Deep mass compensation for a vehicle automatic climate control
Device for selective climate control in vehicle cabins
Dual mode input signal conditioner
Duct pressure synthesis for air distribution system
Energy recycling air handling system
Enhanced economizer controller
Environmental control method
Environmental control system
Environmental control system and method for storage buildings
Environmental control system and method for storage buildings
Environmental control system and method for storage buildings
Environmental control system for poultry houses
Floating actuator control system and method
Flow control damper
Forced air ventilating device
Fresh air ventilation control methods and systems
Global control of HVAC distribution system
Grain aeration systems and techniques
Grille controlling apparatus for indoor ventilator
Heating and/or air conditioning apparatus for motor vehicles