B60T 8/1825
Means for changing the diaphragm area submitted to pressure
Official title: {Means for changing the diaphragm area submitted to pressure}
B60T8/1825 (Means for changing the diaphragm area submitted to pressure) appears on 12 US grants and 1 published applications in this corpus.
Search patents in B60T- Granted patents
- 12
- Published applications
- 1
- Assignees
- 6
- Inventors
- 10
- Latest grant
- 8 Sep 1992
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 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 | 0 |
| 2016 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Variable load valve for railway vehicles8 Sep 1992US 5,144,985 ANippon Air Brake Co., Ltd.
- Load dependent valve for railway vehicles17 Apr 1990US 4,917,148 ANippon Air Brake Co., Ltd.
- Railway car pressure control valves28 Nov 1989US 4,883,089 ANippon Air Brake Co., Ltd.
- Load controller brake force controller for pneumatic motor vehicle or motor vehicle trailer brake systems19 May 1987US 4,666,217 AWABCO Westinghouse GmbH
- Load-dependent brake pressure regulator for motor vehicle and/or trailer brake systems3 Feb 1987US 4,640,556 AWABCO Westinghouse Fahrzeugbremsen GmbH
Most cited
By later US patents
- Load-dependent brake pressure regulator for motor vehicle and/or trailer brake systems7US 4,640,556 AWABCO Westinghouse Fahrzeugbremsen GmbH · 1987
- Vehicle load-controlled brake pressure regulating valve device5US 4,145,089 AWABCO Westinghouse GmbH · 1979
- Load dependent valve for railway vehicles5US 4,917,148 ANippon Air Brake Co., Ltd. · 1990
- Automatic load-dependent brake power regulator for vehicles4US 4,109,969 AWABCO Westinghouse GmbH · 1978
- Vehicle load-controlled brake pressure regulating valve device4US 4,125,290 AWABCO Westinghouse GmbH · 1978