F16D 35/026
Actuated by a plurality of valves
Official title: {actuated by a plurality of valves; the valves being actuated by a combination of mechanisms covered by more than one of groups F16D35/022 - F16D35/025}
F16D35/026 (Actuated by a plurality of valves) appears on 35 US grants and 5 published applications in this corpus.
Search patents in F16D- Granted patents
- 35
- Published applications
- 5
- Assignees
- 17
- Inventors
- 56
- Latest grant
- 5 Mar 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Temperature-sensitive fluid fan clutch device5 Mar 2019US 10,221,902 B2Usui Kokusai Sangyo Kaisha Limited
- Electrical activation of a viscous clutch8 Dec 2009US 7,628,262 B2BorgWarner Inc.
- Liquid friction clutch15 Jan 2008US 7,318,510 B2AGCO Corporation
- Temperature sensing fan drive with fluid coupling24 Apr 2001US 6,220,416 B1Unisia Jecs Corporation
- Temperature sensitive fluid type fan coupling apparatus3 Oct 2000US 6,125,981 AUsui Kokusai Sangyo Kaisha Limited
- Fluid friction clutch23 Nov 2017US 2017/0335901 A1
- Temperature-sensitive fluid fan clutch device3 Aug 2017US 2017/0219024 A1Usui Kokusai Sangyo Kaisha Limited
- Electrical activation of a viscous clutch31 May 2007US 2007/0119677 A1BorgWarner Inc.
- Externally-controlled fluid coupling3 May 2007US 2007/0095627 A1Aisin Seiki Kabushiki Kaisha
- Liquid friction clutch17 Jan 2002US 2002/0005328 A1AGCO Corporation
Most cited
By later US patents
- Temperature-sensitive fluid type fan coupling apparatus38US 4,850,465 AUsui Kokusai Sangyo Kabushiki Kaisha · 1989
- Fluid friction clutch31US 4,629,046 ASueddeutsche Kuehlerfabrik Julius Fr. Behr GmbH & Co. KG · 1986
- Dual stage control for viscous fluid coupling30US 4,351,425 AEaton Corporation · 1982
- Valve member of temperature sensitive fluid fan coupling29US 4,846,331 AUsui Kokusai Sangyo Kaisha Limited · 1989
- Automatic thermal and speed controls for viscous fluid clutches26US 4,909,367 AKysor Industrial Corporation · 1990