B23B 31/1176
Using fluid-pressure means to actuate the gripping means
Official title: {using fluid-pressure means to actuate the gripping means}
B23B31/1176 (Using fluid-pressure means to actuate the gripping means) appears on 10 US grants and 12 published applications in this corpus.
Search patents in B23B- Granted patents
- 10
- Published applications
- 12
- Assignees
- 10
- Inventors
- 24
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 1 | 2 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 2 | 0 |
By publication year.
Recent patents
- External clip-on fixture30 Dec 2025US 12,508,690 B2Beijing Soft Robot Tech. Co., Ltd.
- Self-locking fluidic clamping device18 Nov 2025US 12,473,935 B2
- Gripping device23 Jan 2024US 11,878,336 B2Hinterkopf GmbH
- Chuck device23 Mar 2021US 10,953,476 B2Sanoh Industrial Co., Ltd.
- Hydraulic expansion chuck21 May 2019US 10,293,413 B2Kennamental Inc.
- Self-locking fluidic clamping device13 Jul 2023US 2023/0220856 A1
- Gripping device22 Sep 2022US 2022/0297177 A1Hinterkopf GmbH
- External clip-on fixture10 Feb 2022US 2022/0040820 A1Beijing Soft Robot Tech. Co., Ltd.
- Chuck device27 Feb 2020US 2020/0061719 A1Sanoh Industrial Co., Ltd.
- Hydraulic expansion chuck29 Oct 2015US 2015/0306676 A1Kennametal Inc.
Most cited
By later US patents
- Expansion chuck4US 9,289,831 B2Kennametal Inc. · 2016
- Hydraulic expansion chuck3US 9,079,254 B2Kennametal Inc. · 2015
- Tool holder3US 9,676,039 B2Big Daishow A Seiki Co Ltd · 2017
- Disc-chucking mechanism having contractable/expandable O-ring for fixing disc2US 7,278,150 B2Canon Kabushiki Kaisha · 2007
- Hydraulic expansion chuck1US 10,293,413 B2Kennamental Inc. · 2019