B23B 2231/50
Devices to counteract clamping forces exerted within the spindle in order to
Official title: Devices to counteract clamping forces exerted within the spindle in order to release the tool or workpiece
B23B2231/50 (Devices to counteract clamping forces exerted within the spindle in order to) appears on 16 US grants and 13 published applications in this corpus.
Search patents in B23B- Granted patents
- 16
- Published applications
- 13
- Assignees
- 15
- Inventors
- 33
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 4 | 0 |
| 1987 | 0 | 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 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 2 |
| 2015 | 1 | 0 |
| 2016 | 1 | 4 |
| 2017 | 3 | 0 |
| 2018 | 1 | 3 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Tooling exchange mechanism and machine tool having the tooling exchange mechanism30 Sep 2025US 12,427,613 B2Citizen Machinery Co., Ltd.
- Clamping device and machining unit comprising such a clamping device12 May 2020US 10,646,929 B2Ott-Jakob Spanntechnik GmbH
- Machine tool2 Jul 2019US 10,335,863 B2Fanuc Corporation
- Linear actuator2 Oct 2018US 10,090,730 B2Schaeffler Technologies AG & Co. KG
- Main spindle device of machine tool24 Oct 2017US 9,796,025 B2Jtekt Corporation
- Machine tool12 Feb 2026US 2026/0042178 A1Sugino Machine Limited
- Tooling exchange mechanism and machine tool having the tooling exchange mechanism21 Sep 2023US 2023/0294227 A1Citizen Machinery Co., Ltd.
- Axle Arrangement for Mounting a Tool or a Workpiece and Method for Operating the Axle Arrangement8 Nov 2018US 2018/0318938 A1Walter Maschinenbau GmbH
- Clamping Device and Machining Unit Comprising Such a Clamping Device11 Oct 2018US 2018/0290215 A1Ott-Jakob Spanntechnik GmbH
- Machine tool4 Oct 2018US 2018/0281082 A1Fanuc Corporation
Most cited
By later US patents
- High speed motorized spindle with tool clamping/unclamping mechanism19US 4,583,894 AEx-Cell-O Corporation · 1986
- Tool clamping device for a spindle head17US 4,604,012 AToyoda Koki Kabushiki Kaisha · 1986
- Tool clamping device for main spindle14US 4,628,586 AToyoda Koki Kabushiki Kaisha · 1986
- Method for operating an actuation unit and device for carrying out said method5US 8,297,893 B2Roehm GmbH · 2012
- Linear actuator3US 10,090,730 B2Schaeffler Technologies AG & Co. KG · 2018