Payload delivery system with spool braking device
US11214371B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2019 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Jan 4, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64U2101/67
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An apparatus directed to unmanned aerial vehicles including (i) a support structure, (ii) at least one shaft coupled to the support structure via at least one swing arm that allows upward movement, and restricts downward movement, of the at least one shaft from a resting position, (iii) a spool shaped so as to rest on the at least one shaft when the at least one shaft is in the resting position, and wherein the spool is operable to unwind a tether coupled to a payload, and (iv) at least one fan coupled to the at least one shaft, wherein rotation of the spool when unwinding the tether also causes rotation of the at least one fan coupled to the at least one shaft, thereby controlling a descent rate of the payload.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.