Method and apparatus for lifting a payload
US11993375B2 · kind B2 · utility
1Cited by
5References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 11, 2022 |
| Grant date | May 28, 2024 |
| Priority date | — |
| Expiry date | Mar 11, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64U50/34
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for lifting a payload wherein a first mechanical-rotor is driven by an internal combustion engine. A portion of the mechanical work developed by the internal combustion engine is used to generate electrical power, which is either stored in a battery or used to power an electric motor that drives a second rotor. Thrust developed by the mechanical and electrical rotors is directed downward to provide lift for the payload.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.