Abrasive disc
US9914199B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 9, 2014 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | Jul 1, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D2203/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An abrasive article including a disc including a central axis; a primary outer edge substantially coaxial with the central axis and having a circumferential length, L1; a secondary outer edge substantially coaxial with the central axis and coplanar with the primary outer edge, the secondary outer edge having a circumferential length, L2, wherein L2 is less than L1; and a structurally weakened portion extending substantially adjacent to the secondary outer edge. In an embodiment, the abrasive article further includes a shedable portion configured to rupture the structurally weakened portion when the shedable portion is removed from the abrasive disc. In another aspect, an abrasive article having an initial outer circumferential length, LI, and a length of deliberately exposable circumferential edge surface, LOE, wherein LOE is greater than LI.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.