Spiraled self-piercing rivet
US6802682B2 · kind B2 · utility
15Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2002 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | Jan 9, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49956
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention is a self-piercing rivet wherein the hollow shell has an external spiraling, wherein the spiraling is with respect to the axis of rotation of the hollow shell. Once installed in a stack of sheets, the spiraling prevents the riveted sheets from mutually separating and the rivet loosening with respect to the sheets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.