Did You Know...
...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7210986 | System and method for duplicating keys A key duplication system employs a modular key duplication attachment in combination with a high-speed, rotary powered tool and a profiled abrasive cutter. The attachment comprises a base, a carriage assembly movable relative to the base, a profiled stylus secured t... | 05/01/2007 |
| 6663474 | Apparatus and system of chemical mechanical polishing Apparatus of carrier in a chemical mechanical polishing equipment comprises a carrier module for holding a wafer face down. A retaining ring and conditioning module is coupled to the carrier module, which is used for protecting the wafer edge against cont... | 12/16/2003 |
| 5759092 | Apparatus for sharpening circular saw teeth An apparatus for sharpening the teeth of a circular saw comprises a rocking arm with a pawl to engage and actuate the teeth of an indexing ratchet wheel which is mounted coaxially with the circular saw for synchronous clockwise indexing, and a grinding wh... | 06/02/1998 |
| 5505750 | Infiltrant for metal bonded abrasive articles The present invention is an abrasive tool comprising abrasive particles, hard phase particles and a metal bond, wherein the metal bond comprises a near-eutectic copper phosphorus composition. The present invention further includes an abrasive tool compris... | 04/09/1996 |
| 4401699 | Surface processing method A surface processing apparatus and method for painting or otherwise treating variously contoured surfaces. A track includes an elongated pliant beam to which a bending apparatus is attached for the purpose of conforming it to the contour of the surface to... | 08/30/1983 |
| 4346534 | Apparatus for honing cycloidal surfaces An apparatus for abrading and finishing the inner surface of an unusual shape, for example the inner ring of a gerotor device, with a tool holder adapted to carry honing stones for movement along the part surface and driven by a mating part engaging a sta... | 08/31/1982 |
| 4309848 | Turbine blade tip finishing apparatus An apparatus for finishing the tips of turbine blades and the like is provided. The invention is especially useful on worn turbine blades which have been repaired by adding weld material. An abrasive first removes excess weld material with a reciprocating... | 01/12/1982 |
| 4294042 | Apparatus and method for grinding a helical surface on a flat blade Apparatus for grinding a helical cutting surface on a flat cutting blade. Prior art grinders are complex, difficult to operate and expensive to use. The present grinding machine comprises a stationary support (74), a grinding arbor (76), an adjustable cam... | 10/13/1981 |
| 4290237 | Fixture for use in forming cylindrical surfaces of accurate dimension A fixture capable of accurately manipulating a workpiece through a circular arc is provided. Various concepts useful in the formation of a cylindrical surface on the workpiece are developed. One fixture described includes a pair of opposing spherical surf... | 09/22/1981 |
| 4114664 | Apparatus for routing designs in panels Apparatus is provided for supporting and guiding a router for the purpose of routing an ornamental design in panels such as cabinet doors and drawer fronts. The router is attached to the end of a bar extending over the workpiece, the bar being slidable lo... | 09/19/1978 |
| 4044508 | Adjustable honing template A honing template comprising longitudinally extending fingers adapted to surround a hone and the ends of which carry template segments having inner abutment surfaces that are spaced to abut non abrasive surfaces that are in line with the stones when the s... | 08/30/1977 |
| 3932962 | Control apparatus for a machine for grinding the edges of a workpiece The invention concerns a control apparatus for machines designed to operate on a workpiece. The apparatus comprises a programming element consisting of a disc which has concentric tracks of varying transparency or reflectance; an optical scanner comprisin... | 01/20/1976 |
