B21B 37/34
By hydraulic expansion of the rolls
Official title: by hydraulic expansion of the rolls
B21B37/34 (By hydraulic expansion of the rolls) appears on 7 US grants and 0 published applications in this corpus.
Search patents in B21B- Granted patents
- 7
- Published applications
- 0
- Assignees
- 5
- Inventors
- 15
- Latest grant
- 17 Apr 2001
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 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 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and apparatus for rolling a strip17 Apr 2001US 6,216,505 B1Sumitomo Metal Industries, Ltd.
- Rolling mill with laterally different velocities23 May 2000US 6,065,319 AIshikawajima-Harima Jukogyo Kabushiki Kaisha
- Flexible edge roll4 Aug 1987US 4,683,744 AInternational Rolling Mill Consultants, Inc.
- Tandem mill21 Apr 1987US 4,658,620 ASumitomo Metal Industries, Ltc.
- Method of controlling the strip shape and apparatus therefor6 Jan 1987US 4,633,693 ASumitomo Metal Industries, Ltd.
No published applications in this class yet.
Most cited
By later US patents
- Method of controlling the strip shape and apparatus therefor16US 4,633,693 ASumitomo Metal Industries, Ltd. · 1987
- Flexible edge roll13US 4,683,744 AInternational Rolling Mill Consultants, Inc. · 1987
- Method and apparatus for variably controlling transverse rigidity of rolling machine8US 4,458,515 AIshikawajima-Harima Jukogyo Kabushiki Kaisha · 1984
- Rolling mill4US 4,581,914 ASumitomo Metal Industries, Ltd. · 1986
- Tandem mill4US 4,658,620 ASumitomo Metal Industries, Ltc. · 1987