Window insulating air bag

Abstract

A window insulating air bag includes a bag body presenting a perimetrical seam therearound and an adhesive strip extending continuously around the seam to secure and seal the air bag to the interior frame of the window. The bag body is formed of first and second layers of elastic thin plastic film, with the first layer being thinner than the second layer. This relationship presents a ballooning layer upon bag inflation adapted to engage the window's casing but spaced apart from the interior surface of the window. Preferably, the second layer has an air valve formed therein for inflation of the bag. Alternatively, the air bag is used with a conventional storm window having a rigid self supporting sheet of glass adapted to be secured to a window's exterior frame with the flexible air bag as discussed above secured to the window's interior frame.

Dependencies are inferred from the claim text.