| 摘要 |
A storm window for sealing the entire interior surface of an existing window in a building. The storm window includes a flexible sheet which is extendably and retractably deployed from a shade roller mounted at the top of the existing window. A hinged cover member surrounds the roller and engages the top of the sheet to form an air tight seal therebetween. Hinged clamping members are mounted along the sides of the existing window and clampingly engage the side edges of the sheet when the sheet is in the full extended position to form an air tight seal. A drawbar is secured to the bottom edge of the sheet and has a sealing strip mounted to the bottom surface thereof to sealingly engage the window sill when the sheet is in the full extended position. The drawbar is biased into the sealing position by a boss which extends from the clamping member and engages a flange on the drawbar.
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