Composite flexural yoke for helicopters
US4227857A · kind A · utility
25Cited by
18References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 19, 1977 |
| Grant date | Oct 14, 1980 |
| Priority date | — |
| Expiry date | Aug 19, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/43
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A yoke for coupling helicopter blades to a mast is provided. The yoke comprises a long oval loop of glass fibers embedded in a cured adhesive to form a solid strap. The side portions of the loop are reinforced with layers of bias ply glass fibers arranged in parallel planes. Structure is provided to couple to the side portions of the loop for attachment to the mast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.