B61F 5/127
With fluid as a damping medium
Official title: {with fluid as a damping medium}
B61F5/127 (With fluid as a damping medium) appears on 22 US grants and 9 published applications in this corpus.
Search patents in B61F- Granted patents
- 22
- Published applications
- 9
- Assignees
- 20
- Inventors
- 44
- Latest grant
- 21 Jun 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 3 |
| 2021 | 2 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Pneumatic suspension for railway vehicle21 Jun 2022US 11,364,939 B2SpeedInnov
- Spring arrangement for a rail vehicle14 Dec 2021US 11,198,456 B2Siemens Mobility Austria GmbH
- Cylinder apparatus27 Jul 2021US 11,073,190 B2Hitachi Astemo, Ltd.
- Vibration control device for railroad vehicle7 Apr 2015US 8,997,950 B2Kayaba Industry Co., Ltd.
- Railway freight car truck26 Nov 2013US 8,590,460 B2Amsted Rail Company, Inc.
- Method for actuating a track conditioning unit or a wheel flange lubricating system20 Apr 2023US 2023/0123582 A1Siemens Mobility GmbH
- Cylinder apparatus2 Apr 2020US 2020/0102998 A1Hitachi Automotive Systems, Ltd.
- Pneumatic suspension for railway vehicle19 Mar 2020US 2020/0086895 A1SpeedInnov
- Spring Arrangement for a Rail Vehicle13 Feb 2020US 2020/0047776 A1Siemens Mobility GmbH
- Railroad vibration control device19 Oct 2017US 2017/0297591 A1KYB Corporation
Most cited
By later US patents
- Truck damping44US 3,995,720 AA. Stuck, Company · 1976
- Railway truck snubber43US 4,936,226 AA. Stucki Company · 1990
- Self-adjusting shock absorber having staged metering35US 4,284,177 AEfdyn Corporation · 1981
- Shock absorber unit26US 4,867,476 AAisin Seiki Kabushiki Kaisha · 1989
- Railway freight car truck15US 8,590,460 B2Amsted Rail Company, Inc. · 2013