Abrasive and polishing sheets
US4437269A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 5, 1980 |
| Grant date | Mar 20, 1984 |
| Priority date | — |
| Expiry date | Aug 5, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D11/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An abrasive or polishing sheet has indicia carried on its rear face overlaid by a translucent textile material providing a surface engageable by hooks, the material being adhered to the said indicia and their information content remain discernible through the said material. The sheet can be secured to a hooked surface of a carrier unit and can be removed therefrom and reused. The grit size indication is provided without needing to print the fabric. The textile material is a brushed, knitted nylon having less than 20 loops or curls per square mm. A carrier pad has a material to which the sheet can be attached. The material of the pad has inclined stalks extending therefrom which have unhooked ends. These features result in a very low peel strength between sheet and pad.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.