F01C 1/088
Elements in the toothed wheels or the carter for relieving the pressure
Official title: {Elements in the toothed wheels or the carter for relieving the pressure of fluid imprisoned in the zones of engagement}
F01C1/088 (Elements in the toothed wheels or the carter for relieving the pressure) appears on 7 US grants and 3 published applications in this corpus.
Search patents in F01C- Granted patents
- 7
- Published applications
- 3
- Assignees
- 5
- Inventors
- 9
- Latest grant
- 17 Apr 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 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 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 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 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Silent gear pump or motor suppressing troubles of trapping fluid17 Apr 2018US 9,945,230 B2
- Rotary piston engine which acts as a pump, condenser or motor for a fluid6 Jun 2017US 9,670,778 B2Robert Bosch GmbH
- Geared hydraulic apparatus15 Oct 2013US 8,556,609 B2Settima Meccanica S.r.l.
- Two-piece balance plate for gerotor motor11 Jul 2000US 6,086,345 AEaton Corporation
- Rotary piston machine31 Dec 1985US 4,561,836 A
- A silent gear pump or motor suppressing troubles of trapping fluid21 Apr 2016US 2016/0108733 A1LIM, Nag-Bok
- Rotary piston engine which acts as a pump, condenser or motor for a fluid26 Mar 2015US 2015/0086407 A1Robert Bosch GmbH
- Geared hydraulic apparatus29 Apr 2010US 2010/0104463 A1Settima Meccanica S.r.l.
Most cited
By later US patents
- Rotary piston machine7US 4,561,836 A1985
- Two-piece balance plate for gerotor motor7US 6,086,345 AEaton Corporation · 2000
- Fluid pressure operated pump or motor with secondary valve means for minimum and maximum volume chambers3US 4,343,600 AEaton Corporation · 1982
- Positive-displacement, fluid machine2US 4,068,988 AIngersoll-Rand Company · 1978
- Geared hydraulic apparatus2US 8,556,609 B2Settima Meccanica S.r.l. · 2013