B66B 17/18
Swinging bridges
Official title: Swinging bridges, e.g. for compensating for differences in level between car or cage and landing
B66B17/18 (Swinging bridges) appears on 8 US grants and 5 published applications in this corpus.
Search patents in B66B- Granted patents
- 8
- Published applications
- 5
- Assignees
- 6
- Inventors
- 23
- Latest grant
- 19 Feb 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 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 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 2 | 3 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Bridging apparatus19 Feb 2019US 10,212,870 B2Hall Labs LLC
- Lap joint platform of large-load lifting container12 Jun 2018US 9,994,426 B1China University of Mining and Technology
- Bridging apparatus3 Apr 2018US 9,932,171 B1
- Mining elevator carrying platform and carrying method12 Dec 2017US 9,840,399 B2China University of Mining and Technology
- Mining elevator lapping platform suitable for flexible guide rail and mining elevator lapping method19 Jul 2016US 9,394,142 B2China University of Mining and Technology
- Bridging Apparatus28 Jun 2018US 2018/0178976 A1Hall Labs LLC
- A lap joint platform of large-load lifting container14 Jun 2018US 2018/0162700 A1China University of Mining and Technology
- Bridging Apparatus19 Apr 2018US 2018/0105356 A1
- Mining elevator carrying platform and carrying method9 Apr 2015US 2015/0096842 A1China University of Mining and Technology
- Mining elevator lapping platform suitable for flexible guide rail and mining elevator lapping method5 Feb 2015US 2015/0037125 A1China University of Mining and Technology
Most cited
By later US patents
- Elevator platform structure22US 4,063,619 A1977
- Automatic drawbridge for elevator5US 4,302,145 AThe Peelle Company · 1981
- Bridging apparatus4US 9,932,171 B12018
- Elevator bridge apparatus2US 5,170,864 A1992
- Mining elevator lapping platform suitable for flexible guide rail and mining elevator lapping method2US 9,394,142 B2China University of Mining and Technology · 2016