Clamp for a water storage tank

Abstract

A clamp for securing a flexible sheet to the upper portion of a wall of a water tank includes a pair of thin, flexible strips spaced apart by a plurality of spacers near a top portion of the strips. At least one rod or threaded bolt extends through holes provided in the strips below the spacers. Nuts carried by the rod or bolt can be moved inwardly so as to deflect the flexible sheets inwardly thereby clamping the flexible sheet between the clamp and the tank wall.

1 . A clamp for securing a flexible sheet extending over a top portion of a tank wall comprising:
 a first strip of flexible material,   a second strip of flexible material spaced from the first strip by a plurality of spacers positioned between the strips at an upper portion thereof,   the first strip, second strip and spacers forming an assembly having an open top and open bottom; and   means for causing at least one of the strips to flex inwardly thereby clamping the sheet to an upper portion of the tank.   
     
     
         2 . A clamp as claimed in  claim 1  wherein the first and second strips are curved to conform to the curvature of the tank wall. 
     
     
         3 . A clamp as claimed in  claim 1  wherein the means for causing at least one of the strips to flex inwardly comprises at least one threaded rod extending through the strips and a nut threaded on the rod whereby as the nut is threaded inwardly on the rod, it will engage one of the strips and deflect it inwardly. 
     
     
         4 . A clamp as claimed in  claim 1  wherein the means for causing at least one of the strips to flex inwardly comprises at least one threaded rod extending through the strips and first and second nuts threadedly positioned on opposite ends of the rod whereby as the nuts are rotated inwardly they will engage the first and second strips and deflect them inwardly. 
     
     
         5 . A clamp as claimed in  claim 3  wherein at least one rod extends through the strips at a position below the spacers. 
     
     
         6 . A clamp as claimed in  claim 1  wherein the spaces are V-shaped.