Spacing strip for produce tray

Claim 1

IN COMBINATION: TWO PARALLEL ROWS OF RECTANGULAR PRODUCE TRAYS, EACH INCLUDING TO OPPOSITE END WALLS AND TWO OPPOSITE SIDE WALLS, A WIRE COUPLER CARRIED ON EACH END WALL, EACH COUPLER BEING LOCATED MIDWAY BETWEEN THE CONTAINER SIDE WALLS AND HAVING AN UPPER END NORMALLY PROJECTING ABOVE THE UPPER EDGE OF THE RESPECTIVE END WALL, SAID TRAYS BEING ARRANGED WITH SAID END WALLS PARALLEL TO THE ROWS OF TRAYS AND WITH THE TRAYS IN ONE ROW ALIGNED WITH AND LOCATED CLOSELY ADJACENT TO THE TRAYS IN THE OTHER ROW, AND A SPACER COMPRISING A RELATIVELY LONGITUDINALLY RIGID STRIP EXTENDING LENGTHWISE OF SAID ROWS ACROSS THE UPPER EDGES OF THE OPPOSING END WALLS OF THE TRAY IN THE TWO ROWS, AND SPACER HAVING TWO ROWS OF SLOTS EXTENDING LENGTHWISE OF THE SPACER AND RECEIVING SAID PROJECTING COUPLERS, RESPECTIVELY, AND EACH SLOT HAVING A CURVED LONGITUDINAL EDGE AND A SECOND LONGITUDINAL EDGE WHICH MEET AT THE ENDS OF THE SLOT TO DEFINE THEREBETWEEN RELATIVELY NARROW SLOT ENDS HAVING A WIDTH APPROXIMATELY EQUAL TO THE WIRE DIAMETER OF EACH COUPLER.