F16D 2048/0269
Single valve for switching between fluid supply to actuation cylinder or draining
Official title: {Single valve for switching between fluid supply to actuation cylinder or draining to the sump}
F16D2048/0269 (Single valve for switching between fluid supply to actuation cylinder or draining) appears on 49 US grants and 43 published applications in this corpus.
Search patents in F16D- Granted patents
- 49
- Published applications
- 43
- Assignees
- 48
- Inventors
- 148
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 1 |
| 2006 | 2 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 4 |
| 2013 | 1 | 3 |
| 2014 | 3 | 1 |
| 2015 | 3 | 1 |
| 2016 | 3 | 5 |
| 2017 | 3 | 6 |
| 2018 | 2 | 3 |
| 2019 | 4 | 3 |
| 2020 | 5 | 3 |
| 2021 | 2 | 2 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 2 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pressure modulating clutch control assembly17 Mar 2026US 12,577,991 B2Caterpillar Inc.
- Method for controlling a hydraulic system27 Aug 2024US 12,071,963 B2Schaeffler Technologies AG & Co. KG
- Method for controlling a friction clutch, and torque transmission device comprising same16 Jan 2024US 11,873,870 B2Schaeffler Technologies AG & Co. KG
- Clutch engagement booster system28 Feb 2023US 11,592,066 B2
- Clutched power transmitting device with reduced lag time for actuation26 Apr 2022US 11,313,419 B2American Axle & Manufacturing, Inc.
- Pressure modulating clutch control assembly18 Dec 2025US 2025/0382995 A1Caterpillar Inc.
- Hydraulic assembly, friction clutch and method for operating a friction clutch22 Aug 2024US 2024/0280147 A1Schaeffler Technologies AG & Co. KG
- Method for controlling a hydraulic system16 Nov 2023US 2023/0366417 A1Schaeffler Technologies AG & Co. KG
- Method for controlling a friction clutch, and torque transmission device comprising same24 Nov 2022US 2022/0373042 A1Schaeffler Technologies AG & Co. KG
- Clutch Engagement Booster System11 Nov 2021US 2021/0348657 A1
Most cited
By later US patents
- Electrically controlled transmission soft shifter30US 4,674,613 AControlled Hydraulics, Inc. · 1987
- Control system for controlling the engagement of a pressure-operated actuator16US 4,535,879 ABorg-Warner Corporation · 1985
- Hydraulic coupling system14US 7,059,460 B2Ford Motor Company · 2006
- Clutch mechanism13US 5,598,910 AKabushikikaisha Equos Research · 1997
- Variable capacity torque transmitter11US 4,805,752 AGeneral Motors Corporation · 1989