Nacelle inlet for an aircraft gas turbine engine
Natural gas compression heating process
Natural gas pipe storage facility
Natural gas shut off system
Nipple with integral crossbar actuator and check valve
No-drip check valves
Noise suppression refracting inlet for jet engines
Non-circulating, rapid, hot tap water apparatus and method
Non-degrading pressure regulator
Non-interrupting gas meter exchange system
Non-leaking valve
Non-linear level controller
Non-mechanical valves for fluidic systems
Non-refillable valve for a gas cylinder
Non-return valve
Non-return valve
Non-stick treatment for elastomeric slit valves
Noninvasive valve monitor using alternating electromagnetic fiel
Nonlinear control of liquid level
Normally closed in-channel micro check valve