Patent ID: 6042475
Filing Date: 2000-03-28
Classification: A01K,F24F

Abstract:
Apparatus for controlling temperature and ventilation in an animal confinement building, comprising:(a) a plurality of semi-rigid elongate panels, each of said panels having a planar surface disposed substantially vertically with a top edge and a bottom edge thereof extending substantially horizontally;(b) a flexible suspension member connected at spaced apart intervals to said top edge of each of said panels so that said panels reside in cascaded relation with a bottom edge of a first of said panels overlapping a top edge of a second of said panels when said suspension member is retracted upwardly;(c) means for extending and retracting said suspension member adjacent an aperture formed through a wall of said building and operative for alternately extending said suspension member downwardly to lower said panels and retracting said suspension member upwardly to raise said panels; and(d) a retainer mounted parallel to said wall adjacent said aperture and adapted to slideably contact said panels.