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| Number | Title | Issue Date |
| 7905691 | Machine tool having function of detecting contact between tool and workpiece An ultra-precision machine tool capable of accurately detecting a machining start position, in which movable axes are supported by fluid bearings. A workpiece is mounted on a rotary table of a B axis, and the rotary table is mounted on an X axis that is a linear mot... | 03/15/2011 |
| 6978814 | Method for manufacturing floor boards Method for manufacturing wooden floor boards having an antique and used look, the boards of planed new wood being subjected to a mechanical treatment for making damages in its circumferential surface, and after that to a chemical treatment of at least the entire top... | 12/27/2005 |
| 6776563 | Method of controlling elliptical vibrator An elliptical vibratory cutting apparatus includes a control mechanism which applies a sinusoidal voltage having a predetermined phase difference to piezoelectric elements. Flexure vibrations are accordingly generated in X and Y directions. The vibrations in the X d... | 08/17/2004 |
| 4597700 | Record engraving apparatus A record engraving apparatus having a table with a vacuum source for retaining thereon a master lacquer with portions thereon having pre-recorded disc-shaped record portions. The rotatable table is precisely positionable in all directions of the plane of ... | 07/01/1986 |
| 4587698 | Scarfing method and apparatus Cutters for removing excess weld material from elongated welds are moved by hydraulic cylinders into precise positions in proximity to the article having the welds to maintain the desired uniform thickness of the welds. The movement of the hydraulic cylin... | 05/13/1986 |
| 4488841 | Apparatus for machining workpieces to a predetermined shape An apparatus for machining a workpiece to a predetermined contour in accordance with a reference pattern comprises a cam mechanism which defines the reference pattern. The cam mechanism is mounted on a carrier assembly, on which is mounted a rotary workpi... | 12/18/1984 |
| 4322191 | Die finish-cutting machine Apparatus for making the finishing cut on the internal outline of a rough cut female die has two carriages one sliding in one direction upon the other, and the other carriage sliding upon a base at right angles to the first. A male punch comprising a temp... | 03/30/1982 |
| 4309926 | Method and apparatus for preparation of spherical hob for generation of gear A method for the preparation of a spherical hob for generation of a gear, which has a plurality of hob blades formed on the surface of a spherical hob blank, is disclosed. This method comprises forming spirally on the peripheral surface of the hob blank p... | 01/12/1982 |
| 4273170 | Precision reed trimming machine An apparatus trims woodwind instrument reed material for use in bassoons and the like in a precise and efficient manner. A cylindroid section of reed material is attached to the apparatus for rotation about its longitudinal axis. A cam, journalled in para... | 06/16/1981 |
