Fully Close Vent Device for Heating and Air Conditioning System

Abstract

A vent device includes a vent frame and a fin arrangement. The vent frame includes a ventilating opening and a peripheral frame portion adapted for mounting at an air outlet of a heating and air conditioning system. The fin arrangement includes a plurality of vent fins longitudinally and rotatably supported at the ventilating opening, wherein each of the vent fins has first and second longitudinal sealing edges. When the vent fins are concurrently moved in an opened position, the vent fins are rotated to parallel with each other for allowing air passing through. When the vent fins are concurrently moved in a closed position, the first longitudinal sealing edge of each of the vent fins is overlappedly engaged with the second longitudinal sealing edge of the adjacent vent fin to completely seal the ventilating opening of the vent frame in an air sealing manner.

What is claimed is: 
     
         1 . A vent device for a heating and air conditioning system having at least an air outlet, comprising:
 a vent frame having a peripheral frame portion adapted for mounting at said air outlet in an air-sealing manner, and a ventilating opening defined within said peripheral frame portion; and   a plurality of vent fins longitudinally and rotatably supported at said ventilating opening to be concurrently moved between an opened position and a closed position, wherein each of said vent fins has a first longitudinal sealing edge and a second longitudinal sealing edge, such that when said vent fins are concurrently moved in said opened position, said vent fins are rotated to parallel with each other to form a plurality of ventilating slots between every two of said adjacent vent fins for allowing air passing through, and when said vent fins are concurrently moved in said closed position, said first longitudinal sealing edge of each of said vent fins is overlappedly engaged with said second longitudinal sealing edge of said adjacent vent fin so as to completely seal said ventilating opening of said vent frame in an air sealing manner.   
     
     
         2 . The vent device, as recited in  claim 1 , wherein each of said vent fins comprises an elongated fin body rotatably supported at said ventilating opening and an air sealing element encirclingly extended along a peripheral edge of said fin body to form said first longitudinal sealing edge and said second longitudinal sealing edge. 
     
     
         3 . The vent device, as recited in  claim 1 , wherein each of said vent fins further has an elongated first sealing seat raised from an upper side of said vent fin and extended along said first longitudinal sealing edge, and an elongated second sealing seat indented from a bottom side of said vent fin and extended along said second longitudinal sealing edge, such that in said closed position, said first sealing seat of said vent fin is rested on said second sealing seat of said adjacent vent fin to completely seal said first longitudinal sealing edge of said vent fin with said second longitudinal sealing edge of said adjacent vent fin. 
     
     
         4 . The vent device, as recited in  claim 2 , wherein each of said vent fins further has an elongated first sealing seat raised from an upper side of said vent fin and extended along said first longitudinal sealing edge, and an elongated second sealing seat indented from a bottom side of said vent fin and extended along said second longitudinal sealing edge, such that in said closed position, said first sealing seat of said vent fin is rested on said second sealing seat of said adjacent vent fin to completely seal said first longitudinal sealing edge of said vent fin with said second longitudinal sealing edge of said adjacent vent fin. 
     
     
         5 . The vent device, as recited in  claim 3 , wherein a depth of said first sealing seat is the same as a depth of said second sealing seat, such that in said closed position, said vent fins are aligned and overlapped edge-to-edge to form a flat planar configuration. 
     
     
         6 . The vent device, as recited in  claim 4 , wherein a depth of said first sealing seat is the same as a depth of said second sealing seat, such that in said closed position, said vent fins are aligned and overlapped edge-to-edge to form a flat planar configuration. 
     
     
         7 . The vent device, as recited in  claim 4 , wherein each of said fin bodies is bent to form said first and second sealing seats. 
     
     
         8 . The vent device, as recited in  claim 6 , wherein each of said fin bodies is bent to form said first and second sealing seats. 
     
     
         9 . The vent device, as recited in  claim 4 , wherein said vent frame further comprises an elongated first longitudinal ledge protruded along a first longitudinal wall of said ventilating opening for engaging with said first sealing seat of said vent fin where close to said first longitudinal wall, and a U-shaped second longitudinal ledge protruded along a second longitudinal wall of said ventilating opening for engaging with said second sealing seat of said vent fin where close to said second longitudinal wall. 
     
     
         10 . The vent device, as recited in  claim 6 , wherein said vent frame further comprises an elongated first longitudinal ledge protruded along a first longitudinal wall of said ventilating opening for engaging with said first sealing seat of said vent fin where close to said first longitudinal wall, and a U-shaped second longitudinal ledge protruded along a second longitudinal wall of said ventilating opening for engaging with said second sealing seat of said vent fin where close to said second longitudinal wall. 
     
     
         11 . The vent device, as recited in  claim 1 , wherein said vent frame further comprises a frame sealing element encirclingly extended along said peripheral frame portion adapted for mounting at said air outlet in an air-sealing manner. 
     
     
         12 . The vent device, as recited in  claim 10 , wherein said vent frame further comprises a frame sealing element encirclingly extended along said peripheral frame portion adapted for mounting at said air outlet in an air-sealing manner. 
     
     
         13 . The vent device, as recited in  claim 1 , further comprising a control module for automatically controlling said vent fins between said opened position and said closed position, wherein said control module comprises a motorized unit supported by said vent frame and an actuation link operatively linked between said motorized unit and a rotatable shaft of each of said vent fins, such that when said motorized unit is activated, said vent fins are concurrently moved between said opened position and said closed position. 
     
     
         14 . The vent device, as recited in  claim 4 , further comprising a control module for automatically controlling said vent fins between said opened position and said closed position, wherein said control module comprises a motorized unit supported by said vent frame and an actuation link operatively linked between said motorized unit and a rotatable shaft of each of said vent fins, such that when said motorized unit is activated, said vent fins are concurrently moved between said opened position and said closed position. 
     
     
         15 . The vent device, as recited in  claim 12 , further comprising a control module for automatically controlling said vent fins between said opened position and said closed position, wherein said control module comprises a motorized unit supported by said vent frame and an actuation link operatively linked between said motorized unit and a rotatable shaft of each of said vent fins, such that when said motorized unit is activated, said vent fins are concurrently moved between said opened position and said closed position. 
     
     
         16 . The vent device, as recited in  claim 13 , wherein said control module further comprises a remote controller wirelessly controlling said motorized unit to concurrently move said vent fins between said opened position and said closed position. 
     
     
         17 . The vent device, as recited in  claim 15 , wherein said control module further comprises a remote controller wirelessly controlling said motorized unit to concurrently move said vent fins between said opened position and said closed position. 
     
     
         18 . The vent device, as recited in  claim 13 , wherein said control module further comprises a motion sensor operatively linked said motorized unit to concurrently move said vent fins between said opened position and said closed position in response to a presence of a user. 
     
     
         19 . The vent device, as recited in  claim 15 , wherein said control module further comprises a motion sensor operatively linked said motorized unit to concurrently move said vent fins between said opened position and said closed position in response to a presence of a user. 
     
     
         20 . The vent device, as recited in  claim 13 , wherein said control module further comprises a temperature sensor operatively linked said motorized unit to concurrently move said vent fins between said opened position and said closed position in response to an interior temperature detected by said temperature sensor. 
     
     
         21 . The vent device, as recited in  claim 15 , wherein said control module further comprises a temperature sensor operatively linked said motorized unit to concurrently move said vent fins between said opened position and said closed position in response to an interior temperature detected by said temperature sensor. 
     
     
         22 . The vent device, as recited in  claim 13 , wherein said control module further comprises a thermostat unit which comprises a vent control circuit operatively linked said motorized unit to concurrently move said vent fins between said opened position and said closed position, and a system circuit for operatively controlling said heating and air conditioning system. 
     
     
         23 . The vent device, as recited in  claim 15 , wherein said control module further comprises a thermostat unit which comprises a vent control circuit operatively linked said motorized unit to concurrently move said vent fins between said opened position and said closed position, and a system circuit for operatively controlling said heating and air conditioning system.