A grille having a plurality of s-louvers shaped to increase the efficiency of air flow through the grille without decreasing the effectiveness of the louvers at stopping or deflecting projectiles. Each louver has a hooked portion at the end of the louver to present a ballistic hook for stopping projectiles ricocheting through the circuitous path defined between the louvers. An insert having a closeout for covering the ballistic hook is positioned within each hooked shape portion to eliminate the eddy or stall created at the end of the circuitous path by ballistic hook. The closeout can be penetrated by projectiles ricocheting through the circuitous path such that the ballistic hook can still capture projectiles within the inlet.
申请公布号
US2012240757(A1)
申请公布日期
2012.09.27
申请号
US201213415464
申请日期
2012.03.08
申请人
SCHADE DAVID ARTHUR;PIKE TORREY;THOMAS GEORGE;NGUYEN QUAN;IWEN MIKE
发明人
SCHADE DAVID ARTHUR;PIKE TORREY;THOMAS GEORGE;NGUYEN QUAN;IWEN MIKE