Composite control cables and stabilizing tendons for aircraft applications and method for manufacture of same
US12037744B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2023 |
| Grant date | Jul 16, 2024 |
| Priority date | — |
| Expiry date | Dec 13, 2043 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD07B2205/3007
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Control and stabilizing cables and tendons for high altitude aircraft and airships having lightweight, high strength and low CTE are disclosed, along with a method and machine for fabrication of same. The cable is comprised of a fiber prepreg tow encased in a polymer sleeve with one bobbin at each end to facilitate connections. Consolidating the fiber prepreg tow along the length of the cable using high temperature shrink tubing, such as polyvinylidene fluoride (PVDF), allows for eliminating the twisting of the fiber prepreg tow, thus reducing the number of wraps around the bobbins. Eliminating the twists in the fiber prepreg tow also reduces the length of fiber needed, and therefore the overall change in length of the control cable with temperature variations is reduced. Additional cable strength can be achieved by adding and holding significant tension on the fiber prepreg tow by applying weight during the curing process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.