Dop
| 专利类型 | 发明公开 | 法律事件 | |
| 专利有效性 | 无效专利 | 当前状态 | |
| 申请号 | EP90310087.3 | 申请日 | 1990-09-14 |
| 公开(公告)号 | EP0418101A3 | 公开(公告)日 | 1991-12-27 |
| 申请人 | DE BEERS INDUSTRIAL DIAMOND DIVISION (PROPRIETARY) LIMITED; | 申请人类型 | 企业 |
| 发明人 | Segal, Thomas; Harris, Michael Alexander; Tolkowsky, Gabriel Shrage; | 第一发明人 | Segal, Thomas |
| 权利人 | DE BEERS INDUSTRIAL DIAMOND DIVISION (PROPRIETARY) LIMITED | 权利人类型 | 企业 |
| 当前权利人 | DE BEERS INDUSTRIAL DIAMOND DIVISION (PROPRIETARY) LIMITED | 当前权利人类型 | 企业 |
| 省份 | 当前专利权人所在省份： | 城市 | 当前专利权人所在城市： |
| 具体地址 | 当前专利权人所在详细地址：Debid House, Corner Amethyst Street & Crownwood Road, Theta Johannesburg, Transvaal ZA | 邮编 | 当前专利权人邮编： |
| 主IPC国际分类 | B24B9/16 | 所有IPC国际分类 | B24B9/16 ; B25B1/22 ; B28D7/04 |
| 专利引用数量 | 3 | 专利被引用数量 | 0 |
| 专利权利要求数量 | 0 | 专利文献类型 | A3 |
| 专利代理机构 | Senior, Alan Murray | 专利代理人 | |
| 摘要 | The dop has a body (10) and a jaw assembly (12) that has two opposed, adjustably spaced jaws (58). The jaws (58) of the jaw assembly (12) are used to grip a gemstone (69) between them for polishing purposes. The body (10) is attached to a supporting structure and the jaws (58) can be pivoted relative to the body (10), to bring the stone (69) to the desired orientation, about two mutually orthogonal axes. Such pivotal movement is achieved using worm gear mechanisms (28,30; 48,50) which lead to accurate orientation of the stone (69). | ||
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