F04B 9/06
The means including spring- or weight-loaded lost-motion devices
Official title: the means including spring- or weight-loaded lost-motion devices
F04B9/06 (The means including spring- or weight-loaded lost-motion devices) appears on 79 US grants and 51 published applications in this corpus.
Search patents in F04B- Granted patents
- 79
- Published applications
- 51
- Assignees
- 69
- Inventors
- 169
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 7 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 3 |
| 2014 | 1 | 5 |
| 2015 | 2 | 2 |
| 2016 | 2 | 3 |
| 2017 | 1 | 5 |
| 2018 | 3 | 5 |
| 2019 | 5 | 3 |
| 2020 | 6 | 5 |
| 2021 | 1 | 2 |
| 2022 | 3 | 0 |
| 2023 | 1 | 5 |
| 2024 | 2 | 3 |
| 2025 | 1 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Valveless, mechanical, pressure regulating pump14 Jul 2026US 12,680,534 B2Dana Italia S.R.L.
- Compact volumetric pump16 Dec 2025US 12,497,954 B2Dana Italia S.R.L.
- Oil feeder and linear compressor including the same31 Dec 2024US 12,180,955 B2LG Electronics Inc.
- Carbon free compressor pump system2 Jul 2024US 12,025,122 B2King Power Company LLC
- Linear compressor3 Oct 2023US 11,773,833 B2LG Electronics Inc.
- Elastically driven piston pump3 Sep 2026US 2026/0258794 A1
- A linear self-adjustable compression pump comprising a gyroscopic torque converter with centrifugal freely sliding precession arm4 Dec 2025US 2025/0369505 A1
- Hydraulic unit with sequential piston pumps operated by rolling weights23 Oct 2025US 2025/0327444 A1
- Valveless, mechanical, pressure regulating pump14 Aug 2025US 2025/0257723 A1Dana Italia S.R.L.
- Tire air replenishing device5 Dec 2024US 2024/0399803 A1Murakami Corporation
Most cited
By later US patents
- Variable proportioner71US 4,572,229 ACrown Technology, Inc. · 1986
- Variable displacement high pressure pump for fuel injection systems64US 5,404,855 ACummins Engine Company, Inc. · 1995
- Pump with internal pressure relief56US 5,219,274 ATuthill Corporation · 1993
- Manually operated liquid dispensing device49US 4,260,082 AThe AFA Corporation · 1981
- Mechanically operated dispensing device for increasing discharge pressure and dispensing time41US 4,167,941 AJames D. Pauls, Ltd. (Limited Partnership) · 1979