Combined acoustic wall and exhaust gas deflector in operation of jet engines

Claim 1

APPARATUS FOR USE IN THE OPEN FOR DEFLECTING JETENGINE EXHAUST GASES UPWARDLY INTO THE ATMOSPHERE, COMPRISING A PLURALITY OF HORIZONTALLY POSITIONED, SPACEDAPART, AND PARALLEL CONCAVE-CONVEX VANES OF SUBSTANTIALLY AIRFOIL CROSS SECTION, MEANS FOR SUPPORTING SAID VANES ON AN ANGLE OF STAGGER WITH RESPECT TO THE GROUND AND DIRECTED TOWARD THE SOURCE OF SAID GASES, EACH OF SAID VANES BEING ARRANGED WITH THE CONCAVE SIDES PLACED UPWARDLY AND TOWARD THE SOURCE AND WITH THE TANGENTS TO THE AIRFOIL MEAN LINES POSITIONED SUBSTANTIALLY HORIZONTALLY AT THE LEADING EDGES AND SUBSTANTIALLY VERTICALLY AT THE TRAILING EDGES, AND A GROUND-SUPPORTED SUBSTANTIALLY PLANAR VERTICAL SOUND DEADENING WALL EXTENDING TRANSVERSELY WITH RESPECT TO THE DIRECTION OF FLOW OF SAID GASES AND PARALLEL TO SAID VANES, SAID WALL BEING POSITIONED IN THE FREE ATMOSPHERE NEAR THE VANE LOCATED LOWEST IN HEIGHT AND FARTHEST IN HORIZONTAL DISTANCE FROM THE SOURCE OF SAID GASES AND EXTENDING VERTICALLY UPWARDLY TO A HIGHER ELEVATION THAN THE VANE LOCATED UPPERMOST AND NEAREST THE SOURCE OF SAID GASES AND BEING CONNECTED TO SAID SUPPORTING MEANS.