Did You Know...
...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6910403 | Method for cutting semiconductor wafer protecting sheet To cut a protecting sheet adhered over the obverse of a wafer, an inclination angle of a cutting tool is adjusted according to a form of a chamfered part of the wafer and a finishing thickness of the wafer so that the protecting sheet is cut into the required minimu... | 06/28/2005 |
| 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 |
| 4945888 | Method of dressing grinding wheels The sharpness profile of the working surface of a grinding wheel is determined in the course of a dressing operation by controlling the velocity of movement of the point of contact between the dressing tool and the grinding wheel. The velocity of such mov... | 08/07/1990 |
| 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 |
| 4489520 | Machine tool attachment A base is securable to the work surface of a machine tool. A centering element, projecting from the base, locates and braces one of a pair of opposed centers in a workpiece while the other center is lapped by a lapping tool carried by the rotatable tool h... | 12/25/1984 |
| 4480410 | Precision center lapping apparatus and method A center lapping apparatus for precisely lapping center holes in opposite ends of the workpiece prior to outside diameter grinding of the workpiece includes a conical lapping stone and a dressing apparatus that supports a dressing stone for periodically d... | 11/06/1984 |
| 4448184 | Sine bar grinding wheel dresser A wheel dresser having a diamond point carried by a slider supported on an arm swung from the top of a column support and adapted to have its lower end swing into engagement and rest against a gage block supported against the column. The arm has a cylinde... | 05/15/1984 |
| 4262649 | Sine bi-angle wheel dresser A sine bi-angle wheel dresser capable of accurately dressing a surface grinder's wheel on both sides without disturbing the initial set-up on the magnetic table. The dresser comprises a base which supports a carrier holder having the shape of an isosceles... | 04/21/1981 |
| 4018207 | Device for dressing grinding wheels A device for dressing a grinding wheel to a desired precise angle. The device includes a body, preferably in the form of a rectangular block, presenting mutually perpendicular mounting faces. A spindle is journaled in the body for rotation about an axis p... | 04/19/1977 |
| 3999332 | Mechanism for truing disk-like abrasive tools A truing mechanism for use in a straight bevel gear cutting machine tool operating on a profile generating principle with the use of a single disk-like abrasive tool, said mechanism being mounted on a carriage with said abrasive tool and provided with tru... | 12/28/1976 |
