Sealing curtain assembly for door or window openings

Abstract

A sealing curtain assembly for door or window openings having a pair of tracks attached to frame members which are fixed to a base, a curtain having edges slidably engaging the tracks and being reversibly insertable into covers over each track, and hinges on each cover, whereby the hinges facilitate the lowering and raising of the curtain. Each track has a raised lip over which the curtain slides as the curtain moves up or down, the lip maintaining a seal against air flow, even when the curtain is distended upon the application of pressure. The bottom of the curtain has a weighted member and the base has spring clamps. As the curtain is lowered the weighted member engages the spring clamps causing the covers to press against the tracks, thereby providing a tight seal against airflow.

1 . A curtain assembly for covering an opening comprising:
 a) an elongated curtain having a first end mounted at a first end of the opening, an opposing second end that is moveable between the first end of the opening and an opposing second end of the opening, and opposing lateral sides slidably attached to opposing sides of the opening;   b) a track on each of the opposing sides of the opening, wherein each track has an outer edge and an inner edge;   c) said curtain having a flap attached to each of said latter sides;   d) a cover over each track, each cover being hinged to said outer edge of said track, and each cover having an inner tab and an outer tab; and   e) each of said lateral sides of said curtain fitting over said lip of said track, wherein said flap engages said inner tab of said cover and said lateral edge engages said outer tab of said cover.   
   
   
       2 . The curtain assembly of  claim 1  wherein said covers are biased towards said tracks to retain said curtain against said track to maintain said curtain taut. 
   
   
       3 . The curtain assembly of  claim 1 , further comprising said inner edges of said tracks having lips. 
   
   
       4 . The curtain assembly of  claim 1  further comprising a weighted member at said second end of said curtain. 
   
   
       5 . The curtain assembly of  claim 4 , further comprising spring clamps at the opposing second end of the opening to secure said weighted member and bias said weighted member against said covers to bias said covers against said tracks. 
   
   
       6 . The curtain assembly of  claim 1 , further comprising a rotatable shaft and motor to wind and unwind said curtain to lower and raise said curtain along the opening. 
   
   
       7 . A curtain assembly for covering an opening comprising:
 a) an elongated curtain having a first end mounted at a first end of the opening, an opposing second end that is moveable between the first end of the opening and an opposing second end of the opening, and opening lateral sides slidably attached to opposing sides of the opening;   b) a track on each of the opposite sides of the opening, wherein each track has an outer edge and an inner edge, said inner edge having a lip;   c) said curtain having a flap attached to each of said lateral sides;   d) a cover over each track, each cover being hinged to said outer edge of said track, and each cover having an inner tab and an outer tab; and   e) each of said lateral sides of said curtain fitting over said tip of said track, wherein said flap engages said inner tab of said cover, said lateral edge engages said outer tab of said cover, and said cover is biased towards said track to retain said curtain against said track to maintain said curtain taut when said curtain covers said opening.   
   
   
       8 . The curtain assembly of  claim 7 , further comprising a weighted member at said second end of said curtain. 
   
   
       9 . The curtain assembly of  claim 8 , further comprising spring clamps at the opposing second end of the opening to secure said weighted member and bias said weighted member against said covers to bias said covers against said tracks. 
   
   
       10 . The curtain assembly of  claim 1 , further comprising a rotatable shaft and motor to wind and unwind said curtain to lower and raise said curtain along the opening. 
   
   
       11 . A curtain assembly for covering an opening comprising:
 a) an elongated curtain having a first end mounted at a first end of the opening, an opposing second end that is moveable between the first end of the opening and an opposing second end of the opening, and opposing lateral sides slidably attached to opposing sides of the opening;   b) a track on each of the opposing sides of the opening, wherein each track has an outer edge and an inner edge, said inner edge having a lip;   c) said curtain having a flap attached to each of said lateral sides;   d) a cover over each track, each cover being hinged to said outer edge of said track, and each cover having an inner tab and an outer tab;   e) each of said lateral sides of said curtain fitting over said lip of said track, wherein said flap engages said inner tab of said cover and said lateral edge engages said outer tab of said cover; and   f) a weighted member at said second end of said curtain, and spring clamps at the opposing second end of the opening to secure said weighted member and bias said weighted member against said covers to bias said covers against said tracks to maintain said curtain taut when said curtain covers said opening.   
   
   
       12 . The curtain assembly of  claim 11 , further comprising a rotatable shaft and motor to wind and unwind said curtain to lower and raise said curtain along the opening. 
   
   
       13 . A curtain assembly for covering an opening comprising:
 a) an elongated curtain having a first end mounted at a first end of the opening, an opposing second end that is moveable between the first end of the opening and an opposing second end of the opening, and opposing lateral sides slidably attached to opposing sides of the opening;   b) a track on each of the opposing sides of the opening, wherein each track has an outer edge and an inner edge, said inner edge having a lip;   c) said curtain having a flap attached to each of said lateral sides;   d) a cover over each track, each cover being hinged to said outer edge of said track, and each cover having an inner tab and an outer tab;   e) each of said lateral sides of said curtain fitting over said lip of said track, wherein said flap engages said inner tab of said cover and said lateral edge engages said outer tab of said cover; and   f) a weighted member at said second end of said curtain, and spring clamps at the opposing second end of the opening to secure said weighted member and bias said weighted member against said covers to bias said covers against said tracks to maintain said curtain taut when said curtain covers said opening; and   g) a rotatable shaft and motor to wind and unwind said curtain to lower and raise said curtain along the opening.