F16D 49/20
Self-tightening brakes
Official title: Self-tightening brakes (with helical or coil with more than one turn F16D49/02)
F16D49/20 (Self-tightening brakes) appears on 38 US grants and 35 published applications in this corpus.
Search patents in F16D- Granted patents
- 38
- Published applications
- 35
- Assignees
- 37
- Inventors
- 97
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 0 |
| 2003 | 2 | 3 |
| 2004 | 1 | 3 |
| 2005 | 2 | 1 |
| 2006 | 3 | 6 |
| 2007 | 1 | 3 |
| 2008 | 1 | 1 |
| 2009 | 2 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 1 | 0 |
| 2016 | 0 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 2 |
| 2019 | 2 | 2 |
| 2020 | 0 | 1 |
| 2021 | 2 | 2 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 3 | 3 |
| 2025 | 0 | 0 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Self-locking mechanism, motor, and linear actuator18 Aug 2026US 12,710,078 B2Zhejiang Jiecang Linear Motion Technology Co., Ltd.
- Clamping brake for hydraulic rotating block26 May 2026US 12,637,036 B1Hydro-Gear Limited Partnership
- Permanent magnet generator brakes with dual wedges3 Dec 2024US 12,160,156 B2Hamilton Sundstrand Corporation
- Tool apparatus and method29 Oct 2024US 12,128,514 B2Festool GmbH
- Bearing assembly23 Apr 2024US 11,965,559 B2Ondal Medical Systems GmbH
- Permanent magnet generator brakes with dual wedges8 Aug 2024US 2024/0266911 A1Hamilton Sundstrand Corporation
- Self-locking mechanism, motor, and linear actuator20 Jun 2024US 2024/0200626 A1Zhejiang Jiecang Linear Motion Technology Co., Ltd.
- Self-locking arrangement for motor, and linear actuator13 Jun 2024US 2024/0195264 A1Zhejiang Jiecang Linear Motion Technology Co., Ltd.
- Tool apparatus and method30 Jun 2022US 2022/0203489 A1Festool GmbH
- Wedge brake control system and method25 Nov 2021US 2021/0362864 A1Aerostar International, LLC
Most cited
By later US patents
- Double-wrap brake band apparatus11US 6,260,671 B1NSK-Warner K. K. · 2001
- Work apparatus having a braking arrangement10US 10,371,044 B2Andreas Stihl AG & CO.KG · 2019
- Self-actuating brake linkage10US 4,053,032 AJ. I. Case Company · 1977
- Band brake with evenly distributed braking force application10US 6,112,863 A2000
- Residual magnetic devices and methods for an ignition actuation blockage device10US 7,401,483 B2Strattec Security Corporation · 2008