Fail-safe tail rotor control system
US4540141A · kind A · utility
10Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1983 |
| Grant date | Sep 10, 1985 |
| Priority date | — |
| Expiry date | Sep 22, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20408
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Helicopter tail rotor control system having a quadrant (18) with two flexible cables (20,22) wrapped around the quadrant surface in opposing directions and each attached to the quadrant at a point (42,60) opposite to initial contact of the cable with the quadrant, and spring extension (44, 62) from each cable passing around a pulley (46) and attached to the quadrant at a point on a radial line with the cable attachment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.