B23B 31/261
Clamping the end of the toolholder shank
Official title: {clamping the end of the toolholder shank}
B23B31/261 (Clamping the end of the toolholder shank) appears on 410 US grants and 209 published applications in this corpus.
Search patents in B23B- Granted patents
- 410
- Published applications
- 209
- Assignees
- 216
- Inventors
- 594
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 11 | 0 |
| 1978 | 8 | 0 |
| 1979 | 6 | 0 |
| 1980 | 6 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 6 | 0 |
| 1984 | 1 | 0 |
| 1985 | 7 | 0 |
| 1986 | 14 | 0 |
| 1987 | 12 | 0 |
| 1988 | 19 | 0 |
| 1989 | 15 | 0 |
| 1990 | 11 | 0 |
| 1991 | 13 | 0 |
| 1992 | 8 | 0 |
| 1993 | 10 | 0 |
| 1994 | 6 | 0 |
| 1995 | 8 | 0 |
| 1996 | 3 | 0 |
| 1997 | 7 | 0 |
| 1998 | 12 | 0 |
| 1999 | 13 | 0 |
| 2000 | 3 | 0 |
| 2001 | 11 | 3 |
| 2002 | 18 | 6 |
| 2003 | 6 | 5 |
| 2004 | 4 | 2 |
| 2005 | 6 | 10 |
| 2006 | 3 | 10 |
| 2007 | 9 | 7 |
| 2008 | 12 | 14 |
| 2009 | 4 | 5 |
| 2010 | 3 | 10 |
| 2011 | 4 | 12 |
| 2012 | 6 | 4 |
| 2013 | 12 | 3 |
| 2014 | 6 | 9 |
| 2015 | 2 | 13 |
| 2016 | 12 | 8 |
| 2017 | 14 | 9 |
| 2018 | 9 | 9 |
| 2019 | 7 | 7 |
| 2020 | 9 | 9 |
| 2021 | 2 | 11 |
| 2022 | 8 | 9 |
| 2023 | 7 | 13 |
| 2024 | 6 | 5 |
| 2025 | 9 | 9 |
| 2026 | 8 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Tool clamp device and machine tool29 Sep 2026US 12,746,605 B2Dmg Mori Co., Ltd.
- Clamping device for tool holder1 Sep 2026US 12,722,209 B2AB Sandvik Coromant
- Clamping device for tool holder28 Jul 2026US 12,691,504 B2AB Sandvik Coromant
- Components of a machine tool for automated collet chuck maintenance and cleaning21 Jul 2026US 12,686,092 B2Schmoll Maschinen GmbH
- Spindle device7 Jul 2026US 12,673,374 B2Fanuc Corporation
- Components of a Machine Tool for Automated Collet Chuck Maintenance and Cleaning1 Oct 2026US 2026/0295751 A1Schmoll Maschinen GmbH
- Tool holder with groove ring20 Aug 2026US 2026/0241464 A1Albrecht Praezision GmbH & Co. KG
- Device for handling a clamping ram7 May 2026US 2026/0124684 A1Adelbert Haas GmbH
- Tool-ejecting drawbar assembly23 Apr 2026US 2026/0108955 A1
- Motorized Tool Changer Spindle2 Apr 2026US 2026/0091457 A1Beijing Zaowu Shidai Technology Co., Ltd.
Most cited
By later US patents
- Tool changer for vertical boring machine1,027US 4,321,746 AWhite Consolidated Industries, Inc. · 1982
- System for automatic finishing of machine parts124US 5,091,861 AN.C.T. Limited · 1992
- Apparatus for machining a workpiece of wood, in particular wood beams70US 4,907,337 A1990
- Tool holder system and method of use43US 5,582,494 A1996
- Clamping device41US 4,135,418 AKennametal Inc. · 1979