Grinding/polishing cover sheet for placing on a rotatable grinding/polishing disc
US6019672A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 8, 1996 |
| Grant date | Feb 1, 2000 |
| Priority date | — |
| Expiry date | May 8, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D11/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A grinding/polishing cover sheet for placing on a rotatable grinding/polishing disc (3) consists of a thin foil (1), to which a coating (2) of a hard composite material has been applied through a stencil with or without an associated serigraphic membrane. The foil (1) is stiff in its own plane, but flexible perpendicularly thereto. The composite layer may consist of a matrix of artificial resin with one or more substances embedded therein, e.g. particles of one or more metals or ceramic materials, or fibers or particles of synthetic substances or graphite. The foil can be held in position on the grinding/polishing disc (3) by magnetism or by glueing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.