Means for controlling fluid streams to fluid devices

Official title: Means for controlling fluid streams to fluid devices, e.g. by electric signals {or other signals, no mixing taking place between the signal and the flow to be controlled (fluid information or pulse transducers F15B5/00; electric regulation with electro-fluid amplifiers G05B7/02; fluid operating means for indicating or recording members in measuring instruments G01D5/42; distribution or supply devices for servomotors with electrically-controlled pilot valves F15B13/043)}

F15C1/04 (Means for controlling fluid streams to fluid devices) appears on 48 US grants and 16 published applications in this corpus.