Window structure

Details Window structure Window structure

E - Fixed Constructions

06

B

E06B 7/00 (2006.01)

Patent

CA 2146061

In window units comprising a window sash or frame and a moveable sash carrying panes of glass thereon, the sash being adapted for movement to an open and a closed position relative to the frame. There is a collapsible screen means, preferably of sheet plastic, either translucent or clear, and preferably of mylar?, appropriately perforated so as to allow air to pass when in the open extended position and adapted to travel, in one aspect, between opposite members of the frame so as to enclose an overcovering between sash and frame, when fully open, and to collapse when in the closed position so as to not overcover the opening between sash and frame. This requires that the flexible Mylar? screen be constructed as an accordion-like member with bevels which extend open or collapsed closed depending upon the position of the screen.

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