| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 219690140 | Dielectric composition and purification | 6 |
| 20080257867 | Apparatus and Method for Nano-Scale Electric Discharge Machining - An apparatus for nano-scale electric discharge machining of a conductive workpiece. In one embodiment, the apparatus includes a dielectric medium deposited on a surface of the workpiece to form a dielectric layer having a thickness, a positioning device capable of moving in three dimensions, an electrode having a nano-scaled tip and mounted to the positioning device, a power source electrically coupled with the electrode and the workpiece, and a controller in communication with the positioning device for generating a signal to cause the nano-scaled tip of the electrode to move to a desired position over the surface of the workpiece. In operation a biasing voltage over a threshold voltage is applied from the power source between the nano-scaled tip of the electrode and the surface of the workpiece such that an avalanche current is formed across the nano-scaled tip of the electrode and the surface of the workpiece to perform machining of the workpiece. | 10-23-2008 |
| 20090057274 | ELECTRIC DISCHARGE MACHINE AND ELECTRIC DISCHARGE MACHINING METHOD - In an electric discharge machining apparatus that machines a workpiece ( | 03-05-2009 |
| 20090277876 | ELECTRICAL DISCHARGE MACHINING APPARATUS AND ELECTRICAL DISCHARGE MACHINING METHOD - An electrical-discharge machining apparatus for machining a workpiece ( | 11-12-2009 |
| 20100133238 | Machining Fluid - A machining fluid is provided. A machining fluid for one of an electrical discharge machining process and an electrical discharge machining-polishing process, comprising a polymolecular powder, a hard particle and a carrier liquid, wherein a concentration of the polymolecular powder is lower than 500 g/L. | 06-03-2010 |
| 20150321277 | DIELECTRIC FLUID FOR ELECTRIC DISCHARGE MACHINING - A dielectric fluid composition for electric discharge machining is based on saturated hydrocarbons and contains an additive wherein the additive comprises at least one carboxylic acid or a glycerol ester of a carboxylic acid and at least one amine. Preferably, the additive comprises tall oil fatty acids (TOFA). The saturated hydrocarbons have a low content of aromatic hydrocarbons, which is less than 1% w/w. The additive is present in concentrations from 1 to 25%, preferably 5 to 15% by weight in the dielectric fluid. The additive is soluble in the saturated hydrocarbon basis. | 11-12-2015 |
| 20160067806 | ELECTRONIC DISCHARGE MACHINE - An electric discharge machine for changing a specific resistance of a working fluid by flowing the working fluid through a circulation line including an ion-exchange device, the electric discharge machine includes a specific resistance detection unit configured to detect a specific resistance of the working fluid, a flow time measuring unit configured to measure flow time of the working fluid into the ion-exchange device, and a determination unit configured to determine that the ion-exchange device reaches a life end, when change value of the specific resistance of the working fluid is out of the predetermined range. | 03-10-2016 |
