Metal piercing fastener with optimally resilient securing member
US6817818B2 · kind B2 · utility
5Cited by
16References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2003 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Mar 21, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B15/08
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A metal piercing fastener includes an elongated body with an internal void and a securing member carried by the elongated body and adapted to grip and lock pierced work pieces together. The securing member is adapted to be accommodated in the internal void and is twisted about its longitudinal axis. The twisted securing member includes a substantial portion being thinned relative to the thickness of the elongated body to optimize resiliency of the securing member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.