Patent ID: 8899654
Filing Date: 2014-12-02
Classification: B60J,B61D,Y10T

Abstract:
1. An exit structure, comprising: a frame assembly defining at least one frame aperture; a removable panel configured to secure to the frame assembly and defining at least one removable panel aperture configured to align within the frame aperture; and at least one fastener that is configured to extend through a corresponding one of the removable panel aperture and the frame aperture and to thereby removably couple the panel to the frame assembly; wherein the at least one fastener is one of a plurality of fasteners, and the number of fasteners is selected so as to support the removable panel in the frame assembly for preventing the removable panel from being removed from the frame assembly by an object with a kinetic energy of 300 joules impacting on the removable panel when the fasteners are in place.