F15B 7/04
In which the ratio between pump stroke and motor stroke varies with
Official title: In which the ratio between pump stroke and motor stroke varies with the resistance against the motor
F15B7/04 (In which the ratio between pump stroke and motor stroke varies with) appears on 14 US grants and 8 published applications in this corpus.
Search patents in F15B- Granted patents
- 14
- Published applications
- 8
- Assignees
- 7
- Inventors
- 19
- Latest grant
- 9 May 2006
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 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 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 4 |
| 2004 | 3 | 3 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Multilevel speed regulation jack9 May 2006US 7,040,091 B2
- Hydraulic ratchet wrench with double-action hydraulic cylinder piston drive22 Nov 2005US 6,966,240 B2
- Drive device for a movable part, especially a mold closure device for an injection molding machine, and method for operating such a drive device16 Nov 2004US 6,817,859 B2Bosch Rexroth AG
- Multilevel speed regulation jack and method of operation15 Jun 2004US 6,748,740 B2
- Speed regulation jack and method of operation1 Jun 2004US 6,742,334 B2
- Multi-speed hydraulic jack12 Jan 2012US 2012/0006014 A1
- Multilevel speed regulation jack18 Nov 2004US 2004/0226293 A1
- Hydraulic ratchet wrench with double-action hydraulic cylinder piston drive3 Jun 2004US 2004/0103762 A1
- Speed regulation jack and method of operation4 Mar 2004US 2004/0040296 A1
- Load-settable rapid lifting jack24 Jul 2003US 2003/0136125 A1Shinn Fu Corporation
Most cited
By later US patents
- Hydraulic tool having mechanical actuator with internal bypass valve29US 6,564,610 B2Fci USA LLC · 2003
- Hydraulic circuit system for one-touch jack and its structure20US 5,755,099 AMVP (H. K.) Industries Limited · 1998
- Three speed circuit for hydraulic tool19US 5,836,400 A1998
- Apply-rate-independent fast-fill master cylinder13US 5,557,935 AKelsey-Hayes Company · 1996
- Oil circuit of a jack for rising object to preset position rapidly11US 6,199,379 B1MVP (H. K.) Industries Limited · 2001