초록 ▼

A modular automatic power flow fresh air inlet comprising a housing having fresh air openings between a source of fresh air and a room, having an adjustable static pressure to be ventilated. The fresh air openings may be controlled by a valve plate pivotally connected to the housing at each opening.

A modular automatic power flow fresh air inlet comprising a housing having fresh air openings between a source of fresh air and a room, having an adjustable static pressure to be ventilated. The fresh air openings may be controlled by a valve plate pivotally connected to the housing at each opening. The valve plates pivot relative to the static pressure in the room. A cable having first and second ends extends through the housing and is connected to the valve plates via a lanyard. A cable control device for moving the cable between a forward position and a rearward position is connected to the first end of the cable. A cable counter weight is attached to the second end of the cable. Moving the cable toward the forward position places tension on the lanyard, causing the valve plate to pivot from the static position toward to the fully opened position. Moving the cable toward the rearward position relaxes the tension in the lanyard, causing the valve plate to pivot toward the static position. A plurality of fresh air inlets may thereby be connected in series via the cable for regulating an air flow course within a building.

대표청구항 ▼

[ I claim:] [1.] An automatic fresh air inlet comprising:(a) a housing comprising two end walls, each end wall having a means for engaging, and a top wall having at least one fresh air opening;(b) at least one valve plate pivotally connected to the housing and adjacent the fresh air opening, an air

[ I claim:] [1.] An automatic fresh air inlet comprising:(a) a housing comprising two end walls, each end wall having a means for engaging, and a top wall having at least one fresh air opening;(b) at least one valve plate pivotally connected to the housing and adjacent the fresh air opening, an air passage way defined between the valve plate and the housing;(c) a cable slidably connected to said means for engaging, said cable having a first end and a second end;(d) a cable counter weight connected to said second end of said cable;(e) a valve lanyard adjustably connected to said valve plate and to said cable; and(f) a cable control mechanism connected to said first end of said cable.