B21B 33/00
Safety devices not otherwise provided for
Official title: Safety devices not otherwise provided for (safety devices in general F16P); Breaker blocks; Devices for freeing jammed rolls {for handling cobbles; Overload safety devices}
B21B33/00 (Safety devices not otherwise provided for) appears on 42 US grants and 11 published applications in this corpus.
Search patents in B21B- Granted patents
- 42
- Published applications
- 11
- Assignees
- 35
- Inventors
- 97
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 3 |
| 2004 | 1 | 0 |
| 2005 | 3 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 2 |
| 2025 | 1 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of descaling heavy gage sheet metal coils and heavy gage individual sheets of sheet metal22 Sep 2026US 12,741,306 B2Lloyds Engineering Works Limited
- Tail end buckling suppression device10 Mar 2026US 12,569,898 B2TMEIC Corporation
- Method of detecting chattering in cold rolling mill, chattering detecting device for cold rolling mill, cold rolling method, cold rolling mill, and method of manufacturing steel sheet19 Aug 2025US 12,390,846 B2Jfe Steel Corporation
- Safety device for a machine and method of operating a safety device6 Dec 2022US 11,517,951 B2Q-tec Prüfgeräte GmbH
- Security coupling in particular for main drivetrains on rolling stands1 Sep 2009US 7,582,019 B2SMS Demag AG
- Modular stand base for spaced stands of a rolling mil20 Nov 2025US 2025/0353052 A1
- Method of Descaling Heavy Gage Sheet Metal Coils and Heavy Gage Individual Sheets of Sheet Metal29 May 2025US 2025/0170631 A1The Material Works, Ltd.
- Tail end buckling suppression device7 Mar 2024US 2024/0075510 A1Toshiba Mitsubishi-Electric Industrial Systems Corporation
- Method of detecting chattering in cold rolling mill, chattering detecting device for cold rolling mill, cold rolling method, cold rolling mill, and method of manufacturing steel sheet1 Feb 2024US 2024/0033797 A1Jfe Steel Corporation
- Safety device for a machine and method of operating a safety device21 Jan 2021US 2021/0016334 A1Q-tec Prüfgeräte GmbH
Most cited
By later US patents
- Apparatus for detecting a failure in bearings32US 4,884,449 AKawasaki Steel Corporation · 1989
- Method of ascertaining the magnitude of forces acting upon rolls in rolling mills19US 4,938,045 A1990
- Rolling bearing unit15US 6,971,799 B2Nsk Ltd. · 2005
- Gear type coupling with overload protection14US 4,347,715 AKoppers Company, Inc. · 1982
- Bearing with an electric-acoustic transducer for transmitting information regarding various parameters within the bearing14US 5,805,080 AThe Torrington Company · 1998