F04B 2015/026
With a priming plunger or piston ahead of the pumping piston and
Official title: {with a priming plunger or piston ahead of the pumping piston and connected on the same piston rod}
F04B2015/026 (With a priming plunger or piston ahead of the pumping piston and) appears on 12 US grants and 5 published applications in this corpus.
Search patents in F04B- Granted patents
- 12
- Published applications
- 5
- Assignees
- 9
- Inventors
- 25
- Latest grant
- 23 Aug 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 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 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 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 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 1 | 2 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- High-viscosity pumping system23 Aug 2022US 11,421,667 B2J-KEM Scientific, Inc.
- Multi-stage displacement pump23 Nov 2021US 11,181,103 B2Waters Technologies Corporation
- Pump and a valve assembly therefor26 May 2020US 10,662,932 B2National Oilwell Varco Petroleum Equipment (Shanghai) Co., Ltd.
- Material sprayer having sliding pump mounting29 Oct 2019US 10,456,801 B2Graco Minnesota Inc.
- High viscosity material pump having valved priming piston25 Feb 1997US 5,605,446 AGraco Inc.
- Multi-stage displacement pump19 Dec 2019US 2019/0383277 A1Waters Technologies Corporation
- High-viscosity pumping system29 Aug 2019US 2019/0264669 A1J-KEM Scientific, Inc.
- Material sprayer having sliding pump mounting26 Jul 2018US 2018/0207660 A1Graco Minnesota Inc.
- A pump and a valve assembly therefor4 Jan 2018US 2018/0003314 A1National Oilwell Varco Petroleum Equipment (Shanghai) Co., Ltd.
- Thick-matter pump for producing a continuous thick-matter flow and method for operating a thick-matter pump for producing a continuous thick-matter flow19 Nov 2015US 2015/0330374 A1
Most cited
By later US patents
- Dual-acting, reciprocating piston pump16US 5,067,882 ANordson Corporation · 1991
- Pump for pumping both low viscosity and high viscosity fluids11US 4,014,629 AGeneral Electric Company · 1977
- Pump shovel bulk unloader7US 4,679,989 AGraco Inc. · 1987
- Pumping of high viscosity materials5US 4,875,833 ASaint-Gobain Vitrage · 1989
- Priming piston pump piston check valve5US 5,147,188 AGraco Inc. · 1992