B60T 15/52
For quick release of brakes
Official title: for quick release of brakes, e.g. for influencing counter- pressure in triple valve or recirculating air from reservoir or brake cylinder to brake pipe
B60T15/52 (For quick release of brakes) appears on 38 US grants and 17 published applications in this corpus.
Search patents in B60T- Granted patents
- 38
- Published applications
- 17
- Assignees
- 18
- Inventors
- 67
- Latest grant
- 10 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 3 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 2 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 1 | 4 |
| 2023 | 1 | 1 |
| 2024 | 4 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Brake control valve arrangement10 Sep 2024US 12,084,032 B2Knorr-Bremse Systeme FüR Schienenfahrzeuge GmbH
- Combined dirt collector and cutout cock having controlled venting11 Jun 2024US 12,005,872 B2New York Air Brake Corporation
- Compressed-air braking system for a motor vehicle16 Apr 2024US 11,958,450 B2Zf Cv Systems Europe BV
- Valve with frangible fitting16 Jan 2024US 11,872,968 B2Bendix Commercial Vehicle Systems LLC
- Pressure equalization valve13 Jun 2023US 11,673,539 B2Knorr-Bremse Systeme FüR Schienenfahrzeuge GmbH
- Pneumatic braking device for vehicles and method for operating a braking device8 Oct 2026US 2026/0307636 A1ZF CV Systems Global GmbH
- Pneumatic valve device including a quick release insert5 Dec 2024US 2024/0400028 A1Zf Cv Systems Europe BV
- Combined dirt collector and cutout cock having controlled venting2 Feb 2023US 2023/0035386 A1New York Air Brake Corporation
- Compressed-air braking system for a motor vehicle28 Apr 2022US 2022/0126805 A1Zf Cv Systems Europe BV
- Pressure equalization valve17 Feb 2022US 2022/0048485 A1Knorr-Bremse Systeme FüR Schienenfahrzeuge GmbH
Most cited
By later US patents
- Truck mounted pneumatic brake control system26US 4,653,812 AGeneral Signal Corporation · 1987
- Control valve device with change-over means for direct or graduated release operation21US 4,033,632 AWestinghouse Air Brake Company · 1977
- Microprocessor-based electropneumatic locomotive brake control system having pneumatic backup brake control16US 5,358,315 AWestinghouse Air Brake Company · 1994
- Automatic freight car brake apparatus with spring-applied fluid-pressure-released hand brake15US 4,033,629 AWestinghouse Air Brake Company · 1977
- Fluid pressure brake system with electronically assisted application and release15US 4,052,110 AGeneral Signal Corporation · 1977