F15B 11/022
In which a rapid approach stroke is followed by a slower, high-force
Official title: {in which a rapid approach stroke is followed by a slower, high-force working stroke (F15B11/0325 takes precedence)}
F15B11/022 (In which a rapid approach stroke is followed by a slower, high-force) appears on 56 US grants and 65 published applications in this corpus.
Search patents in F15B- Granted patents
- 56
- Published applications
- 65
- Assignees
- 53
- Inventors
- 127
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 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 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 3 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 4 |
| 2008 | 1 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 2 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 0 | 10 |
| 2017 | 5 | 2 |
| 2018 | 3 | 6 |
| 2019 | 3 | 6 |
| 2020 | 10 | 6 |
| 2021 | 8 | 5 |
| 2022 | 2 | 3 |
| 2023 | 4 | 2 |
| 2024 | 2 | 2 |
| 2025 | 0 | 2 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydraulic drive system having a 2×2Q pump unit19 May 2026US 12,631,200 B2HMS-HYBRID MOTION SOLUTIONS GmbH
- Pneumohydraulic pressure intensifier12 May 2026US 12,624,710 B2WS Wieländer + Schill Engineering GmbH & Co. KG
- Synchronized hybrid clamp force controller for lift truck attachment17 Mar 2026US 12,577,091 B2Cascade Corporation
- Hydraulic actuator including a multi-head piston for hydraulic gearing19 Nov 2024US 12,145,719 B2Hamilton Sundstrand Corporation
- Synchronized hybrid clamp force controller for lift truck attachment19 Nov 2024US 12,145,828 B2Cascade Corporation
- Two-way quick cylinder and wood splitter9 Jul 2026US 2026/0194080 A1
- Oil circuit system, lifting device, electric jack, press, crane, and tire mounting/dismounting and transport apparatus12 Mar 2026US 2026/0070764 A1Snit Hydraulic Co., Ltd.
- Pneumohydraulic pressure intensifier22 Jan 2026US 2026/0022711 A1WS Wieländer + Schill Engineering GmbH & Co. KG
- Synchronized hybrid clamp force controller for lift truck attachment6 Mar 2025US 2025/0074757 A1Cascade Corporation
- Powder press having a hydraulic press drive30 Jan 2025US 2025/0033310 A1Dorst Technologies GmbH & Co. KG
Most cited
By later US patents
- Closed-system electrohydraulic actuator93US 7,051,526 B2Moog Inc. · 2006
- Fluid-actuated clamping apparatus and circuit28US 3,990,594 ACascade Corporation · 1976
- Bi-rotational, two-stage hydraulic system13US 6,886,332 B2Parker-Hannifin Corporation · 2005
- Low impact flow control device12US 5,349,151 ASavair Inc. · 1994
- High-speed driving method of pressure cylinder9US 7,062,832 B2SMC Corporation · 2006