B66D 1/58
Responsive to excess of load
Official title: responsive to excess of load
B66D1/58 (Responsive to excess of load) appears on 169 US grants and 117 published applications in this corpus.
Search patents in B66D- Granted patents
- 169
- Published applications
- 117
- Assignees
- 122
- Inventors
- 279
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 0 | 0 |
| 2002 | 4 | 5 |
| 2003 | 5 | 1 |
| 2004 | 1 | 3 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 3 | 4 |
| 2008 | 2 | 6 |
| 2009 | 3 | 3 |
| 2010 | 5 | 6 |
| 2011 | 4 | 2 |
| 2012 | 1 | 4 |
| 2013 | 1 | 2 |
| 2014 | 4 | 4 |
| 2015 | 3 | 8 |
| 2016 | 5 | 13 |
| 2017 | 5 | 3 |
| 2018 | 12 | 7 |
| 2019 | 3 | 14 |
| 2020 | 10 | 4 |
| 2021 | 8 | 8 |
| 2022 | 7 | 6 |
| 2023 | 6 | 3 |
| 2024 | 2 | 4 |
| 2025 | 3 | 4 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hoist system and process implementing an emergency stopping brake2 Jun 2026US 12,643,775 B2Breeze-Eastern LLC
- Method for protecting a lifting member against an overload and device implementing this method5 May 2026US 12,617,657 B2Reel
- Rescue hoist with cable release safety provision31 Mar 2026US 12,589,265 B2Hornet Acquisitionco, LLC
- Augmented hoist cable cut algorithm13 Jan 2026US 12,522,354 B2Hornet Acquisitionco, LLC
- Winch equipped with a variable torque limiter26 Aug 2025US 12,398,025 B2Thales
- Method and system for evaluating a retraction load for a winch hook retension system19 Mar 2026US 2026/0077982 A1Fca US LLC
- Rescue hoist with cable release safety provision23 Oct 2025US 2025/0325847 A1Hornet Acquisitionco, LLC
- Load Sensing Device for a Hoist4 Sep 2025US 2025/0277712 A1Columbus McKinnon Corporation
- Sheave device retracting and unfolding method22 May 2025US 2025/0162846 A1Kobelco Construction Machinery Co., Ltd.
- Drive gear assembly with predetermined overload protection15 May 2025US 2025/0153981 A1Southwire Company
Most cited
By later US patents
- Elevating system62US 5,361,565 A1994
- Overload protection apparatus for hoisting machine53US 4,103,872 AHitachi, Ltd. · 1978
- Hoisting gear49US 6,793,203 B2Wirth Maschinen-und Bohrgeratefabrik GmbH · 2004
- Lifting apparatus including overload sensing device45US 5,662,311 AHarnischfeger Corporation · 1997
- Single failure proof crane44US 4,175,727 AEderer Incorporated · 1979