Vibration suppressing trunk fingers for air cushion devices
US4383664A · kind A · utility
1Cited by
9References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 1, 1978 |
| Grant date | May 17, 1983 |
| Priority date | — |
| Expiry date | Sep 1, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60V3/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In an aircraft air cushion takeoff and landing system with a flexible trunk section in the form of a large expandable tube, having multiple air exhaust holes in the bottom thereof, encircling the bottom of the fuselage, a group of flexible finger-like protrusions beneath the forward section of the trunk. The downwardly extending finger-like protrusions make intermittent contact with the ground surface to suppress vertical vibrations in the trunk when the aircraft is hovering at ground level with the trunk inflated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.