Active tether control for a tethered multirotor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 15, 2023
Grant Date -
N/A
app pub date -
May 15, 2020
filing date -
May 15, 2020
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A control system and method for tensioning an active tether for a multirotor unmanned aerial system is provided. The control system includes a tensioning pulley and a tensioning spring. The tensioning spring is arranged to generate a variable tension force on the active tether. A transducer is connected adjacent to the tensioning spring to sense a linear displacement position of the tensioning pulley and to transmit a position signal to a controller. The position signal is proportional to the linear displacement position. A servomotor in communication with the controller receives a control signal from the controller in response to the position signal. The servomotor drives a cable reel. The cable reel is rotatably mounted in the frame for spooling the tether in response to rotation of the servomotor. The cable reel is rotated by the servomotor to maintain a predetermined tension on the tensioning spring.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2020 Application Filing Year
- B64F Class
- 545 Applications Filed
- 355 Patents Issued To-Date
- 65.14 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- B64F Class
- 0 % this patent is cited more than
- 2 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Feb 15, 2027 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Feb 15, 2031 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 15, 2035 |