Composite fastener and method of manufacture
US4863330A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1987 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | Jul 15, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S411/908
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An essentially cylindrical, light weight, composite fastener formed of an interior cylindrical core member, a cone-shaped molded insert plug member in the first or head end of the core, and an exterior cup-shaped overwrap member. Threads are formed at the second or threaded end of the fastener. All of the components are fabricated of an organic resin material with high-modulus fibers embedded therein. The fibers of the exterior member are long and continuous while the fibers of the other members are short and chopped. All the fibers are essentially parallel with the axis of the fastener. The resin material is preferably polyetheretherketone and the fibers are preferably graphite. Also disclosed is the method of manufacturing the above described fastener.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.