F16B 31/021
By means of a frangible part
Official title: {by means of a frangible part (F16B31/025, F16B31/028 take precedence; break members in torque limiters or torque indicators in wrenches or screwdrivers B25B23/1415)}
F16B31/021 (By means of a frangible part) appears on 310 US grants and 289 published applications in this corpus.
Search patents in F16B- Granted patents
- 310
- Published applications
- 289
- Assignees
- 199
- Inventors
- 581
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 8 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 9 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 7 | 2 |
| 2002 | 1 | 2 |
| 2003 | 2 | 7 |
| 2004 | 4 | 15 |
| 2005 | 4 | 6 |
| 2006 | 6 | 8 |
| 2007 | 9 | 9 |
| 2008 | 7 | 7 |
| 2009 | 1 | 9 |
| 2010 | 3 | 6 |
| 2011 | 3 | 8 |
| 2012 | 8 | 5 |
| 2013 | 8 | 13 |
| 2014 | 10 | 10 |
| 2015 | 11 | 11 |
| 2016 | 8 | 15 |
| 2017 | 8 | 14 |
| 2018 | 14 | 15 |
| 2019 | 12 | 21 |
| 2020 | 12 | 24 |
| 2021 | 20 | 15 |
| 2022 | 19 | 19 |
| 2023 | 12 | 15 |
| 2024 | 16 | 13 |
| 2025 | 10 | 10 |
| 2026 | 9 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Breakaway hanger and method of attaching a breakaway hanger to metal decking25 Aug 2026US 12,716,437 B1
- Grounding connector19 May 2026US 12,633,683 B2ERICO International Corporation
- Fastening arrangement with a vehicle roof-frame structure and a roof module21 Apr 2026US 12,606,246 B2Audi AG
- Rescue hoist with cable release safety provision31 Mar 2026US 12,589,265 B2Hornet Acquisitionco, LLC
- Torque-limiting nut for a break-off bolt24 Mar 2026US 12,584,510 B2Tyco Electronics Simel SAS
- Blind fastening device which can be re-tightened after installation, and method for installation of a blind fastening device of this type24 Sep 2026US 2026/0286996 A1Airbus Operations GmbH
- Breakaway aircraft structures27 Aug 2026US 2026/0249974 A1
- Shear bolt connector28 May 2026US 2026/0149193 A1Eaton Intelligent Power Limited
- Breakaway threaded fasteners21 May 2026US 2026/0139703 A1Hubbell Incorporated
- Lock Bolt with Anti-excessive Screwing Function23 Apr 2026US 2026/0110323 A1
Most cited
By later US patents
- Torque-setting, tamper-resistant fastener and method and tool for use with same115US 7,066,062 B22006
- Mechanical roof fastener113US 4,744,187 AThe Firestone Tire & Rubber Company · 1988
- Mine roof anchor bolt98US 4,556,350 A1985
- Torque limiting set screw97US 4,492,500 A1985
- Fastener bolt with limited torque head97US 5,713,705 A1998