Adjustable register incorporating a toggle-joint mechanism...
Adjustable roof ventilator base
Adjustable roof ventilator jack
Adjustable slot diffuser
Adjustable terminal basket with light weight, horizontal...
Adjustable valve for variable flows and a method for...
Adjustable vent
Advanced proof-of-rotation switch
Aeration device for closed volume
Aeration structure in buildings
Aerator
Agricultural or industrial building ventilation system that...
Air access panel
Air actuated vehicle temperature control system
Air and heat circulation systems for buildings
Air aspirating methods and apparatus for heating or cooling...
Air bar
Air barrier device using pressurized swirls
Air blender
Air blender for air conditioning having a temperature and...