B66D 5/04
Actuated by centrifugal force
Official title: actuated by centrifugal force
B66D5/04 (Actuated by centrifugal force) appears on 35 US grants and 18 published applications in this corpus.
Search patents in B66D- Granted patents
- 35
- Published applications
- 18
- Assignees
- 30
- Inventors
- 57
- Latest grant
- 26 Dec 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 2 |
| 2019 | 0 | 1 |
| 2020 | 0 | 2 |
| 2021 | 1 | 2 |
| 2022 | 1 | 0 |
| 2023 | 3 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- Mast safety system26 Dec 2023US 11,851,953 B2Saudi Arabian Oil Company
- Abseiling device8 Aug 2023US 11,717,708 B2Mittelmann Sicherheitstechnik GmbH & Co. KG
- Safely brake for an elevator4 Jul 2023US 11,691,848 B2Alimak Group Sweden AB
- Overhead storage device2 Aug 2022US 11,401,137 B2
- Centrifugal brake mechanism20 Apr 2021US 10,981,760 B2Skysaver Rescue Ltd.
- Actuator primarily activated by transversal acceleration25 Dec 2025US 2025/0389305 A1Brillianze Sweden AB
- Centrifugal Electromechanical Actuator10 Jul 2025US 2025/0223140 A1Stromag France SAS
- Abseiling device with torque limiter26 Jun 2025US 2025/0205519 A1Mittelmann Sicherheitstechnik GmbH & Co. KG
- Mast safety system11 Nov 2021US 2021/0347616 A1Saudi Arabian Oil Company
- Detachable centrifugal brake for lift equipment29 Jul 2021US 2021/0229967 A1Embragatges I Derivats, S.A.
Most cited
By later US patents
- Slow descender including fluid and mechanical braking devices68US 3,946,989 A1976
- Centrifugal braking device29US 4,216,848 AHitachi, Ltd. · 1980
- Balancing hoist and material handling system25US 5,522,581 AZimmerman International Corp. · 1996
- Safety winch with disengageable drive24US 4,489,919 A1984
- Emergency brake apparatus for an elevator22US 5,202,539 AInventio AG · 1993