ZA90338B - Independent continual quick service valve device - Google Patents
Independent continual quick service valve deviceInfo
- Publication number
- ZA90338B ZA90338B ZA90338A ZA90338A ZA90338B ZA 90338 B ZA90338 B ZA 90338B ZA 90338 A ZA90338 A ZA 90338A ZA 90338 A ZA90338 A ZA 90338A ZA 90338 B ZA90338 B ZA 90338B
- Authority
- ZA
- South Africa
- Prior art keywords
- independent
- valve device
- service valve
- quick service
- continual quick
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/36—Other control devices or valves characterised by definite functions
- B60T15/42—Other control devices or valves characterised by definite functions with a quick braking action, i.e. with accelerating valves actuated by brake-pipe pressure variation
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/297,721 US4875739A (en) | 1989-01-17 | 1989-01-17 | Independent continual quick service valve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA90338B true ZA90338B (en) | 1990-10-31 |
Family
ID=23147469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA90338A ZA90338B (en) | 1989-01-17 | 1990-01-17 | Independent continual quick service valve device |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4875739A (fr) |
| CN (1) | CN1044263A (fr) |
| AU (1) | AU627535B2 (fr) |
| BR (1) | BR9000169A (fr) |
| CA (1) | CA2005295C (fr) |
| ZA (1) | ZA90338B (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2939746B1 (fr) * | 2008-12-11 | 2012-06-01 | Freinrail Systemes Ferroviaires Sa | Dispositif d'aide au freinage de materiel ferroviaire roulant. |
| US10029666B2 (en) | 2015-03-19 | 2018-07-24 | Westinghouse Air Brake Technologies Corporation | Hot wheel protection valve |
| US9925969B2 (en) | 2016-03-07 | 2018-03-27 | Westinghouse Air Brake Technologies Corporation | Cut-off valve and hot wheel protection valve arrangement |
| US10059320B2 (en) | 2017-01-25 | 2018-08-28 | Westinghouse Air Brake Technologies Corporation | Automatic retainer valve |
| US10272894B2 (en) * | 2017-03-07 | 2019-04-30 | Amsted Rail Company, Inc. | Control valve and method for operating a control valve for a rail car brake system |
| CN115489563A (zh) * | 2022-08-03 | 2022-12-20 | 成都威奥轨道科技有限公司 | 一种实现长大列车快速同步制动的方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3716276A (en) * | 1971-10-27 | 1973-02-13 | Westinghouse Air Brake Co | Quick service valve device |
| US4157849A (en) * | 1975-08-16 | 1979-06-12 | Westinghouse Brake & Signal Company Limited | Continuous quick service apparatus for vehicle braking control |
| US3988044A (en) * | 1975-12-22 | 1976-10-26 | Westinghouse Air Brake Company | Continual quick service valve device with fast charging means |
| US4103977A (en) * | 1976-07-26 | 1978-08-01 | Westinghouse Brake & Signal Co. Ltd. | Vehicle braking control valve apparatus for quick service operation |
| US4145090A (en) * | 1977-03-21 | 1979-03-20 | Westinghouse Air Brake Company | Continual quick service valve device |
| US4175792A (en) * | 1977-03-21 | 1979-11-27 | Westinghouse Air Brake Company | Continual quick service valve device |
| US4073544A (en) * | 1977-03-23 | 1978-02-14 | Westinghouse Air Brake Company | Continual quick service valve device |
| IN150400B (fr) * | 1977-12-15 | 1982-09-25 | Westinghouse Brake & Signal | |
| DE3127775A1 (de) * | 1981-07-14 | 1983-02-03 | Knorr-Bremse GmbH, 8000 München | "betriebsbremsbeschleuniger fuer schienenfahrzeug-druckluftbremsanlagen" |
-
1989
- 1989-01-17 US US07/297,721 patent/US4875739A/en not_active Expired - Lifetime
- 1989-12-12 CA CA002005295A patent/CA2005295C/fr not_active Expired - Fee Related
-
1990
- 1990-01-10 AU AU47849/90A patent/AU627535B2/en not_active Ceased
- 1990-01-17 BR BR909000169A patent/BR9000169A/pt not_active IP Right Cessation
- 1990-01-17 ZA ZA90338A patent/ZA90338B/xx unknown
- 1990-01-17 CN CN90100349A patent/CN1044263A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| BR9000169A (pt) | 1990-10-23 |
| AU627535B2 (en) | 1992-08-27 |
| CA2005295A1 (fr) | 1990-07-17 |
| AU4784990A (en) | 1990-07-26 |
| CA2005295C (fr) | 1994-11-08 |
| CN1044263A (zh) | 1990-08-01 |
| US4875739A (en) | 1989-10-24 |
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