66698 ⎘
Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups or; Application and release valves; Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere controlled by three fluid pressures with a quick braking action Railway control or brake valves with evacuation of air to a reservoir, to the atmosphere or to the brake cylinder
Sub-classes:Brake cylinder maintaining with improved pressure regulation
#2System for accessing integral pressures of brake control valve
#3Brake cylinder maintaining with improved pressure regulation
#4Control valve for automatic compressed-air brakes having a special valve housing
#5Brake cylinder maintaining with improved pressure regulation
#6Brake cylinder maintaining reference
#7Brake cylinder maintaining valve
#8Brake cylinder maintaining valve
#9Caliper brake device for a vehicle
#10System and method for accumulation of air for pneumatic railroad car systems