Abrasive article having a non-uniform distribution of openings
US10076820B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 7, 2017 |
| Grant date | Sep 18, 2018 |
| Priority date | — |
| Expiry date | Apr 7, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D2203/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An abrasive article having a plurality of apertures arranged in a non-uniform distribution pattern, wherein the pattern is spiral or phyllotactic, and in particular those patterns described by the Vogel equation. Also, provided is a back-up pad having a spiral or phyllotactic patterns of air flow paths, such as in the form of open channels. The back-up pad can be specifically adapted to correspond with an abrasive article having a non-uniform distribution pattern. Alternatively, the back-up pad can be used in conjunction with conventional perforated coated abrasives. The abrasive articles having a non-uniform distribution pattern of apertures and the back-up pads can be used together as an abrasive system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.