Pattern controllers for active beam

Abstract

Pattern controllers located in discharge slots of an active beam comprise a series of planar paddles hinged on an axis disposed at an angle to the planar surface of a side of the discharge slot thereby producing discharged air displacement in both the horizontal and vertical directions when the paddles are rotated.

I claim: 
     
         1 . In an active beam with a discharge slot having inner sides and outer sides that define a discharge plane oriented parallel to one of the sides of the discharge slot, the discharge slot further having perpendicularly connected end panels defining an end panel plane, pattern controllers comprising:
 a. a series of planar paddles located in the discharge slot of the active beam and connected to one of the sides of the discharge slot, each planar paddle hinged for rotation about an axis oriented at an angle to the discharge plane; and   b. an index keeper for maintaining the rotational position of at least one of the series of the hinged paddle.   
     
     
         2 . The pattern controllers of  claim 1 , wherein the axis is also oriented parallel to the end panel plane. 
     
     
         3 . The pattern controllers of  claim 2 , wherein the each planar paddle rotates about the axis between −45° and +45° from a position parallel the end panel plane. 
     
     
         4 . The pattern controllers of  claim 3 , wherein the angle of the axis is set at approximately a 60°±20° angle to the discharge plane. 
     
     
         5 . The pattern controllers of  claim 1 , wherein the each planar paddle rotates about the axis between −45° and +45° from a position parallel the end panel plane. 
     
     
         6 . The pattern controllers of  claim 5 , wherein the angle of the axis is set at approximately a 60°±20° angle to the discharge plane. 
     
     
         7 . The pattern controllers  claim 1 , wherein the series of planar paddles are connected to the outer side of the discharge slot. 
     
     
         8 . The pattern controllers of  claim 7 , wherein the angle of the axis is set at approximately a 60°±20° angle to the discharge plane. 
     
     
         9 . The pattern controllers of  claim 1 , wherein a plurality of planar paddles in the series of planar paddles are connected for simultaneous rotation and wherein one of the plurality of planar paddles engages the index keeper for maintaining the rotational position of the plurality of planar paddles.