Grip arranged on a pull shaft of a crystal pulling system
US6299684A · kind A · utility
4Cited by
5References
36Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2000 |
| Grant date | Oct 9, 2001 |
| Priority date | — |
| Expiry date | Aug 31, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T117/1072
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A grip for a crystal ingot mounted on a pull shaft has grip arms which cross each other. These grip arms have respective holding jaws on the side of the crystal ingot opposite the swivel bearing of the respective grip arm. Furthermore, a respective activating arm is provided on them on the side of the grip arm opposite the swivel bearing. As a result of this configuration, the grip is biased by the weight of a gripped crystal ingot in the closing direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.