Louvered shutter having improved control means

Claim 1

A LOUVERED SHUTTER HAVING IMPROVED CONTROL MEANS COMPRISING: A FRAME STRUCTURE HAVING VERTICAL SIDE WALLS; A PLURALITY OF SPACED LOUVER BLADES EACH PIVOTALLY SUPPORTED AT EACH END BETWEEN AND TO SAID FRAME SIDE WALLS, SAID LOUVER BLADES PIVOTAL IN ONE DIRECTION SO THAT EACH BLADE OVERLAPS THE ADJACENT BLADES TO SUBSTANTIALLY PREVENT AIR FLOW THROUGH THE LOUVER AND PIVOTAL IN ANOTHER DIRECTION SO THAT EACH LOUVER BLADE IS SUBSTANTIALLY PARALLEL EACH OTHER PERMITTING THE FREE FLOW OF AIR THERETHROUGH; A PIVOT BRACKET AFFIXED TO EACH LOUVER BLADE; A BLADE ACTUATOR BAR PIVOTALLY AFFIXED TO EACH OF SAID PIVOT BRACKET WHEREBY THE LOUVER BLADES ARE COUPLED FOR SIMULTANEOUS PIVOTATION; AN ACTUATOR UPRIGHTLY SUPPORTED TO SAID FRAME STRUCTURE, THE ACTUATOR HAVING A PLUNGER WHICH, UPON ACTIVATION OF THE ACTUATOR, MOVES LINEARLY PERPENDICULAR TO THE PLANE OF SAID FRAME STRUCTURE; A TORGUE TUBE ROTATABLY SUPPORTED TO SAID VERTICAL SIDE WALLS PARALLEL TO AND ABOVE SAID LOUVER BLADES; A TORQUE ARM AFFIXED AT THE INNER END TO SAID TORQUE TUBE AND EXTENDING PERPENDICULARLY THEREFROM; A BLADE CONNECTOR LINK PIVOTALLY CONNECTED AT ONE END TO THE OUTER END OF SAID TORQUE ARM AND AT THE OTHER END OF SAID BLADE ACTUATOR BAR WHEREBY THE ROTATION OF SAID TORQUE TUBE PIVOTS SAID LOUVER BLADES; A TORQUE LEVER AFFIXED AT ONE END TO SAID TORQUE TUBE AND EXTENDING PERPENDICULARLY THEREFROM; A ROCKER ARM POSITIONED BENEATH SAID ACTUATOR AND PIVOTALLY AFFIXED AT A POINT INTERMEDIATE THE ENDS THEREOF TO THE LOWER END OF SAID ACTUATOR PLUNGER, ONE END OF SAID ROCKER ARM PIVOTALLY ATTACHED TO SAID FRAME STRUCTURE; AND A LINKAGE YOKE PIVOTALLY AFFIXED AT ONE END TO THE OTHER END OF SAID ROCKER ARM, THE OTHER END OF SAID YOKE PIVOTALLY AFFIXED TO THE OUTER END OF SAID TORQUE LEVER WHEREBY LINEAR MOVEMENT OF SAID ACTUATOR PLUNGER PIVOTS SAID ROCKER ARM WHICH IN TURN ROTATES SAID TORQUE TUBE FOR THE PIVOTATION OF SAID LOUVER BLADES.