B23B 31/1178
Using fluid-pressure means to actuate the gripping means
Official title: {using fluid-pressure means to actuate the gripping means}
B23B31/1178 (Using fluid-pressure means to actuate the gripping means) appears on 13 US grants and 15 published applications in this corpus.
Search patents in B23B- Granted patents
- 13
- Published applications
- 15
- Assignees
- 11
- Inventors
- 22
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 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 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 2 | 2 |
| 2020 | 0 | 2 |
| 2021 | 1 | 1 |
| 2022 | 2 | 2 |
| 2023 | 2 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Modular hydraulic chuck26 May 2026US 12,636,713 B2Kennametal Inc.
- Hydraulic expanding chuck17 Oct 2023US 11,786,978 B2Guehring KG
- Tool holder with built-in cavities17 Jan 2023US 11,554,422 B2Franz Haimer Maschinenbau KG
- Hydraulic-expansion chuck and the use thereof20 Dec 2022US 11,529,688 B2Shaeffler Technologies AG & Co. KG
- Hydraulically clampable tool holder or workpiece holder15 Feb 2022US 11,247,278 B2Haimer GmbH
- Modular hydraulic chuck30 Jan 2025US 2025/0033122 A1Kennametal Inc.
- Tool holder16 Nov 2023US 2023/0364686 A1Nt Tool Corporation
- Hydraulic expansion chuck19 May 2022US 2022/0152709 A1Guehring KG
- Hydraulic expanding chuck19 May 2022US 2022/0152710 A1Guehring KG
- Hydraulic-Expansion Chuck and the Use thereof19 Aug 2021US 2021/0252609 A1Schaeffler Technologies AG & Co. KG
Most cited
By later US patents
- Expansion chuck4US 9,289,831 B2Kennametal Inc. · 2016
- Clamping device for workpieces or tools with a high concentricity accuracy3US 4,801,227 AEmuge-Werk Richard Glimpel Fabrik fur Prazisionwerkzeuge (vormals Moschkau & Glimpel) · 1989
- Hydraulic expansion chuck3US 9,079,254 B2Kennametal Inc. · 2015
- Hydro-expansion chuck3US 9,566,650 B2Guehring Ohg · 2017
- Hydraulic expansion chuck1US 10,293,413 B2Kennamental Inc. · 2019