Fiber reinforced/epoxy matrix composite helicopter rotor main hub plate
US4568244A · kind A · utility
8Cited by
9References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1983 |
| Grant date | Feb 4, 1986 |
| Priority date | — |
| Expiry date | Mar 22, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/32
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A helicopter hub main retention plate is described made up of graphite and glass fiber reinforced epoxy resin. The graphite fiber reinforcement is in-plane isotropically laid continuous graphite fibers and the glass fiber reinforcement comprises segments of fiberglass continuously and circumferentially wound around the areas of retention. Such materials and configuration provide crack resistance, damage tolerance, and integrity inspectability to the retention plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.