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| Number | Title | Issue Date |
| 6994081 | Apparatus for roughing the surfaces of casted concrete block A casted concrete block surface-roughing machine having an in-line conveyor displaceable over a stationary horizontal support surface for slidingly supporting a lower surface of concrete blocks displaced thereon by the conveyor. At least two pairs of spaced-apart ve... | 02/07/2006 |
| 6979247 | Method and apparatus for grinding cam with re-entrant surface A workpiece W and a grinding wheel G are relatively moved in Z and X-axis directions perpendicular to each other, the rotational axis of the grinding wheel is inclined relative to the X-axis, and the grinding wheel is composed of a taper section Ga having a generati... | 12/27/2005 |
| 5183026 | Method and apparatus for dressing an angular grinding wheel A grinding machine having an angular type grinding wheel and a dressing apparatus therefor. The grinding wheel is formed with first and second grinding surfaces usable for grinding a cylindrical surface and shoulder end surface of a workpiece, respectivel... | 02/02/1993 |
| 4984390 | Grinding disc dressing apparatus A grinding disc dressing apparatus for dressing an active grinding side or surface of a grinding disc of a surface grinding machine includes feed means for moving a dressing roll between an outer periphery of the grinding disc and the central portion of t... | 01/15/1991 |
| 4936051 | Method and device for trimming grinding wheels In order to eliminate the need, during operation, to continually redefine the grinding line (SL 2) between the trimming wheel (12) and the gripping wheel (10), and the need to re-zero the C-axis after each trimming step by the grinding wheel (12) on the g... | 06/26/1990 |
| 4805585 | Radius dressing apparatus A dresser carried on a pivotal dresser holder arm is adjustable in position relative to the pivot axis of the arm by a computer control unit using closed loop servo feedback from a position transducer to successively dress different radii and/or shapes (c... | 02/21/1989 |
| 4799472 | Method of and arrangement for dressing grinding wheels Dressing of grinding wheels is performed by a dressing tool which is displaced first to be brought into contact with a grinding wheel and the contact is determined by measuring an electrical voltage of a piezoelectric element connected with the dressing t... | 01/24/1989 |
| 4784108 | Grinding wheel dressing apparatus An apparatus for dressing a grinding wheel which utilizes a pair of cutting tools which are mounted in an in-line facing relationship with the grinding wheel to be located between the tools. These tools are to be moved to simultaneously engage the side wa... | 11/15/1988 |
| 4535573 | Profiling apparatus for a grinding wheel in a gear grinding machine A grinding wheel contains two ring-shaped flanks and is axially displaceable by an axial drive. A radial slide is radially adjustably displaceable relative to the grinding wheel by a radial drive. Both of the displacements in axial and radial direction ca... | 08/20/1985 |
| 4522188 | Gimbal-mounted dressing device for grinding machine A two point diamond dresser is suspended from a gimbal mechanism for swinging about two orthogonal axes. A cam mechanism having one cam and two cam followers is provided to impart a swinging movement to the dresser about one pivot axis when the cam rotate... | 06/11/1985 |
| 4480626 | Device for dressing grinding wheels A device for dressing one or both side faces of a circular grinding wheel. The device provides for movement of a dressing tool in an arcuate path across the face of the grinding wheel, and simultaneously, toward and away from the grinding wheel.... | 11/06/1984 |
| 4011689 | Grinding machine A grinding machine incorporating a pair of cup-shaped grinding wheels. Each grinding wheel has an annular outer beveled surface, and the blade to be sharpened is inserted between the mating beveled grinding surfaces. Each grinding wheel can be moved in an... | 03/15/1977 |
