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| Number | Title | Issue Date |
| 7811154 | Grinding apparatus A grinding apparatus for grinding workpieces includes two clamping rods and a base. Each of the two clamping rods has a first end and an opposite second end. The first ends are opposite to each other for clamping workpieces therebetween. The base includes a receivin... | 10/12/2010 |
| 7431637 | Saw-setting machine for saw chain It is to provide a saw chain sharpener such that while a saw chain is clamped at both ends by a holding plate, which is supported forward of a handy type electric motor, so as to stabilize its sharpening posture, a grinding tool such as a round rod-shaped grinding t... | 10/07/2008 |
| 7404754 | CNC tungsten steel cutting machine A CNC tungsten steel cutting machine suitably used to cut a metal material, such as tungsten carbide steel, includes an operational platform, a cutting mechanism, a feeding mechanism, a delivering mechanism, and a control panel. When a metal material to be cut is re... | 07/29/2008 |
| 7287445 | Apparatus for precision steeling/conditioning of knife edges An apparatus for manually steeling or conditioning the edge of a knife blade comprises a precision angle guide attached to a manual sharpening steel. The angle guide establishes a guiding surface that provides for sustained sliding or rolling contact with the face o... | 10/30/2007 |
| 7258594 | Method and device for centerless cylindrical grinding During centerless cylindrical grinding, attention must be paid to the fact that the workpiece (3) is placed in a very specific position between the grinding wheel (1), the regulating wheel (2) and the support guide (4). The optimal positi... | 08/21/2007 |
| 7235004 | Precision means for sharpening and creation of microblades along cutting edges A knife-edge conditioning apparatus comprises at least one precision angled knife guide with one face of the knife blade maintained in sustained sliding or rolling contact and which guides the elongated edge of the blade into sustained contact with the hardened surf... | 06/26/2007 |
| 7226340 | Grinding machine The grinding machine (10) according to the invention serves in particular for the machining or production of tools. It comprises a machine bed 11 and a workpiece spindle (14) arranged thereon, which receives the workpiece (13) to be machi... | 06/05/2007 |
| 7220161 | Automatic sharpening system for ice-skates A method is for using a skate-grinding device. The method provides an automatic sharpening system (10) that has grip members (14, 16) and a grinding wheel (28). A blade (18) of a skate (20) is inserted into a groove (19). Th... | 05/22/2007 |
| 7138654 | Chemical-mechanical polishing proximity correction method and correction pattern thereof A chemical-mechanical polishing (CMP) proximity correction method for polishing a wafer is provided. The wafer has a polish area and a protected area. The method includes forming a material layer over the wafer to cover the polish area and the protected area and the... | 11/21/2006 |
| 7121932 | Portable drill sharpener A portable drill sharpener includes a casing, a sand-wheel, a positioning device, a first grinding unit and a second grinding unit, a holding member for positioning a drill to be ground, a first adjustment unit and a second adjustment unit respectively connected to ... | 10/17/2006 |
| 7101269 | Cylindrical grinding machine Disclosed is a cylindrical grinding machine of the type that a workpiece support device composed of a work head and a foot stock is mounted on a forward upper portion of a bed while a wheel head unit composed of a slide base and a wheel head is mounted on a rear upp... | 09/05/2006 |
| 7094136 | Grinding tool for edge circular processing A pair of profile wheels 14, 18 in which concavely shaped grinding surfaces 141, 181 asymmetrical to each other are opposed to each other at right angle so as to form a concavely shaped grinding surface having a substantially semi-circular section, a g... | 08/22/2006 |
| 7089835 | System and method for forming a non-rotationally symmetric portion of a workpiece A method and control system for forming workpiece surfaces with at least a portion being non-rotationally symmetric (i.e., axis asymmetric) is provided. In one aspect, a slow tool servo system is provided to fabricate a surface having at least an axis asymmetric por... | 08/15/2006 |
| 7033247 | Electric sharpener The invention relates an electric sharpener, comprises a main frame, a main shaft, a motor, a transmission wheel, a grinding stone, and an electric control circuit. The motor is mounted on an angular frame which in turn is mounted on the main frame. The transmission... | 04/25/2006 |
| 6932683 | Knife sharper having cutting edge protective structure A knife sharpener includes a housing having one or more access slots for receiving knife blades to be sharpened, one or more grinding wheels rotatably received in the housing and disposed close to the access slots of the housing for grinding and sharpening the cutti... | 08/23/2005 |
| 6918823 | Double grinding wheel A device for processing welding electrodes includes a driving motor, a shaft, a housing and a first grinding wheel rotatably mounted on the shaft. The first grinding wheel is driven by the driving motor through the shaft. The lateral openings formed in the housing a... | 07/19/2005 |
| 6910959 | Fixture for a grinding or polishing wheel A fixture (1) for guidance of a tool having a cutting edge with respect to the periphery of a rotating grinding or polishing wheel (2), comprising a frame structure that runs along the periphery (6) of the wheel and has a guide formed as a slot ... | 06/28/2005 |
| 6848971 | Electronic bevel angle indicator for a hollow grinder An electronic hollow grinder bevel angle indicator wherein a microprocessor calculates the grinding bevel angle that will be obtained when a tool is placed flat upon a tool rest and presented to the periphery of a rotating grinding wheel. The calculated bevel angle ... | 02/01/2005 |
| 6702659 | Profiling device A device is provided to assist in the cutting, mitrering, chamfering, and similar operations of ceramic and other tiles. The device can be readily attached to, and subsequently removed from, a cutting implement, such as an angle grinder or a circular saw ... | 03/09/2004 |
| 6676494 | Drill bit grinder structure A drill bit grinder structure includes: a seat body having a housing, an arched sideboard with a predetermined curvature being disposed on one side of the housing, a slide slot with a predetermined length being formed on the arched sideboard; a fitting me... | 01/13/2004 |
| 6645054 | Portable drum sander A portable drum sander, including a base, a drum mounted for rotation on the base for carrying at least one grade of sand paper on a peripheral surface thereof, a feed table carried on the base and having a slot therein through which the drum is exposed f... | 11/11/2003 |
| 6623340 | Grinding jig A grinding jig (5) is to be attached on an edge tool (4) to be ground on a rotating grindstone (2) in a grinding machine (1), having a support means (3) in the vicinity of the grindstone. The jig is split by having a base portion (6) and two parallel open... | 09/23/2003 |
| 6450741 | Apparatus for deburring, chamferring and beveling workpieces A fixture for use with a rotary cutting tool for deburring, chamferring or beveling a work piece utilized with a drill comprises a member having opposite sides with a recess defined a first of the sides by two surfaces at right angles to each other to def... | 09/17/2002 |
| 6113477 | Drill abrasive apparatus A drill abrasive apparatus, capable of grinding a candle-shaped drill requiring Z-type thinning, has a whetstone (1), a drill holder (5), a drill adjustable pedestal (2), a drill abrasive pedestal (3) and a drill thinning pedestal (4). An abrasive surface... | 09/05/2000 |
| 5924915 | Hand held self aligning shaft grinder A hand-held centerless grinding apparatus for grinding and refinishing convex, concave and flat surfaces. When a surface has been grooved or otherwise indented, the damaged surface can be built up, then must be ground back to the original configuration. A... | 07/20/1999 |
| 5906538 | Cutting apparatus with abrasive wheel A cutting apparatus which cuts, shaves, splits and the like small work pieces, such as metal or plastic articles at desired angles and/or along straight lines. The cutting apparatus includes a motor unit with an abrasive wheel mounted on a portable planar... | 05/25/1999 |
| 5725419 | Apparatus for removing excess material from workpieces An apparatus for removing excess material, such as spur bits or sprues, from workpieces, provided with a support surface having a guide channel therein for receiving excess material therein for guiding to a rotatably driven removal tool having a periphera... | 03/10/1998 |
| 5718030 | Method of dry abrasive delabeling of plastic and glass bottles A dry abrasive delabeling apparatus for both plastic and glass bottles, sometimes called a label stripper, in which the bottles are fed by an in-feed starwheel to a circular starwheel which rotates the bottles slowly. Within the starwheel are wire bristle... | 02/17/1998 |
| 5591069 | Portable blade sharpener for ice skates An improved ice skate blade sharpening system utilizing a powered rotating grinding wheel. The system has an adjustable guide for preventing canting and twisting of the blade as it is sharpened, and applies a constant cutting pressure to the edge irrespec... | 01/07/1997 |
| 5567195 | Method and apparatus for grinding bars A method and apparatus for initially taking an individual bar from a supply of bars and placing it on an entry conveyor while preventing movement of the remaining bars. Other mechanisms are provided for adjusting the entry conveyor to accommodate the diam... | 10/22/1996 |
| 5536197 | Automatic machine for the production of rounded bevels at the corners of flat sheets An automatic machine for the production of rounded bevels at the corners of flat sheets, comprising a device (20) for the support and transfer of a sheet (3), hinged to fixed frame (10) of the machine and capable of rotating in relation thereto around an ... | 07/16/1996 |
| 5518438 | Apparatus and method for grinding needle workpieces An apparatus for grinding tapered points on needles is disclosed. The apparatus has a frame and a transport associated with the frame for transporting a plurality of needles. The transport has a predetermined curvature and a feeder is mounted adjacent the... | 05/21/1996 |
| 5480345 | Knife sharpener This invention relates to a knife sharpener and more particularly to a knife sharpening device wherein the knife is clamped in a fixed position on a table or platform and the knife sharpening or grinding device is moved along the edge of the knife to be s... | 01/02/1996 |
| 5468173 | Automatic deburring machine An automatic deburring machine used for the edge deburring of hard components. This automatic deburring machine, utilizing several abrasive flap wheels, causes the wheels to penetrate the internal and external edges by combining the three axis motion of t... | 11/21/1995 |
| 5397262 | Knife grinder An improved knife grinder is desinged to have a motor transmission axle which transmits one or two units of wheel axle with its angles which are facing one another and entend slightly upward and outward. A base is fixed onto the vertical bottom surface wh... | 03/14/1995 |
| 5394652 | Sanding wheel for raised wooden panels A sanding wheel modified to incorporate a rub collar that provides a guide surface for sanding raised wooden panels. The modified sanding wheel was specifically designed and is particularly useful for accurately and quickly sanding arched panels. The whee... | 03/07/1995 |
| 5373666 | Grinding wheels for the machine working of marble and granite A shaped diamond wheel, at certain height, determined by both the type of grinding wheel which is being used and the working stage, is provided with a rotating feeling pin, consisting of a metal element a few millimeters high which projects for few hundre... | 12/20/1994 |
| 5347763 | Polishing apparatus There is disclosed a polishing apparatus utilizing a gel material as the polishing tool, in which the gel material is rotated in the vicinity of a surface to be polished, or is given rotating and rocking motions in direct contact with the surface to be po... | 09/20/1994 |
| 5274958 | Sharpening system especially suitable for spiral meat slicing blade The present invention provides a blade sharpening system in which a cylindrical drum abrasive is fitted snugly about a rotatable drum. The blade is run across a guide plate which is maintained at a proper orientation with respect to the drum as the edge o... | 01/04/1994 |
| 5189848 | Blade sharpening apparatus, blade guide and sharpening method The present invention provides an adjustable blade sharpening apparatus for sharpening cutting blades by controlling the positioning of the blade relative to the grinding wheel to produce multiple facets on the cutting blade with a substantially burr-free... | 03/02/1993 |
