F04B 9/1235
The movement of the pump piston in the two directions being obtained
Official title: {the movement of the pump piston in the two directions being obtained by two single-acting piston fluid motors, each acting in one direction}
F04B9/1235 (The movement of the pump piston in the two directions being obtained) appears on 11 US grants and 10 published applications in this corpus.
Search patents in F04B- Granted patents
- 11
- Published applications
- 10
- Assignees
- 9
- Inventors
- 20
- Latest grant
- 18 Oct 2016
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 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 | 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 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 3 |
| 2005 | 2 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 2 | 0 |
By publication year. Applications have been published since 2001.
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Most cited
By later US patents
- Reciprocable device with switching mechanism51US 5,505,593 AShurflo Pump Manufacturing Co. · 1996
- Bulk loading plastic compound dispensing device46US 3,980,209 ARoean Industries · 1976
- Beverage dispensing system13US 3,981,414 A1976
- Pressure driven pumping system8US 8,323,003 B2Hydril USA Manufacturing LLC · 2012
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