B21D 3/04
Arranged on axes skew to the path of the work
Official title: arranged on axes skew to the path of the work
B21D3/04 (Arranged on axes skew to the path of the work) appears on 45 US grants and 22 published applications in this corpus.
Search patents in B21D- Granted patents
- 45
- Published applications
- 22
- Assignees
- 28
- Inventors
- 69
- Latest grant
- 28 Nov 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 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 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 2 |
| 2011 | 2 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 2 |
| 2014 | 1 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 2 |
| 2019 | 2 | 0 |
| 2020 | 0 | 3 |
| 2021 | 2 | 1 |
| 2022 | 1 | 0 |
| 2023 | 2 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Irregular tube straightener28 Nov 2023US 11,826,811 B1
- Transport system for a wire or a sheet and method for delivering a wire or a sheet3 Jan 2023US 11,541,441 B2Sandvik Materials Technology Deutschland GmbH
- System for cleaning, protecting and lubricating hyperbolic rollers and bearings placed in a rotating rotor which is used for straightening wire, rod or reinforcing bar, using air and oil30 Aug 2022US 11,426,782 B2
- Versatile tubing straightener21 Sep 2021US 11,123,782 B2Husky Corporation
- Roll straightening machine and method for producing an elongated string member27 Apr 2021US 10,987,711 B2Sandvik Materials Technology Deutschland GmbH
- Device and method for adjusting or setting a rolling gap of a two-roll straightening machine for rods and/or profiles23 Feb 2023US 2023/0057403 A1SMS group GmbH
- Transport system for a wire or a sheet and method for delivering a wire or a sheet21 Jan 2021US 2021/0016336 A1Sandvik Materials Technology Deutschland GmbH
- Versatile Tubing Straightener9 Jul 2020US 2020/0215594 A1Husky Corporation
- A System for Cleaning, Protecting and Lubricating Hyperbolic Rollers and Bearings Placed in a Rotating Rotor Which is Used for Straightening Wire, Rod or Reinforcing Bar, Using Air and Oil2 Jul 2020US 2020/0206801 A1
- Machine for the working of tubes provided with an optical sensor for measuring the forward displacement of the tube being worked and/or the rotational displacement of the same about the longitudinal axis thereof5 Mar 2020US 2020/0070229 A1Blm S.P.A.
Most cited
By later US patents
- Workpiece feed channel7US 4,038,861 ATh. Kieserling & Albrecht · 1977
- Pipe straightening and spinning method and apparatus7US 4,076,136 AEnglish Clays Lovering Pochin & Company Limited · 1978
- Method and apparatus for straightening pipe7US 4,534,197 A1985
- Straightening rolls7US 4,565,083 ASutton Engineering Company · 1986
- Apparatus for straightening tubing7US 4,663,955 ARoman Engineering Company, Inc. · 1987