F04B 7/0233
A common distribution member forming a single discharge distributor for a plurality
Official title: {a common distribution member forming a single discharge distributor for a plurality of pumping chambers}
F04B7/0233 (A common distribution member forming a single discharge distributor for a plurality) appears on 29 US grants and 8 published applications in this corpus.
Search patents in F04B- Granted patents
- 29
- Published applications
- 8
- Assignees
- 17
- Inventors
- 49
- Latest grant
- 9 Nov 2010
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 5 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 5 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 3 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Self-reciprocating energy recovery device9 Nov 2010US 7,828,972 B2Korea Institute of Machinery & Materials
- Crossover switching valve1 Dec 2009US 7,625,190 B2K.R. Anderson, Inc.
- Device and method for controlling a two cylinder thick matter pump3 Nov 2009US 7,611,331 B2Putzmeister Concrete Pumps GmbH
- Device and method for controlling a thick matter pump1 Sep 2009US 7,581,935 B2Putzmeister Concrete Pumps GmbH
- Ring for concrete pump22 Feb 2005US 6,857,861 B2Kennametal Inc.
- Pulsation-free wet spraying machine14 Jan 2021US 2021/0010372 A1Shandong University of Science and Technology
- Hydraulic system4 Oct 2018US 2018/0283559 A1Grundfos Holding A/S
- Self-reciprocating energy recovery device17 Dec 2009US 2009/0308796 A1Korea Institute of Machinery & Materials
- Device and method for controlling a two cylinder thick matter pump23 Aug 2007US 2007/0196219 A1Putzmeister Aktiengesellschft
- Device and method for controlling a thick matter pump2 Nov 2006US 2006/0245942 A1Putzmeister Concrete Pumps GmbH
Most cited
By later US patents
- Air drive pumps and components therefor55US 6,152,705 AWilden Pump & Engineering Co. · 2000
- Method of recovering energy from reverse osmosis waste streams43US 5,306,428 A1994
- Pumping apparatus for wet concrete28US 3,994,627 AFogt Industriemaschinenvertretung A.G. · 1976
- Internal combustion assisted hydraulic engine23US 4,097,198 A1978
- Air driven devices and components therefor18US 6,435,845 B1Wilden Pump & Engineering Co. · 2002