening of knifes. It more particularly relates to a method and system for sharpening the blades of knifes to have a convex edge. [0003] 2. Background Art [0004] There is no admission that the background art disclosed in this section legally constitutes prior art. [0005] Knives are common household items. With typical use and/or abuse, the blade or cutting edge of the knife will lose some of its sharpness. Individuals using knives want them to be sharp and feel knives are safer to use when they are sharp. However, keeping the blade sharp is not easy and requires periodic sharpening. Some knife owners prefer to have their knives professional sharpened and other knife owners prefer to sharpen their own knives. [0006] The edge of a blade can come in a variety of shapes with V-shaped edge, beveled edge, chisel edge, and convex edge being the most common. Of these edges the convex edge is typically considered the best because it combines a high performance edge, while maintaining the strength of the blade. However, drawbacks of the convex edge are its difficulty to manufacture and its difficulty to sharpen. [0007] One method of sharpening a convex edge involves using a grinding wheel, a stone, or other non-resilient abrasive materials. When sharpening a convex edge using one these items, the blade must be appropriately rotated to maintain the convex shape of the edge. A considerable amount of skill is required to properly sharpen a convex edge in this manner. [0008] Another method of sharpening a convex edge has been proposed, and involves using a mouse pad with sandpaper attached to one or both sides. This method is only mentioned in regards to sharpening blades with existing convex edges, and details surrounding its actual performance or technique are lacking. BRIEF DESCRIPTION OF THE DRAWINGS [0009] The features of this invention and the manner of attaining them will become apparent, and the invention itself will be best understood by reference to the following description of certain embodiments of the invention taken in conjunction with the accompanying drawings, wherein: [0010] FIG. 1 is a perspective view of an embodiment of a blade sharpening device of the present invention; [0011] FIG. 2 is a top view of the blade sharpening device of FIG. 1 including a knife being sharpened; [0012] FIG. 3. is a side view of the blade sharpening device of FIG. 2 with the knife being sharpened; [0013] FIG. 4 is an enlarged side sectional view of the blade being sharpened; [0014] FIG. 5 is a perspective view of another embodiment of the blade sharpening device; [0015] FIG. 6 is a bottom view of the blade sharpening device of FIG. 5; [0016] FIGS. 7-11 are side views showing an embodiment of the steps of the method of sharpening a blade of the present invention; and [0017] FIG. 12 is a partial side view of another embodiment of the attachment of a nonskid pad to the resilient material in the device of FIG. 1. DESCRIPTION OF CERTAIN EMBODIMENTS OF THE INVENTION [0018] It will be readily understood that the components of the embodiments as generally described and illustrated in the drawings herein, could be arranged and designed in a wide variety of different configurations. Thus, the following more detailed description of the embodiments of the system, components and method of the present invention, as represented in the drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of the embodiments of the invention. [0019] A method and system are disclosed, and may include a method of sharpening a blade to a convex edge on a resilient abrasive surface. The method may include placing the blade against the abrasive surface at a small angle with a first side of an edge to be sharpened of the blade contacting the abrasive surface and a spine of the blade elevated above the abrasive surface, applying a downward force on the blade causing the edge to be sharpened to compress the resilient abrasive surface, and moving the first side of the edge to be sharpened along the abrasive surface in the direction of the spine. [0020] In accordance with another disclosed embodiment of the invention, there is provided a device for sharpening blades, which may include a resilient material and a plurality of abrasive sheets of varying grits. Each sheet may be removably attachable to a top of the resilient material [0021] According to another aspect of a disclosed embodiment of the invention, there is provided a method of removably attaching abrasive sheets of varying grits to a resilient material for sharpening blades. The method may include attaching a first magnetic sheet to the resilient material, coating one side of a second magnetic sheet with a repositionable adhesive, attaching the second magnetic sheet to the first magnetic sheet such that the adhesive coated side is opposite the first magnetic sheet, and removably attaching one of the abrasive sheets to the adhesive coated side of the second magnetic sheet. Continue reading... Full patent description for Knife sharpening method and system Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Knife sharpening method and system patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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