Class / Patent application number | Description | Number of patent applications / Date published |
030350000 | Metallurgical feature | 14 |
20090056150 | Blade | 03-05-2009 |
20090064508 | Hand held sharpening device - This invention is a manual sharpening device for knife blades that creates a micro-serrated edge on the cutting edge of a knife (microscopic saw). There are two types of knife blades on the world market: plain (flat cutting surface) and serrated (undulated cutting surface, also known as saw knives). Each has a wide range of shapes and sizes for various applications. This sharpening tool allows the user to create a cutting edge on any knife that combines the effects of the plain and serrated edge and thereby expands the potential applications of any knife. | 03-12-2009 |
20090217537 | Novel advanced materials blades and cutting tools - A novel advanced materials blade has been invented. It is intended for use by professionals and other people who desire a high quality blade or other cutting tool. It offers many advantages, having an extraordinarily durable and long lasting edge and being tarnish free. The blade is composed of a superalloy from the cobalt-chrome-nickel ternary phase diagram; said blade having a body, and edge, and a tang. In an embodiment the blade edge is transmuted into a metallo-ceramic graded material using carbon to form carbides (-MC). These carbides are diffusion integrated into the superalloy, making this blade a graded material. In an additional embodiment the blase edge is atomically modified causing the excess carbon to form tetrahedral carbon (diamond). Applications of this novel advanced materials blade include professional chefs knifes, ice axe tools, and wood cutting axes. | 09-03-2009 |
20090241352 | BLADE USING ULTRA-HARD MICROSCOPIC PARTICLES - The present invention relates to a blade that comprises a blade main body and an edge part. In the blade main body and the edge part, one or more comprising the edge part are manufactured by using a powder composition that comprises less than 5% by weight of the ultra-hard particle powder having a particle size in the range of 1 μm to 5 μm based on a total weight of the powder composition and the balance metal powder forming a matrix according to a powder metallurgy process. The blade according to the present invention has a sawlike or wavy edge part to provide an excellent cutting ability. Even though the abrasion occurs by using the blade, since the sawlike or wavy edge part is semipermanently maintained, the cutting ability is not reduced. | 10-01-2009 |
20100162578 | Tools having anodized aluminum blades - A tool for digging or working soil in which the blade is made of anodized aluminum or anodized aluminum alloy. The anodizing process imparts additional strength, dielectric properties and a low coefficient of friction. The preferred aluminum alloy is one of the 6000 or 7000 series alloys and the preferred method of anodizing the alloy is the Type III method. | 07-01-2010 |
20110078909 | Apparatus and method of electronically impregnating a wear-resistant cutting edge - An apparatus and method for treating a cutting edge with a carbide coating to form a high endurance cutting edge that is self sharpening. The cutting edge has one side of its bevel treated with an electronically impregnated coating to create a wear resistant surface employing Tungsten, Titanium or Vanadium Carbide. The coating providing an abrasion resistant cutting edge and creates a differential hardness on the total cutting edge thereby extending its cutting ability through a wear-resistant surface on its treated face and a faster wear on the untreated surface causing the cutting edge to be self sharpening. | 04-07-2011 |
20120060379 | UTILITY KNIFE BLADE - A utility knife blade includes a portion made of a first material; and an elongated portion made of a second material, the second material being harder than the first material and coated on the first material by melting a powder of the second material on the first material, the elongated portion forming the tip of the blade, wherein the second material includes tungsten carbide particles embedded in a soft binder, and wherein the size of at least 90% of the tungsten carbide particles is lower than about 5 micrometers. | 03-15-2012 |
20120144680 | CUTTING BLADE AND METHOD OF MANUFACTURING THE SAME - A blade that includes a body formed from a carbon steel material is provided. The body has a cutting edge portion and a side surface. The side surface has a colored oxide layer formed thereon. Selected portions of the oxide layer have been removed to reveal the underlying carbon steel material so as to provide indicia on the surface of the blade by virtue of a color contrast between the colored oxide layer and the revealed carbon steel material. A method of manufacturing such a blade is also provided. | 06-14-2012 |
20120317822 | CUTTING EDGE STRUCTURE FOR CUTTING TOOL, AND CUTTING TOOL WITH CUTTING EDGE STRUCTURE - A cutting edge structure for a cutting tool including: a base member having first and second surfaces intersecting each other; and a cutting edge member supported by the base member and having higher hardness than the base member. The cutting edge member includes a coating formed by generating electric discharge between the second surface and a discharge electrode and by depositing a constituent material of the discharge electrode or a reacted substance of the constituent material on the second surface, the discharge electrode being formed by molding powder of metal, powder of a metal compound, powder of a ceramic, or powder of a mixture thereof. An edge of the coating projects from a cross ridge line between the first and second surfaces toward a distal end side of a cutting edge. The cutting edge angle is 10° to 20° inclusive. | 12-20-2012 |
20130081283 | COMPOSITE KNIFE BLADE - A composite knife blade includes a cutting-edge piece of a first alloy, a back piece of a second alloy different from the first alloy, the cutting-edge piece and the back piece are brazed together at a serpentine joint. The cutting-edge piece has a high Rockwell hardness value, as compared to a hardness of the back piece. A method of manufacture of the knife blade includes fine blanking the back piece of from a sheet of the second alloy, laser cutting the cutting-edge piece from a sheet of the first alloy, and brazing the first piece to the second piece to form a composite blade. The composite blade is then cooled from the brazing temperature to an austenizing temperature of the cutting-edge piece, and quenched, to harden the cutting-edge piece. | 04-04-2013 |
20130133209 | Diamond-Containing Blade - Disclosed herein is a diamond-containing blade, including: a blade body having at proximal end a connection part to be fitted into a gripper; and an edge longitudinally formed along one side of the blade body, wherein the blade is manufactured by a process in which a power mixture for constituting the edge, including 20 wt % or less of diamond particles coated with Ti and having a particle size of 20 μm or less and residual Ti powder or Ti alloy powder, is charged in a space of a mold corresponding to the edge, Ti powder or Ti alloy powder for constituting the blade body is charged in another space of the mold corresponding to the blade body, the charged powders are pressed to obtain a molded product, the molded product is sintered to obtain a sintered body, and then an edge of the sintered body is sharpened. | 05-30-2013 |
20140202010 | EDGE TOOL - In an edge tool having a cutting edge made of a nonmetal inorganic solid-state material with a facet formed on a ridge of the cutting edge, a pre-wearing layer having a thickness of 5 nm or more and having a surface structure formed by a network of recesses and protuberances surrounded by the recesses is formed on a surface of the facet. The average width of the protuberances is 5 nm to 50 nm. A property value of the pre-wearing layer is different from the property value of the inorganic solid-state material underlying the pre-wearing layer, and there is no solid-solid interface between the pre-wearing layer and the inorganic solid-state material. | 07-24-2014 |
20140237827 | UTILITY KNIFE BLADE - A utility knife blade includes a portion made of a first material; and an elongated portion made of a second material, the second material being harder than the first material and coated on the first material by melting a powder of the second material on the first material, the elongated portion forming the tip of the blade, wherein the second material includes tungsten carbide particles embedded in a soft binder, and wherein the size of at least 90% of the tungsten carbide particles is lower than about 5 micrometers. | 08-28-2014 |
20160375593 | Composite knife - A composite knife made from layers of Metal Matrix Composite (MMC) is disclosed. It includes a middle layer of fibrous preform including a hard insert placed longitudinally at its periphery. The hard insert, after sharpening, represents the cutting blade portion of the composite knife. The composite knife further includes a carrier which forms the load bearing member of the cutting blade, as well as forming the integral handle of the composite knife. The carrier portion of the composite knife includes at least one top and at least one bottom layers of fibrous preform, sandwiching the middle layer that contains the cutting edge portion of the knife. A metallic material is infiltrated within the fibrous preforms and extends throughout the composite blade structure forming the MMC knife, the metallic material bonding the middle layer within the carrier, and bonding the top and bottom surface of the hard insert within the carrier. | 12-29-2016 |