B23B 2231/12
Chucks having means to amplify the force produced by the actuating means
Official title: Chucks having means to amplify the force produced by the actuating means to increase the clamping force
B23B2231/12 (Chucks having means to amplify the force produced by the actuating means) appears on 37 US grants and 29 published applications in this corpus.
Search patents in B23B- Granted patents
- 37
- Published applications
- 29
- Assignees
- 25
- Inventors
- 58
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 2 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 3 |
| 2008 | 1 | 2 |
| 2009 | 1 | 2 |
| 2010 | 1 | 0 |
| 2011 | 3 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 3 | 0 |
| 2020 | 0 | 1 |
| 2021 | 2 | 3 |
| 2022 | 0 | 3 |
| 2023 | 1 | 3 |
| 2024 | 0 | 2 |
| 2025 | 6 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Clamping device for tool holder1 Sep 2026US 12,722,209 B2AB Sandvik Coromant
- Shaft coupling for machine tools17 Jun 2025US 12,331,775 B2Horiba Europe GmbH
- Power tool chuck6 May 2025US 12,290,864 B2Black & Decker Inc.
- Clamping device for tool holder22 Apr 2025US 12,280,436 B2AB Sandvik Coromant
- Clamping device for tool holder22 Apr 2025US 12,280,437 B2AB Sandvik Coromant
- Power tool chuck11 Jun 2026US 2026/0158561 A1Black & Decker Inc.
- Clamping device for tool holder5 Sep 2024US 2024/0293873 A1AB Sandvik Coromant
- Clamping device for tool holder22 Aug 2024US 2024/0278334 A1AB Sandvik Coromant
- Clamping device for tool holder31 Aug 2023US 2023/0271261 A1AB Sandvik Coromant
- Shaft Coupling for Machine Tools2 Feb 2023US 2023/0030445 A1FerRobotics Compliant Robot Technology GmbH
Most cited
By later US patents
- Non-impact keyless chuck108US 5,125,673 A1992
- Chuck for tools87US 4,951,955 ASakamaki Mfg. Co., Ltd. · 1990
- Chuck with torque limiting mechanism and inclined plane for final tightening55US 5,411,275 AJacobs Chuck Technology Corporation · 1995
- Plastic grip boots for chucks55US 5,476,273 APower Tool Holders Incorporated · 1995
- Keyless chuck51US 5,215,317 AJacobs Chuck Technology Corporation · 1993