Rack and pinion pneumatic actuator with counter-pressure...
Rack and pinion power steering gear mechanism
Radial vane gas throttling valve for vacuum systems
Railroad car retarders
Railway tie cutter and remover
Ram assembly with floating piston seal
Ram attitude control system
Ram with two-part piston rod
Ratchet
Rate of pressure rise limiting valve
Reaction mechanism for a tandem brake booster
Reaction mechanism for brake booster
Reaction-jet turbine
Rearview mirror
Reciprocating drive means
Reciprocating piston fluid powered motor
Reciprocatory telescoping-piston hydraulic motor
Reducing valve
Redundant control actuation system-concentric direct drive...
Redundant fluidic multiplexer