B23B 31/305
The gripping means is a deformable sleeve
Official title: {the gripping means is a deformable sleeve}
B23B31/305 (The gripping means is a deformable sleeve) appears on 157 US grants and 129 published applications in this corpus.
Search patents in B23B- Granted patents
- 157
- Published applications
- 129
- Assignees
- 95
- Inventors
- 238
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 6 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 0 |
| 2002 | 2 | 3 |
| 2003 | 3 | 3 |
| 2004 | 1 | 2 |
| 2005 | 3 | 5 |
| 2006 | 4 | 2 |
| 2007 | 1 | 3 |
| 2008 | 3 | 6 |
| 2009 | 0 | 2 |
| 2010 | 1 | 2 |
| 2011 | 3 | 4 |
| 2012 | 1 | 3 |
| 2013 | 1 | 7 |
| 2014 | 3 | 6 |
| 2015 | 6 | 10 |
| 2016 | 4 | 5 |
| 2017 | 10 | 4 |
| 2018 | 5 | 5 |
| 2019 | 5 | 8 |
| 2020 | 5 | 8 |
| 2021 | 9 | 9 |
| 2022 | 6 | 8 |
| 2023 | 6 | 7 |
| 2024 | 1 | 5 |
| 2025 | 6 | 9 |
| 2026 | 6 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Modular hydraulic chucks4 Aug 2026US 12,697,662 B2Kennametal Inc.
- Modular hydraulic chuck26 May 2026US 12,636,713 B2Kennametal Inc.
- Hydro chuck7 Apr 2026US 12,594,609 B2Big Daishowa Co., Ltd.
- Tensioning device for a scroll compressor17 Feb 2026US 12,553,435 B2Schwäbische Werkzeugmaschinen GmbH
- Reducing sleeve, modular system for providing a reducing sleeve assembly, and machining assembly13 Jan 2026US 12,521,799 B2
- Tool holder16 Jul 2026US 2026/0199988 A1PCM Precision Tooling SA
- Device For Grinding A Workpiece And/Or Dressing A Tool16 Jul 2026US 2026/0200037 A1Reishauer AG
- Hydraulic expansion chuck for receiving a tool21 May 2026US 2026/0138195 A1Gühring KG
- Hydraulic expansion chuck6 Nov 2025US 2025/0339903 A1Gühring KG
- Expansion dleeve for a hydraulic expansion chuck16 Oct 2025US 2025/0319525 A1Gühring KG
Most cited
By later US patents
- Hydraulic tool holder with coolant jets53US 5,388,487 ASandvik AB · 1995
- Clamping tool for non-positive and high-precision clamping of workpieces40US 5,197,720 ADaimler-Benz Aktiengesellschaft · 1993
- Hydraulic clamp bushing having sigma shaped bushing ends37US 5,855,446 AETP Transmission AB · 1999
- Tool holder with centering adjustment34US 5,286,042 AHydra-Lock Corporation · 1994
- Tool holder30US 6,077,003 AHydra-Lock Corporation · 2000