Multi-zone grinding and/or polishing sheet
US7004823B2 · kind B2 · utility
21Cited by
16References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2001 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Sep 16, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D11/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to grinding/polishing sheet, which comprises 2 or more annular grinding/polishing zones (1-5) separated by intermediate annular distancing zones (6). One or more of the grinding polishing zones (1-5) comprises one or more non-continuous areas, that are part of an annular structure forming channels (8) in radial direction. The grinding/polishing sheet can be placed on a rotatable grinding/polishing disc for manual, automatic or semiautomatic preparations of materialographic samples. The invention also relates to a method for preparations of materialographic samples.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.