B64C 27/635
Specially for controlling lag-lead movements of blades
Official title: specially for controlling lag-lead movements of blades
B64C27/635 (Specially for controlling lag-lead movements of blades) appears on 30 US grants and 31 published applications in this corpus.
Search patents in B64C- Granted patents
- 30
- Published applications
- 31
- Assignees
- 14
- Inventors
- 72
- Latest grant
- 23 Jul 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 0 | 3 |
| 2015 | 3 | 1 |
| 2016 | 3 | 2 |
| 2017 | 1 | 7 |
| 2018 | 2 | 3 |
| 2019 | 6 | 7 |
| 2020 | 7 | 0 |
| 2021 | 2 | 1 |
| 2022 | 3 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
By publication year.
Recent patents
- Propulsion assembly23 Jul 2024US 12,043,398 B2Textron Innovations Inc.
- Rotor systems having lead-lag damper cooling31 Jan 2023US 11,565,802 B2Textron Innovations Inc.
- Hydroelastic damper, and an aircraft6 Dec 2022US 11,518,503 B2Airbus Helicopters
- Rotor hub fairing with integral cooling capabilities2 Aug 2022US 11,401,040 B2Textron Innovations Inc.
- Spring system varying stiffness with applied force for use in a torque dependent rotor of a rotary wing aircraft8 Mar 2022US 11,267,569 B2FLIR Unmanned Aerial Systems AS
- Propulsion assembly10 Oct 2024US 2024/0336366 A1Textron Innovations Inc.
- Propulsion assembly8 Dec 2022US 2022/0388672 A1Bell Textron Inc.
- Rotor Systems having Lead-Lag Damper Cooling21 Jul 2022US 2022/0227486 A1Textron Innovations Inc.
- Rotor hub fairing with integral cooling capabilities23 Sep 2021US 2021/0291989 A1Bell Textron Inc.
- Hydroelastic damper, and an aircraft5 Dec 2019US 2019/0367163 A1Airbus Helicopters
Most cited
By later US patents
- Dual mode rotor hub assembly12US 9,126,680 B2Textron Innovations Inc. · 2015
- Helicopter rotor7US 8,496,435 B2Agusta S.p.A. · 2013
- Rotor hub with blade-to-blade dampers attached to the pitch change axis6US 10,773,798 B2Bell Textron Inc. · 2020
- Rotorcraft rotor fitted with lead-lag dampers housed in sleeves connecting blades to a hub of the rotor6US 9,284,051 B2Airbus Helicopters · 2016
- Rotary dampers, systems, and related methods6US 9,879,753 B2Lord Corporation · 2018