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| Number | Title | Issue Date |
| 7198554 | Method of making valve guide having textured external surface A cylindrical valve guide having a roughened external surface texture from about 50 to about 100 microinches permits effective amounts of lubricating oil to become trapped or contained by such roughened external surface and thereby facilitates subsequent press fitti... | 04/03/2007 |
| 7101264 | Dressing wheel system An apparatus for providing a flat to stepped convex facing for grinding wheels used for the finished machining of parts, the apparatus including dressing wheels located only at the outer diameter of the Cubic-Boron-Nitride wheels to be dressed. ... | 09/05/2006 |
| 6921322 | Apparatus and methods for refinishing a surface in-situ The invention features a self-contained, portable apparatus for performing precision grinding operations on metal disks of up to, e.g., 54 inches in diameter. The apparatus can be attached to the surface of the disk to be refinished and is leveled using special prec... | 07/26/2005 |
| 6551177 | Forming device for bevelling A forming device (100) for bevelling includes a base (102), a rail (104), a workbench (106) and a bar (108). A pair of support arms (114) extends upwardly from the base. An axle (120) is received in pivot holes (118) defined in the support arms. One end o... | 04/22/2003 |
| 5832914 | Ingot trimming method and apparatus An apparatus for cutting a semiconductor ingot utilizing an inner-diameter saw. The apparatus includes a reference structure positioned on the saw at a predetermined distance from the saw blade and a template having a cut positioning portion and a referen... | 11/10/1998 |
| 5732690 | Apparatus for cutting a stone member so as to have a curved surface An apparatus for cutting a stone member (90) so as to have a curved surface including a cutting device (10) having a base member (12) which is movable in horizontal direction by an electric motor (23) and an endless wire saw (17) disposed on the base memb... | 03/31/1998 |
| 5272843 | Method and apparatus for truing a grinding wheel A method for truing a grinding wheel having a non-straight cylindrical grinding surface. In truing operation, a truing tool is caused to contact different portions of the grinding surface, and relative position of the truing tool is detected when the trui... | 12/28/1993 |
| 5184426 | Grinding wheel form defining device A grinding wheel form defining device defines a cross-sectional form of a grinding wheel for grinding works, the cross-sectional form including a grindstone axis. Data storage is provided for storing cross-sectional forms of workpieces which are final for... | 02/09/1993 |
| 5117588 | Semi-automatic dressing accessory A dresser apparatus for dressing a grinding wheel to a desired cross sectional shape, the apparatus including a dresser frame connected to a stationary dresser base, and a slider block slidably connected to the dresser frame. A follower frame is mounted t... | 06/02/1992 |
| 5072548 | Process and apparatus for finish grinding splines or gear teeth A process and apparatus for finish grinding splines or teeth on workpieces is disclosed which includes a device to check the cross-sectional shape of the grinding portion of the grinding wheel between grinding steps. When a grinding wheel is withdrawn fro... | 12/17/1991 |
| 5042205 | Process and apparatus for finish grinding splines or gear teeth A process and apparatus for finish grinding splines or teeth on workpieces is disclosed which includes a device to check the cross-sectional shape of the grinding portion of the grinding wheel between grinding steps. when a grinding wheel is withdrawn fro... | 08/27/1991 |
| 4899718 | Apparatus for truing grinding wheel A truing apparatus for an angle grinding wheel with two grinding surfaces is provided with an AE sensor for detecting the contact of a truing tool with each of the grinding surfaces. The truing tool is provided on a follow slide which is mounted on a trav... | 02/13/1990 |
| 4603677 | Orthogonal dressing of grinding wheels In dressing a grinding wheel having a non-cylindrical contour, the wheel is moved in a path corresponding substantially to the desired wheel contour by first and second CNC controlled slides while a single point diamond or diamond roll dresser is rotated ... | 08/05/1986 |
| 4527537 | Dressing tool for grinding wheels A diamond point type dressing tool with means for adjustment to dead center within a tolerance of &#b1;0.0001" is mounted to a control head assembly capable of producing horizontal, rotary and vertical movements of the tool either independently or simulta... | 07/09/1985 |
| 4291666 | Dressing tool for grinding wheels A diamond point type dressing tool is mounted in a control head assembly capable of producing horizontal and vertical movements of the tool either independently or simultaneously to reproduce from a remotely disposed associated template any desired contou... | 09/29/1981 |
| 4274388 | Method and apparatus for dressing grinding wheels Disclosed is a method and apparatus which uses a single cam surface to dress operating surfaces of grinding wheels having different configurations. A grinding wheel having an operating surface with a first configuration is positioned adjacent to the wheel... | 06/23/1981 |
| 4160438 | Profiling apparatus for a disk-like article having a cylindrical face and rounded corners A profile dressing apparatus for a grinding wheel wherein a dressing tool is moved, in radial and axial directions of the wheel, together with a non-extensible stylus tracing a full form template so as to form a cylindrical face and rounded corners on the... | 07/10/1979 |
| 4067310 | Wheel trimmer A trimmer for a grinding wheel comprising two templates operable sequentially to effect movement of a diamond trimming point to produce a cross-sectional curve on the grinding wheel in the form of a modified involute or the like.... | 01/10/1978 |
| 4004568 | Method and apparatus for dressing regulating wheels for centerless grinders Method and apparatus for automatically dressing a regulating wheel to the required curvature for a centerless grinding operation. A dressing wheel is mounted for rotation about an axis which is inclined to a reference axis. The regulating wheel is mounted... | 01/25/1977 |
