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In 1879, Auguste Bartholdi received design patent number 11,023 titled "Design for a Statue". It was for the Statue of Liberty.
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| Number | Title | Issue Date |
| 6015335 | Apparatus for dressing inside diameter saws Apparatus for dressing the cutting surfaces around a central opening of an annular inside diameter saw. The apparatus includes a base and a shaft mounted on the base for rotation on a longitudinal axis of the shaft. The shaft is adapted to be positioned a... | 01/18/2000 |
| 5833520 | Mirror polishing device A device for mirror-polishing the end of an optical fiber connector or similar elongate workpiece into a convex shape. A first grindstone polishes the workpiece while a second grindstone corrects the work surface of the first grindstone when it is deforme... | 11/10/1998 |
| 5632666 | Method and apparatus for automated quality control in wafer slicing An internal diameter saw, and in particular a method for operation which facilitates the maintenance of quality control of semiconductor wafers sliced from an ingot of source material. The internal diameter saw has a controller which monitors the deflecti... | 05/27/1997 |
| 5472371 | Method and apparatus for truing and trued grinding tool By grinding the grinding surface of a diamond grinding tool which is formed in a predetermined shape by securing diamond abrasive grains by bond circularly or flat with high accuracy by the processing type truing method, uniformly dressing the above bond ... | 12/05/1995 |
| 5144938 | Method and device for resharpening saws especially used for making semiconductor wafers A device and method for resharpening the cutting edge of saws used in particular in the centerhole sawing of semiconductor bars. It contains a sharpening system which consists of at least one elongate sharpening stone facing the cutting edge with its end ... | 09/08/1992 |
| 5133158 | Control system of grinding machine The control system is provided in a grinding machine composed of an axially movable rotational shaft having a grinding tool and being supported magnetically by electromagnets. The control system includes a target position modifying controller for modifyin... | 07/28/1992 |
| 5119599 | Diamond dressing unit for grinding wheels A dressing unit for advancing and retracting a spindle, having a diamond roll rotatably mounted thereon, wherein advancement of the spindle brings the diamond roll into contact with a grinding wheel for dressing the grinding wheel. The dressing unit compr... | 06/09/1992 |
| 5038746 | Precision grinding wheel dresser with molded bearing and method of making same A grinding wheel radius dresser including a dresser housing, a spindle having a tapered outer bearing surface, a drive means for rotating the spindle and a damage resistant bearing. The bearing includes a tapered inner bearing surface produced by molding ... | 08/13/1991 |
| 5000156 | Method and device for dressing an inner peripheral blade in a slicing machine A method and a device for dressing an inner peripheral blade used in a slicing machine which slices a silicone ingot or the like into thin wafers. In the method and device, the manner of dressing the inner peripheral blade can be determined from the caree... | 03/19/1991 |
| 4811722 | Process for sharpening cutting-off tools and cutting-off process Cutting-off tools whose cutting edge has a cutting layer with a bonded cutting grain are sharpened by sawing momentarily into a solid sharpening substance, in which case, in addition to a relative movement between cutting edge and solid material correspon... | 03/14/1989 |
| 4811521 | Truing device for hones A truing device that can form surfaces of hones, installed in a honing tool, into R-shapes (i.e. provided with rounded off edges or corners) with the same diameter as that of the honing tool or plane shapes. A truing tool is provided with a penetrating ho... | 03/14/1989 |
| 4539778 | Automatic dual compensation grinding wheel conditioner An improved method to surface condition a super-abrasive grinding wheel by intermittently moving the wheel to a stationary wheel conditioner unit mounted adjacent the grinding wheel with the conditioner unit having a consumable element engaged by the grin... | 09/10/1985 |
