B61H 13/30
Adjustable to take account of variation of vehicle weight
Official title: adjustable to take account of variation of vehicle weight (arrangements for adjusting wheel-braking force in response to vehicle weight or load B60T8/18)
B61H13/30 (Adjustable to take account of variation of vehicle weight) appears on 9 US grants and 7 published applications in this corpus.
Search patents in B61H- Granted patents
- 9
- Published applications
- 7
- Assignees
- 9
- Inventors
- 12
- Latest grant
- 21 May 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 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 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Coordinated braking systems and methods for rail cars21 May 2024US 11,987,457 B2Amsted Rail Company, Inc.
- Individualized dynamic electric train braking5 Sep 2023US 11,745,707 B2United States Department of Transportation, Federal Railroad Administration
- Park ride with weight proportional water braking24 May 2022US 11,338,212 B2Disney Enterprises, Inc.
- Truck mounted braking system for a railway car8 Oct 2019US 10,435,047 B2Strato, Inc.
- Truck-mounted brake system6 Nov 2018US 10,118,630 B1Strato, Inc.
- Coordinated braking systems and methods for rail cars3 Nov 2022US 2022/0348428 A1Amsted Rail Company, Inc.
- Park ride with weight proportional water braking18 Feb 2021US 2021/0046390 A1Disney Enterprises, Inc.
- Individualized Dynamic Electric Train Braking19 Nov 2020US 2020/0361433 A1United States Department of Transportation, Federal Railroad Administration
- Truck mounted braking system for a railway car31 Jan 2019US 2019/0031215 A1Strato, Inc.
- Braking system for a railway car12 Nov 2015US 2015/0321681 A1Amsted Rail-Faiveley LLC
Most cited
By later US patents
- Load-dependent brake valve for controlling the brake line pressure of compressed air brakes of a vehicle6US 5,052,761 AWerkzeugmaschinenfabrik Oerlikon-Buhrle AG · 1991
- Empty-load device feedback arrangement6US 9,020,667 B2Wabtec Holding Corp. · 2015
- Empty and load valve for a railroad car brake system5US 4,648,661 ASloan Valve Company · 1987
- Braking system for a railway car3US 9,540,020 B2Amsted Rail-Faiveley LLC · 2017
- Park ride with weight proportional water braking1US 11,338,212 B2Disney Enterprises, Inc. · 2022