EP 0000249 B1 19820728 - FLUID PRESSURE OPERABLE TRACTOR AND TRAILER VEHICLE BRAKING SYSTEMS
Title (en)
FLUID PRESSURE OPERABLE TRACTOR AND TRAILER VEHICLE BRAKING SYSTEMS
Publication
Application
Priority
GB 2670677 A 19770625
Abstract (en)
[origin: US4258959A] A tractor/trailer vehicle fluid pressure braking control system enabling two line control of trailer service and secondary braking includes for tractor braking a service brake control valve for controlling the fluid pressure applied both to service brake actuators and to a trailer service brake control line, a secondary control valve which controls the magnitude of a counteracting pressure applied to tractor spring brakes and also to a relay valve which controls a pressure in a trailer secondary spring brake control line.
IPC 1-7
IPC 8 full level
B60T 13/26 (2006.01); B60T 13/36 (2006.01); B60T 13/38 (2006.01); B60T 13/62 (2006.01); B60T 15/02 (2006.01)
CPC (source: EP US)
B60T 13/263 (2013.01 - EP US); B60T 13/268 (2013.01 - EP US); B60T 13/62 (2013.01 - EP US); B60T 15/02 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH DE FR GB NL
DOCDB simple family (publication)
EP 0000249 A1 19790110; EP 0000249 B1 19820728; DE 2861966 D1 19820916; IT 1159749 B 19870304; IT 7868480 A0 19780623; US 4258959 A 19810331; ZA 783491 B 19790627
DOCDB simple family (application)
EP 78300041 A 19780614; DE 2861966 T 19780614; IT 6848078 A 19780623; US 92726478 A 19780721; ZA 783491 A 19780619