Damper blade control
Damper control device
Damper control in space heating and cooling
Damper for an air distribution system
Damper for controlling air flow through a passage
Data storage system having cooling fan speed protection
Deep mass compensation for a vehicle automatic climate control
Device for selective climate control in vehicle cabins
Device for simultaneous control of air flow and circulation spee
Drive mechanism for controlling a fluid flow
Dual mode input signal conditioner
Duct pressure powered air volume controller
Duct pressure synthesis for air distribution system
Duct type air conditioning system