Y10S 173/04
Liquid operated
Y10S173/04 (Liquid operated) appears on 27 US grants and 0 published applications in this corpus.
Search patents in Y10S- Granted patents
- 27
- Published applications
- 0
- Assignees
- 20
- Inventors
- 34
- Latest grant
- 2 Jun 1992
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Hydraulic jackhammer2 Jun 1992US 5,117,923 ASulzer Brothers Limited
- Method for driving a hydraulic submerged tool23 Oct 1990US 4,964,473 AIHC Holland N. V.
- Pressure fluid operated percussion drilling machine provided with a rotation mechanism10 Mar 1987US 4,648,467 AOy Tampella AB
- Liquid inertia tool27 Nov 1984US 4,484,638 A
- Hydraulically operated impact motor14 Sep 1982US 4,349,075 AAtlas Copco Aktiebolag
No published applications in this class yet.
Most cited
By later US patents
- Impact tool20US 4,034,817 ANippon Pneumatic Manufacturing Co., Ltd. · 1977
- Drill fluid powered hydraulic system20US 4,211,291 ASmith International, Inc. · 1980
- Hydraulic percussion tool with impact blow and frequency control19US 4,062,411 AGardner-Denver Company · 1977
- Liquid inertia tool19US 4,484,638 A1984
- Hydraulic jackhammer18US 5,117,923 ASulzer Brothers Limited · 1992