Two-sided abrasive tool
US6402603B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1999 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Dec 16, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D15/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An abrasive tool includes a first perforated sheet having a front surface and a back surface, and a second perforated sheet having a front surface and a back surface. A first layer of abrasive grains is bonded to the front surface of the first perforated sheet, and a second layer of abrasive grains is bonded to the front surface of the second perforated sheet. A core includes a first wall having an inner surface and an outer surface, a second wall having an inner surface and an outer surface, and a plurality of walls each connected to both the inner surface of the first wall and the inner surface of the second wall to space the first wall from the second wall and to form a plurality of hollow spaces within the core. The back surface of the first perforated sheet is disposed adjacent to the outer surface of the first wall and the back surface of the second perforated sheet is disposed adjacent to the outer surface of the second wall. The core is bonded to the first perforated sheet and the second perforated sheet by forming the core between the first perforated sheet and the second perforated sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.