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| Number | Title | Issue Date |
| 8113916 | Straightening and centerless grinding of wire for use with medical devices The invention includes methods of manufacturing shafts to be used in medical devices. In particular, methods are disclosed to improve straightness and profile of wire used to form guidewires. The wire is preferably twist-straightened with a desired twist orientation... | 02/14/2012 |
| 7901271 | Shimless dual arbor scrap chopper A dual arbor chopper that is configured such that the knife blades of the chopper do not require shims after being sharpened. The arbors utilize a blade attachment recess that is oriented in an opposite direction as existing arbors used in choppers, in combination w... | 03/08/2011 |
| 7785174 | Method of producing cut blades for instruments used in root canal treatment A blank for use in producing an endodontic instrument using a grinding technique includes a cylindrical portion, and a generally conical portion which is to be machined by the grinding technique to form the active part of the endodontic instrument. The generally con... | 08/31/2010 |
| 7578726 | Method of manufacturing a ceramic surgical instrument The invention relates to a method of manufacturing a surgical instrument having a rotatable shaft 2 and a working part 1 disposed thereon, the working part having at least one cutting edge, wherein the shaft 2 and the working part 1 are m... | 08/25/2009 |
| 7510462 | Multi-diamond cutting tool assembly for creating microreplication tools In one embodiment, a cutting tool assembly used for creating grooves in a microreplication tool is described. The cutting tool assembly includes a mounting structure and multiple diamonds mounted in the mounting structure. For example, first and second tool shanks h... | 03/31/2009 |
| 7402093 | Grinding apparatus for buttons on rock drill bit The present invention relates to grinding apparatus for grinding the hard metal inserts of rock drill bits, said grinding apparatus having a grinding machine carried on an support system that provides a feed pressure for said grinding machine during grinding, said g... | 07/22/2008 |
| 7338344 | Automated drill bit re-sharpening and verification system A completely automated apparatus for verifying the identity and geometry of drill bits, re-sharpening the cutting tip of a drill bit and re-positioning a locating ring upon the shank portion of the drill bit subsequent to the re-sharpening of the cutting tip thereof... | 03/04/2008 |
| 7338286 | Dental implant system An implant comprising two internal anti-rotational features. One anti-rotational feature is adapted to engage a driving tool, while the other anti-rotational feature is adapted to engage an abutment. An implant abutment system is provided with an angled abutment ada... | 03/04/2008 |
| 7337672 | Method for inspecting grinding wheels This invention discloses a method of evaluating the internal structure of a grinding wheel through ultrasonic inspection. ... | 03/04/2008 |
| 7329173 | Tool grinding machine A grinding machine, which includes a grinding wheel rotatable by a motor, a first slide movable in X-axis direction, a second slide supported on the first slide and movable in Y-direction, a bracket supported on the second slide and turnable about Y-axis, a tool hol... | 02/12/2008 |
| 7300334 | Drilling-head-grinding positioning device A drilling-head-grinding positioning device comprises a clamper for clamping a drilling head having a rectangular sliding rod and a sleeve clamping seat installed at a front end of the sliding rod, a cylindrical clamping device received in the sleeve clamping seat a... | 11/27/2007 |
| 7229565 | Chemically assisted surface finishing process A method of surface refinement for refining a first roughness of a surface of a component to a second roughness. The method includes wetting the first roughness surface with an aqueous mixture that includes solid media. The aqueous mixture chemically alters the surf... | 06/12/2007 |
| 7220170 | Blade sharpening machines The invention concerns a blade sharpening machine that can be driven either by manual or automatic control. The blade sharpening machine possess two rotating grinding wheels and a mechanism for supporting the blade to be sharpened so that said blade can be sharpened... | 05/22/2007 |
| 7207867 | Precision cemented carbide threading tap A precision cemented carbide threading tap is designed for use in precision tool holders in synchronous high speed tapping. The precision tap includes a fully cylindrical shank without the aid of squares, flats or other notches. The precision tap further includes a ... | 04/24/2007 |
| 7207111 | Method of manufacturing an endodontic instrument Method for manufacturing endodontic instruments having either helical or non-helical flutes with hard surfaces and resilient cutting edges by either an EDM or ECM process, wherein material is removed from the instrument blank in the desired flute pattern. The EDM or... | 04/24/2007 |
| 7182735 | Elongated intracorporal medical device Alternative designs, materials and manufacturing methods for guidewires. Some embodiments pertain to a composite guidewire having proximal and distal section, and a connector adapted and configured for permanently joining the proximal section to the distal section. ... | 02/27/2007 |
| 7169199 | Curable emulsions and abrasive articles therefrom A curable emulsion comprises: an oil phase comprising blocked polyisocyanate and curative; and an aqueous phase comprising at least partially neutralized crosslinked copolymer of monomers comprising at least one free-radically polymerizable carboxylic acid and at le... | 01/30/2007 |
| 7147546 | Tool holder with moveable alignment finger Method and apparatus for facilitating sharpening of a tool. A tool holder is provided to present the tool for sharpening against an abrasive member, such as a grinding wheel. A moveable jaw member preferably engages a side of the tool to align the tool with a refere... | 12/12/2006 |
| 7147542 | Centerless grinder A centerless grinder for grinding an elongated workpiece includes a grinding wheel having a working surface with a plurality of raised areas extending circumferentially around at least a portion of the working surface. A platform is provided having an elongated top ... | 12/12/2006 |
| 7144307 | Point superabrasive machining of nickel alloys A process for point superabrasive machining of a nickel based material comprising the steps of providing a tool having a grinding surface coated with a superabrasive material, orienting the tool relative to a surface of the nickel based material to be machined so th... | 12/05/2006 |
| 7140815 | Drill for making flat bottom hole The present invention is directed to a helical drill configuration that allows substantially flat bottomed holes to be machined. At the cutting end of the body member, there are at least two cutting edges that are symmetrically oriented on apposing sides of the rota... | 11/28/2006 |
| 7137815 | Root canal treatment tool and method for manufacturing the same The present invention relates to a root canal treatment tool that is formed in a shape of a rod and has a work portion formed in a predetermined length from a tip and a shank formed in a manner continuous with the work portion. The work portion has a shape memory ch... | 11/21/2006 |
| 7118459 | Dressing tool for profiling the tip area of a threaded grinding wheel A dressing tool for profiling the tip area of a threaded grinding wheel used for continuous generation grinding. Concave working faces (13) are arranged in a cylindrical surface of the dressing tool (7) and coated with an abrasive coating. The pitch (P... | 10/10/2006 |
| 7114413 | Portable band saw sharpener The portable band saw sharpener includes a frame for receiving a saw blade that is to be sharpened. A hand-operated motor is pivotally mounted to the frame for driving a grinding wheel, which engages the teeth of the saw blade. A hand-operated structure releasably h... | 10/03/2006 |
| 7104169 | Machine tool and bed structure thereof A machine tool includes X-axis, Y-axis, and Z-axis moving units for producing relative movements between a tool and a workpiece; a C-axis drive unit for rotating the workpiece about a C-axis parallel to the Z-axis; and a B-axis turning unit for turning the tool abou... | 09/12/2006 |
| 7104870 | Modified radial motion (MRM) method for modifying lengthwise curvature of face-milling spiral bevel and hypoid gears The present invention relates to a modified radial motion method for modifying lengthwise curvature of face-milling spiral bevel and hypoid gears, which is capable of modifying a locus of a cutter center into a curve, without changing a head cutter's geometry, by pr... | 09/12/2006 |
| 7094055 | Endodontic reamer and a method for manufacturing endodontic reamers and files An endodontic reamer and a method for manufacturing endodontic reamers and files, more specifically an endodontic reamer having a cylindrical shaft and a working portion extending forward from a removed end of the shaft. The working portion includes, typically, a pa... | 08/22/2006 |
| 7081040 | Tool sharpener with web thickness determination capability Method and apparatus for sharpening a tool, such as a drill bit. A tool sharpener includes a tool holder subassembly which retains and presents the tool against a grinding wheel subassembly. A sensor locates a cutting edge of the tool while the tool is retained by t... | 07/25/2006 |
| 7070483 | Automated drill bit re-sharpening and verification system A completely automated apparatus for verifying the identity and geometry of drill bits, re-sharpening the cutting tip of a drill bit and re-positioning a locating ring upon the shank portion of the drill bit subsequent to the re-sharpening of the cutting tip thereof... | 07/04/2006 |
| 7066868 | Exercise apparatus An exercise apparatus utilizes a user's own weight as a load has a folding A-frame formed from two frame sections hinged together and being foldable on the hinge from a storage position to an operative position. A generally U-shaped swing portion is movably attached... | 06/27/2006 |
| 7059051 | Fluted roll and method for the manufacture thereof A method of manufacturing fluted rolls, in particular for corrugating machines, comprises the steps of providing a fluted-roll blank which has a central longitudinal axis and a longitudinal direction that is parallel thereto and a surface; providing a grinding devic... | 06/13/2006 |
| 7018205 | Barbed endodontic instrument A process for producing an endodontic instrument by selectively hacking burr-like cutting projections or barbs into an elongated metal rod. A cylindrical hacking blade or other suitable blade having a convex cutting edge is preferably used to produce generally cup-s... | 03/28/2006 |
| 7014540 | Device for the precision working of planar surfaces A device for the precision working of planar surfaces, in particular for the plane finishing, has a tool (13), which has an outer and an inner operating surface (36, 44). These are designed like cup wheels, which fit into one another, and are rotatable... | 03/21/2006 |
| 6988859 | Drill bit and method for grinding a drill bit The invention relates to a drill bit (2), having main cutting edges (4a, 4b) which are connected together by a transversal cutting edge (6). An open surface (7) which extends into a flute (8) lies adjacent to e... | 01/24/2006 |
| 6979253 | Work drive for continuous generation gear grinding machine The gear train of a work drive system on a machine for the continuous grinding of gears, with which by means of non-integer transmission ratio between work spindle (3) and drive motor (4) as well as a high number of teeth on the cylindrical gear (6 | 12/27/2005 |
| 6968619 | Method for manufacturing endodontic instruments A method of manufacturing endodontic files involves a chemical milling process to yield endodontic files having a desired taper. The process involves the steps of (a) providing a metallic rod having a cutting portion with a polygonal cross section; (b) torsioning th... | 11/29/2005 |
| 6959553 | Systems and methods for designing threads of turbine engine connectors A connector that receives a threaded apparatus and reduces stresses induced from the treaded apparatus into the connector is described. The connector includes a top side, a bottom side, and an opening that extends therethrough. The opening is defined by an inner sur... | 11/01/2005 |
| 6958004 | Saw grinding apparatus with improved wear plates A saw grinder having improved wear plates for allowing the saw grinder carriage to move without having to overcome the resistance caused by contact of the saw grinder wear plates with the peripheral edge of a saw blade. The wear plates form two separate wear plate a... | 10/25/2005 |
| 6942551 | Method for forming a cutting edge along an edge portion of a blade stock A method for forming a cutting edge along an edge portion of a blade stock, wherein the method includes moving the blade stock with respect to a first cutting element rotating about a first rotational axis, the first rotational axis forming one of an acute angle and... | 09/13/2005 |
| 6923602 | Drill having construction for reducing thrust load in drilling operation, and method of manufacturing the drill A drill including a shank portion and a cylindrical body portion contiguous to each other. The cylindrical body portion includes (a) primary cutting edges and secondary cutting edges formed in its axially distal end portion such that each of the secondary cutting ed... | 08/02/2005 |
