B66D 5/18
For generating braking forces which are proportional to the loads suspended
Official title: for generating braking forces which are proportional to the loads suspended; Load-actuated brakes
B66D5/18 (For generating braking forces which are proportional to the loads suspended) appears on 44 US grants and 40 published applications in this corpus.
Search patents in B66D- Granted patents
- 44
- Published applications
- 40
- Assignees
- 29
- Inventors
- 67
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 4 |
| 2004 | 1 | 4 |
| 2005 | 2 | 4 |
| 2006 | 2 | 1 |
| 2007 | 2 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 2 | 1 |
| 2011 | 1 | 2 |
| 2012 | 1 | 2 |
| 2013 | 0 | 1 |
| 2014 | 2 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 3 |
| 2020 | 1 | 5 |
| 2021 | 4 | 0 |
| 2022 | 3 | 2 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Winch brake device30 Dec 2025US 12,509,333 B2Sumitomo Heavy Industries Construction Cranes Co., Ltd.
- Free fall winch27 Dec 2022US 11,535,499 B2Liebherr-Components Biberach GmbH
- Automatic load brake having wear-induced locking mechanism5 Jul 2022US 11,377,331 B2Goodrich Corporation
- Anti-fall mechanism for lifting equipment15 Feb 2022US 11,247,882 B2Shanghai United Imaging Healthcare Co., Ltd.
- Controlled descent safety systems and methods14 Dec 2021US 11,198,024 B2Bailout Systems, LLC
- Free Fall Winch8 Oct 2026US 2026/0307954 A1Liebherr-Components Biberach GmbH
- Method for collision monitoring of a cable-guided load4 Dec 2025US 2025/0368477 A1Liebherr-Werk Nenzing GmbH
- Emergency braking device for a cable winch having a cable drum which is rotatable about an axis of rotation, cable winch, and method for operating an emergency braking device26 Jun 2025US 2025/0206583 A1VINCORION Advanced Systems GmbH
- Lever hoist22 Feb 2024US 2024/0059533 A1Columbus Mckinnon Industrial Products GmbH
- Winch brake device14 Jul 2022US 2022/0219955 A1Sumitomo Heavy Industries Construction Cranes Co., Ltd.
Most cited
By later US patents
- Winch power transmission57US 4,545,567 AWarn Industries, Inc. · 1985
- Electrically powered or manually driven clutch and brake assembly for electric winch52US 5,573,091 A1996
- Brake for hoist assembly41US 6,889,958 B22005
- Automatic load brake36US 4,046,235 AWestern Gear Corporation · 1977
- Automatic braking arrangement for a windlass34US 3,994,476 A1976