B66D 1/16
The drums or barrels being freely rotatable
Official title: the drums or barrels being freely rotatable {, e.g. having a clutch activated independently of a brake (B66D1/20, B66D1/22, B66D1/24 take precedence; clutches activated alternately with brakes B66D1/14, slip couplings B66D1/14)}
B66D1/16 (The drums or barrels being freely rotatable) appears on 81 US grants and 60 published applications in this corpus.
Search patents in B66D- Granted patents
- 81
- Published applications
- 60
- Assignees
- 45
- Inventors
- 159
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 6 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 4 | 3 |
| 2010 | 2 | 3 |
| 2011 | 5 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 3 |
| 2015 | 1 | 2 |
| 2016 | 3 | 7 |
| 2017 | 0 | 3 |
| 2018 | 7 | 6 |
| 2019 | 4 | 3 |
| 2020 | 8 | 6 |
| 2021 | 5 | 2 |
| 2022 | 3 | 5 |
| 2023 | 0 | 1 |
| 2024 | 1 | 4 |
| 2025 | 2 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Winch with advanced electrical and mechanical smart controls28 Apr 2026US 12,612,290 B2Warn Industries, Inc.
- Augmented hoist cable cut algorithm13 Jan 2026US 12,522,354 B2Hornet Acquisitionco, LLC
- Impactor apparatus operated from rotorcraft11 Nov 2025US 12,466,706 B2Fabrications Tjd Inc.
- Transfer device for maintaining an electrical or optical connection20 May 2025US 12,304,772 B2Thales
- Work machine11 Jun 2024US 12,006,193 B2Kobelco Construction Machinery Co., Ltd.
- Winch control device and crane comprising same26 Mar 2026US 2026/0084938 A1Kobelco Construction Machinery Co., Ltd.
- Automatic resetting mechanism for winch engaging-disengaging switch5 Feb 2026US 2026/0035218 A1Ningbo Lianda Winch Co., Ltd.
- Automatic resetting device of engaging-disengaging winch25 Dec 2025US 2025/0388438 A1Ningbo Lianda Winch Co., Ltd.
- Portable winch24 Jul 2025US 2025/0237276 A1Warn Industries, Inc.
- Capstan with integrated torque limiting overload clutch12 Sep 2024US 2024/0300785 A1Goodrich Corporation
Most cited
By later US patents
- Manual disengaging and self-engaging clutch65US 7,891,641 B1Ramsey Winch Company · 2011
- Winch58US 4,004,780 AWarn Industries, Inc. · 1977
- Electrically powered or manually driven clutch and brake assembly for electric winch52US 5,573,091 A1996
- Person lowering and raising winch assembly49US 6,085,368 ABHM Medical Inc. · 2000
- Engine speed control for hoist and tongs49US 6,276,449 B12001