Fan folded abrasive discs
US4893438A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1988 |
| Grant date | Jan 16, 1990 |
| Priority date | — |
| Expiry date | Sep 6, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S206/82
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A concatenation of circular abrasive discs each having a layer of abrasive material on a first surface, and means on a second surface for releasably attaching said discs to a drive member. The discs are attached to two adjacent discs at opposite edges by two narrow tabs along each edge spaced by at least 0.32 centimeter (1/8 inch) along the edge and generally equally spaced on opposite sides of a center line extending between the centers of the attached discs. Also the discs are separated between the tabs and the tabs are folded to position abrasive discs in a stack within a container with each abrasive disc in the stack having its layer of abrasive against the layer of abrasive of one adjacent disc, and its means for attaching adjacent the means for attaching of the other adjacent disc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.