B23B 31/404
Gripping the work or tool by jaws moving radially controlled by conical
Official title: {Gripping the work or tool by jaws moving radially controlled by conical surfaces (see also B23B31/16158)}
B23B31/404 (Gripping the work or tool by jaws moving radially controlled by conical) appears on 44 US grants and 27 published applications in this corpus.
Search patents in B23B- Granted patents
- 44
- Published applications
- 27
- Assignees
- 35
- Inventors
- 92
- Latest grant
- 30 May 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 4 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 3 |
| 2018 | 2 | 0 |
| 2019 | 1 | 2 |
| 2020 | 1 | 1 |
| 2021 | 0 | 3 |
| 2022 | 3 | 3 |
| 2023 | 1 | 1 |
| 2024 | 0 | 2 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Device for restraining/locking mechanical parts on machine tools30 May 2023US 11,660,683 B2Hydroblock S.r.l.
- Adjustable mandrel and fixture8 Nov 2022US 11,491,556 B2CITIC Dicastal Co., Ltd.
- Device for clamping a workpiece13 Sep 2022US 11,440,104 B2
- Inner cavity near-net-shaping device for micro cast-rolling additive manufacturing of large-scale special-shaped pipe13 Sep 2022US 11,440,254 B2Yanshan University
- Fixture for improving balance precision of wheel18 Feb 2020US 10,562,106 B2CITIC Dicastal Co., Ltd.
- Ram clamping system16 Oct 2025US 2025/0319526 A1Adelbert Haas GmbH
- Collet chuck29 Aug 2024US 2024/0286204 A1Fuji Corporation
- Mandrel Assembly for Use With a Rotary Tool4 Jan 2024US 2024/0001456 A1Robert Bosch GmbH
- Capture assembly and method of use thereof7 Sep 2023US 2023/0279326 A1Truvian Sciences, Inc.
- Wheel polishing device24 Nov 2022US 2022/0371148 A1
Most cited
By later US patents
- Expansible mandrel14US 3,997,176 ABorg-Warner Corporation · 1976
- System for supporting hollow cylinders14US 5,466,114 AXerox Corporation · 1995
- Fluid actuated chuck13US 4,953,877 A1990
- Air shaft12US 4,254,920 ADouble-E Inc. · 1981
- Mandrel for processing a workpiece with an internal spline12US 5,595,376 A1997