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| Number | Title | Issue Date |
| 8028687 | Diamond tool The invention provides a segment type diamond tool capable of improving cutting rate and reducing the amount of fine debris generated during cutting by properly arranging diamond particles in a cutting segment of the diamond tool. In the invention, the layers of dia... | 10/04/2011 |
| 7971584 | Sawing strip and method for simultaneously cutting off a multiplicity of slices from a cylindrical workpiece using a sawing strip A sawing strip for fixing a substantially cylindrical workpiece when cutting off slices from this workpiece with a wire saw has a first face, which is concavely curved perpendicular to its longitudinal direction for connecting to the workpiece, a second face opposit... | 07/05/2011 |
| 7954483 | Cutting segment for cutting tool and cutting tools The invention provides a cutting segment for a cutting tool for cutting or drilling a brittle work piece such as stone, bricks, concrete and asphalt, and a cutting tool having the cutting segment. The cutting segment includes a cutting surface for cutting a work pie... | 06/07/2011 |
| 7661419 | Cutting segment for diamond tool and diamond tool having the segment The invention relates to a cutting segment of a diamond tool for cutting or drilling a brittle workpiece such as stone, bricks, concrete and asphalt, and a diamond tool having the same. The invention allows superior cutting rate and lengthy useful life without suffe... | 02/16/2010 |
| 7506644 | Grinding wheel A grinding wheel has a disc having a connection hole formed at a center thereof, to which a rotation axis of a grinder is connected, and a plurality of abrasive segments detachably connected to a surface of the disc. A plurality of fixing recesses are radially forme... | 03/24/2009 |
| 7434575 | Chainsaw chain for concrete The invention relates to a chainsaw chain, especially for use in cutting concrete, comprising a plurality of teeth which are respectively provided with at least one cutting segment carrier and at least one cutting segment. The cutting segment comprises diamond punch... | 10/14/2008 |
| 7373935 | Carbide wire blade This invention relates to a carbide wire blade that is suitable for use in sawing through subsea structures. The carbide wire blade employs a tungsten carbide cutter, a vibration dampening member, and the first cylindrical spacer, slideably mounted on a solid cylind... | 05/20/2008 |
| 7353819 | Processing tips and tools using the same A processing tip and a cutting tool employing the same, including a tip body of a mixture of metal and abrasive material, and at least one projection coupled to the tip body, the projection extending in a direction perpendicular to a direction of a plane of contact ... | 04/08/2008 |
| 7337775 | Cutting tip for diamond tool and diamond tool A cutting tip for a diamond tool and a diamond tool having the same which serve to cut or perforate various brittle materials such as stone, brick, concrete and asphalt. In particular, the cutting tip for a diamond tool and the diamond tool have diamond particles wh... | 03/04/2008 |
| 7255513 | Diamond trowel blade A diamond trowel blade 20 comprises diamond particles that will attach to a power trowel for surface preparation of hardened concrete surfaces. The diamond trowel blade includes a diamond bearing surface 22, for preparing the concrete surface; a backin... | 08/14/2007 |
| 7178517 | Diamond saw blade for milling The present invention relates to a diamond saw blade for milling. The rim of the circular metal with a shaft or the front end of the tubular body or an edge of the strip metal has multiple equidistant openings for positioning the diamond grains. The width of the ope... | 02/20/2007 |
| 7134430 | Cutting segment, method of manufacturing cutting segment, and cutting tool A cutting segment for a cutting tool used for cutting or drilling a brittle workpiece, such as stone, brick, concrete and asphalt, a method of manufacturing the segment and a cutting tool provided with the segment are disclosed. The segment comprises a plurality of ... | 11/14/2006 |
| 7128066 | Diamond tool with metal plate inserted therein Disclosed is a diamond tool having a metal plate inserted therein. Between abrasive layers containing diamond particles is inserted a ferrous or non-ferrous metal plate having a wear resistance lower than that of the abrasive layers such that a concave groove is spo... | 10/31/2006 |
| 6945850 | Saw blade with abrasive surface The present invention relates to a saw blade for cutting and finishing the surface of a work piece. The saw blade having a set of teeth disposed about the outer edge for making a cut in a work piece and an abrasive secured to the lateral surface of the saw blade. Th... | 09/20/2005 |
| 6932076 | Diamond circular saw blade An enhanced and improved diamond circular saw blade of an invention is disclosed. The invention includes welding and jointing of the periphery of a circular steel blade having an axle bore and a plurality of arc-shaped copper alloy metal-sheets. Each arc-shaped copp... | 08/23/2005 |
| 6915794 | Diamond wire equipped with improved cutting bushes for cutting stone material A diamond wire (1) is disclosed for cutting stone material comprising a support cable (2) with around it a plurality of cutting bushes (3) and a plurality of elastic means (5). The cuttting bushes (3) comprise: an hollow cylindric ... | 07/12/2005 |
| 6892719 | Blade for cutting concrete A method and apparatus for providing radiused corners on a crack control groove is provided. A radius on the two opposing corners of the crack control groove is simultaneously formed by inserting a pilot segment of a rotating cutting blade into the groove to chase t... | 05/17/2005 |
| 6868848 | Cutting tool and method of using same A cutting tool for cutting hard rock, the cutting tool including one or more cutting elements each including a pointed or chisel-shaped body including a diamond composite material including diamond crystals bonded together by a silicon carbide matrix, the each cutti... | 03/22/2005 |
| 6845767 | Segmented diamond blade with undercut protection A saw blade of uniform abrasive segments with undercut protection to prevent loss of segments and to extend blade life. A metal core includes a uniform peripheral contour formed as a series of spaced apart, segment mounting sections separated by radial gullet channe... | 01/25/2005 |
| 6783442 | Nickel-diamond-coated saw wire with improved anchoring of the diamond particles The invention relates to a saw wire consisting essentially of a steel wire, an intermediate layer and a metallic binding phase into which diamond grains with an average diameter of 10 to 50 micrometers are inserted, characterized in that the metallic binding phase h... | 08/31/2004 |
| 6712062 | Sintered metal bonded segments with an abrasive action, for tools Sintered metal bonded segments with an abrasive action, and containing particles of hard material, for tools for machining or cutting hard and/or brittle materials with a tool support which accommodates the sintered metal bonded segments, which are made up of indivi... | 03/30/2004 |
| 6526960 | Wire-saw and method for manufacturing the same A wire-saw constituted by a rope-like core wire and a cylindrical coil-like saw-wire body wounded around the core wire, and a large number of abrasive grains firmly fixed to the saw-wire body by metal. Problems of conventional wire-saws, such as unstable ... | 03/04/2003 |
| 6463921 | Abrasive wire for a wire saw and a method of manufacturing the abrasive wire An abrasive wire provides an efficient cutting operation with high accuracy and a longer service life. Abrasive grains are provided around a core wire. The abrasive grains are bonded to the core wire by a light curing resin or an electron beam curing resi... | 10/15/2002 |
| 6460532 | Diamond cutting wheel A diamond cutting wheel is disclosed. The cutting wheel is capable of reducing frictional resistance, maximizing cutting efficiency, preventing the formation of chippings and discharging cut chips effectively, by means of a plurality of depressions formed... | 10/08/2002 |
| 6461940 | Dicing blade and method of producing an electronic component A dicing blade is disclosed which is capable of precisely cutting an object at a high speed without causing significant deposition of swarf upon a cut surface even when the object being cut has a large thickness. The dicing blade includes a ring-shaped cu... | 10/08/2002 |
| 6446621 | Saw wire A saw wire according to the invention has two parallel wire strings having a number of saw elements evenly distributed along the wire strings. A saw element includes a platform and a cutting plate. The platform has grooves intended to receive respective p... | 09/10/2002 |
| 6408838 | Rotary cutting saw with slits shaped for minimizing wear of neck portion A rotary cutting saw comprising: a base disk; and a plurality of abrasive segments which are bonded to an outer circumferential surface of the base disk so as to be spaced apart from each other in a circumferential direction of the base disk. The base dis... | 06/25/2002 |
| 6276995 | Electronic component and method of manufacturing same A method of manufacturing an electronic component provides a wide area which can be used for forming elements on the surface of a mother substrate and effectively produces an electronic component having excellent performance characteristics. At least a po... | 08/21/2001 |
| 6257226 | Metal-cutting saw having straight and set teeth and method of making A metal saw for making long cuts through thick soft metals such as aluminum, copper or stainless steel, where friction, cutting force and scarring of the cut sides are minimized at a low production cost by grinding all teeth with a top edge inclined right... | 07/10/2001 |
| 6131558 | Saw wire with a pearl A saw wire, in particular for use in a wire saw, with at least one saw pearl having an approximately cylindrical outer shape. The saw pearl has hard members bound into a fixed solid binding material. In order to reach a high initial cutting performance wi... | 10/17/2000 |
| 6105568 | Diamond wire saw A diamond wire saw includes a steel cable, a plurality of rotary diamond abrasive barrels respectively mounted around the steel cable, and pairs of compression springs respectively mounted around the steel cable and fastened to each of the rotary diamond ... | 08/22/2000 |
| 6070570 | Wire-saw and its manufacturing method The present invention provides a wire saw for use in cutting works of electronics materials or optical materials and a method for manufacturing the same, said wire saw having the following characteristic features. Namely, onto a high-strength core wire 2,... | 06/06/2000 |
| 6039641 | Brazed diamond tools by infiltration The present invention describes a diamond tool with diamond bonded chemically by a braze that contains either Cr, Mn, SI, or Al or mixtures or alloys thereof. The diamond tool is made by infiltrating the braze into a matrix metal that contains diamond in ... | 03/21/2000 |
| 6035844 | Cutting tool and method for making the same A cutting tool is provided which includes a steel metal body and a cemented carbide cutting tip secured to the metal body by a metallic layer. The metallic layer has a high-strength metallic portion and a high-toughness metallic portion. The high-strength... | 03/14/2000 |
| 6021773 | Wire saw In a wire saw primarily intended for sawing stone with the aid of light portable equipment, a continuous, easily flexed wire loop or wire on which cutting elements are uniformly spaced includes elastomeric spacing elements between the cutting elements. Wi... | 02/08/2000 |
| 5871005 | Wheel cutter blade A wheel cutter blade has a plurality of blade bodies affixed around the periphery of a blade base plate. The inner peripheral portion of each blade body is joined to the blade base plate. The peripheral portion of each blade body also joins to the periphe... | 02/16/1999 |
| 5671725 | Brick and block wall repair device A brick and block wall repair device comprising: a chain saw blade formed in a planar configuration with a continuous outer edge including a slidable device, the blade being operatively coupled to the motor of a chain saw in the operative orientation, the... | 09/30/1997 |
| 5544643 | Method for saving ductile from material having a concrete lining A saw blade possesses a base element onto which boron nitride particles are applied in the cutting region. The boron nitride particles are bonded by means of a metallic bonding layer, which preferably consists of nickel or a nickel alloy with a Vickers ha... | 08/13/1996 |
| 5438973 | Shaped blades A cutting blade the core of which is generally tear-drop shaped in cross-section. The sides of the tear-drop shaped core form an included angle of not less than about 5 degrees (and typically not less than about 9 degrees), and abrasive is provided essent... | 08/08/1995 |
| 5433187 | Diamond cutting saw blades In a diamond cutting saw blade, a plurality of slits 1 are formed at regular intervals on the outer periphery of a disc-shaped iron substrate 2, and a plurality of segment chips 3 are fixed onto the outer periphery of the disc-shaped iron substrate 2. Two... | 07/18/1995 |
