Rotary drum humidifier
Rotary flow control balancing valve for cross-flow cooling tower
Rotary gas washers
Rotary heat and/or mass transfer arrangements
Rotary surface aerator with adjustable liquid transporting units
Rotary surface aerators
Rotating gas diffuser
Rotating humidifier
Rotor adapted to rotate about a rotary shaft
Rotor film column for making contact between gas and liquid
Rotor film mass and heat exchanger
Rotor-carburetor having an idling mixture arrangement for intern
Rotor-type carburetor apparatus and associated methods