Patent ID: 6502356
Filing Date: 2003-01-07
Classification: E06B

Abstract:
A profiled sash section for a window sash holding a window pane and intended for being installed in an outer frame of a blast resistant window, said sash section comprising:a main member enabling inter-engagement between the profiled sash member and the outer frame; a window pane holding member for accommodating and securing an end portion of said window pane in said profiled sash member; a reinforcing member designed to support the end portion of window pane and to transmit blast pressure, if incidentally applied to the window pane, to the main member; said sash section being characterized in that it includes damping means for deforming up to a predetermined limit for at least partially absorbing blast pressure energy applied to the window pane; wherein said damping means comprise at least one damping connector provided between at least one of the following three pairs: the reinforcing member and the window pane holding member, the reinforcing member and the main member, or the main member and the window pane holding member; and wherein the damping connector comprises at least one male-female coupling unit in a non-engaged or semi-engaged state; elements of the unit being fully engage able only when the incidental blast pressure is applied to the window pane.