Ventilation panels having curved openings and structures incorporating such ventilation panels

Abstract

Pliable ventilation panels having curved openings provided at opposing locations with respect to a midline that are selectively openable and closeable are disclosed. The ventilation panels are generally fabricated from pliable materials and may be opened at one or more locations along the opening(s) to provide ventilation and/or access at different locations along the opening(s).

1 . A ventilation panel having at least two curved openings extending in each of opposite directions away from a midline, wherein each of the curved openings is selectively openable and closeable to provide ventilation selectively at multiple locations along the opening. 
     
     
         2 . The ventilation panel of  claim 1 , fabricated from a pliable material. 
     
     
         3 . The ventilation panel of  claim 1 , additionally comprising at least one zipper mechanism providing selective opening and closing of each of the at least two curved openings. 
     
     
         4 . The ventilation panel of  claim 3 , wherein the at least one zipper operates bi-directionally. 
     
     
         5 . The ventilation panel of  claim 1 , wherein the at least two curved openings have substantially the same configuration. 
     
     
         6 . The ventilation panel of  claim 5 , wherein the curved openings are arranged symmetrically with respect to the midline. 
     
     
         7 . The ventilation panel of  claim 1 , wherein the at least two curved openings have different configurations. 
     
     
         8 . The ventilation panel of  claim 1 , wherein a first curved opening is openable from an upper region toward a central region of the ventilation panel and a second curved opening is openable from a lower region toward a central region of the ventilation panel. 
     
     
         9 . The ventilation panel of  claim 1 , additionally comprising at least two fasteners for securing flaps released when the at least two curved openings are in an open condition. 
     
     
         10 . The ventilation panel of  claim 1 , additionally comprising a substantially continuous base edge that is releasable to an open condition at at least one location. 
     
     
         11 . A tent structure incorporating a ventilation panel of  claim 1 . 
     
     
         12 . A substantially rigid framework incorporating a ventilation panel of  claim 1 .