B21B 25/02
Guides, supports, or abutments for mandrels
Official title: Guides, supports, or abutments for mandrels, e.g. carriages {or steadiers}; Adjusting devices for mandrels
B21B25/02 (Guides, supports, or abutments for mandrels) appears on 36 US grants and 23 published applications in this corpus.
Search patents in B21B- Granted patents
- 36
- Published applications
- 23
- Assignees
- 20
- Inventors
- 78
- Latest grant
- 15 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 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 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 3 |
| 2014 | 1 | 0 |
| 2015 | 1 | 5 |
| 2016 | 3 | 1 |
| 2017 | 4 | 1 |
| 2018 | 3 | 1 |
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 2 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device and method for handling mandrel rods in a tube rolling mill15 Apr 2025US 12,275,047 B2SMS group GmbH
- Guide device for guiding a driving bar of a mandrel or for guiding a mandrel in a rolling process of tubular bodies31 Oct 2023US 11,801,541 B2Danieli & C. Officine Meccaniche SpA
- Rolling mill for rolling concave, rod-shaped bodies26 Oct 2021US 11,154,920 B2Danieli & C. Officine Meccaniche SpA
- Cold pilger rolling mill and method for producing a pipe16 Mar 2021US 10,946,424 B2Sandvik Materials Technology Deutschland GmbH
- Mandrel conveying device for a tube rolling mill21 Aug 2018US 10,052,669 B2Danieli & C. Officine Meccaniche SpA
- Adaptive positioning apparatus and method for thin-walled nozzles9 Jul 2026US 2026/0192346 A1Xi'an Space Engine Company Limited
- System for holding back a mandrel rod in a pipe rolling mill, and method for operating said system24 Jul 2025US 2025/0235913 A1SMS group GmbH
- Device and method for handling mandrel rods in a tube rolling mill29 Jun 2023US 2023/0201900 A1SMS group GmbH
- Guide device for guiding a driving bar of a mandrel or for guiding a mandrel in a rolling process of tubular bodies14 Jul 2022US 2022/0219213 A1Danieli & C. Officine Meccaniche SpA
- Rolling mill for rolling hollow or, in all cases, concave rod-shaped bodies9 Jan 2020US 2020/0009625 A1Danieli & C. Officine Meccaniche SpA
Most cited
By later US patents
- Device for controlling the speed of a mandrel in continuous retained-mandrel rolling mills19US 4,186,585 AInnocenti Santeustacchio S.p.A. · 1980
- Unit for rolling pipes on a mandrel10US 6,041,635 ADemag Italimpianti S.p.A. · 2000
- Holding and guiding a mandrel rod in rolled stock in and adjacent to a tube rolling mill9US 4,638,655 AMannesmann Aktiengesellschaft · 1987
- Combined support and guide for the mandrel of a restrained mandrel continuous rolling mill8US 4,228,939 AInnocenti Santeustacchio S.p.A. · 1980
- Method and apparatus for rolling seamless tubes with a restrained mandrel7US 4,311,032 AInnocenti Santeustacchio S.p.A. · 1982