F16D 27/08
With friction surfaces arranged externally to the flux
Official title: with friction surfaces arranged externally to the flux
F16D27/08 (With friction surfaces arranged externally to the flux) appears on 19 US grants and 16 published applications in this corpus.
Search patents in F16D- Granted patents
- 19
- Published applications
- 16
- Assignees
- 14
- Inventors
- 45
- Latest grant
- 25 Oct 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 4 |
| 2016 | 3 | 1 |
| 2017 | 2 | 1 |
| 2018 | 3 | 2 |
| 2019 | 1 | 1 |
| 2020 | 2 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
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- Synchronized electromagnetic single plate clutch system20 Jan 2022US 2022/0018401 A1ROLLS-ROYCE plc
- Synchronized electromagnetic single plate clutch system9 Sep 2021US 2021/0277961 A1ROLLS-ROYCE plc
- Two-speed accessory drive pulley2 Jan 2020US 2020/0003113 A1Schaeffler Technologies AG & Co. KG
- An electromagnetic clutch of a brushless control-by-wire centrifugal ball arm engagement device26 Dec 2019US 2019/0390720 A1Shandong University of Technology
Most cited
By later US patents
- Torque and air gap adjustment mechanism for spring engaged brake or clutch22US 4,982,825 ASepal · 1991
- Low inertia ball ramp actuator13US 5,713,446 AEaton Corporation · 1998
- Ball ramp inertia brake oil blocking ring13US 6,250,445 B1Eaton Corporation · 2001
- Clutch with two pressure plates and one stop6US 4,895,051 ADeere & Company · 1990
- Electromagnetic clutch structure in driving force distribution system5US 6,637,572 B2Honda Giken Kogyo Kabushiki Kaisha · 2003