Patent ID: 8443909
Filing Date: 2013-05-21
Classification: A62C,E06B

Abstract:
1. A fire shutter adapted to close off an area, the fire shutter comprising: a shutter curtain movable within a frame from an up position to a closed position, wherein the shutter curtain closes off the area when in the closed position; and at least one retractable guide, located within the frame and movable from a retracted position to an extended position and having a camber; wherein the shutter curtain engages the at least one retractable guide as the shutter curtain moves from the up position toward the closed position, biasing the at least one retractable guide to the retracted position, and in the closed position the shutter curtain engages the camber and allows the at least one retractable guide to move to the extended position; wherein the frame defines at least a first pair of flanges which extend toward each other, and the shutter curtain comprises front slats connected to rear slats and wherein the flanges overlie opposed end portions of the front and rear slats of the shutter curtain; and wherein the at least one retractable guide has a lower end, each flange has a ramped foot adjacent the lower end, and the front slats and rear slats are biased toward each other by the ramped feet when the shutter curtain is in the closed position.