Device for carrying and lifting loads and moving same by aerodynamic lifting
US4828205A · kind A · utility
11Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 16, 1987 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Nov 16, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/20
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The disclosure describes a device for carrying and lifting loads and moving ame by aerodynamic lifting, rotary-wing aerial propulsion, having two coaxial rotors of same diameters rotating at the same speed and in reversed direction through a double crown wheel system which is driven by oppositely disposed rollers. The device includes a crown wheel operatively connected to two rotors which are driven by two rollers, one of which being driven by one or two motors mounted on the body. The internal crown wheel has a hub enabling external blades to be mounted in superimposed relationship.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.