F15B 15/221
For accelerating the stroke
Official title: {for accelerating the stroke, e.g. by area increase}
F15B15/221 (For accelerating the stroke) appears on 11 US grants and 7 published applications in this corpus.
Search patents in F15B- Granted patents
- 11
- Published applications
- 7
- Assignees
- 11
- Inventors
- 21
- Latest grant
- 25 Apr 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 2 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 2 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Pneumatic actuator end cap having an integral volume booster25 Apr 2023US 11,635,098 B2Fisher Controls International LLC
- Piston assembly having reduced extend force and reduced displacement volume7 Sep 2021US 11,111,936 B2Roller Bearing Company of America, Inc.
- Accelerator-equipped pneumatic cylinder15 Jun 2021US 11,035,388 B1Chen Sound Industrial Co., Ltd.
- Cylinder acceleration mechanism7 Jan 2020US 10,527,067 B2Taguchi Industrial Co., Ltd.
- Fluid pressure cylinder with boosting mechanism9 Apr 2019US 10,253,791 B2SMC Corporation
- Pneumatic actuator end cap having an integral volume booster24 Mar 2022US 2022/0090612 A1Fisher Controls International LLC
- Piston assembly having reduced extend force and reduced displacement volume25 Feb 2021US 2021/0054931 A1Roller Bearing Company of America, Inc.
- Cylinder acceleration mechanism13 Sep 2018US 2018/0258962 A1Taguchi Industrial Co., Ltd.
- Fluid pressure cylinder with boosting mechanism1 Feb 2018US 2018/0031011 A1SMC Corporation
- Three-stage hydraulic actuator and method of operating the same4 Jun 2015US 2015/0152896 A1Agency for Defense Development
Most cited
By later US patents
- Pneumatic actuator for a stores carriage and ejection system28US 6,481,669 B1Flight Refuelling Limited · 2002
- Dual-purpose ejector for aircraft load jettisoning mechanism13US 4,088,287 AR. Alkan & Cie · 1978
- Soft-start piston actuator5US 6,708,914 B2Automotive Systems Laboratory, Inc. · 2004
- Meterless hydraulic system having multi-actuator circuit2US 9,051,714 B2Caterpillar Inc. · 2015
- Fluid pressure actuator and actuator system1US 5,941,158 ALucas Industries Limited · 1999