Pocket isolating form and lid therefor

Abstract

A round pocket isolating form is placed around column footer before a concrete form is poured, to keep concrete away from anchor bolts protruding upward from the footer. A round lid for the form is also disclosed.

I claim: 
     
         1 . A lid for a round pocket isolator form, said lid having a generally flat top, a circular periphery, and reinforcing structure on the bottom surface of the lid to enable the lid to withstand traffic thereon. 
     
     
         2 . The invention of  claim 1 , further comprising a vertical support fastened to the lid at the center of the lid, and extending downward from the bottom surface of the lid a distance substantially equal to the height of the wall. 
     
     
         3 . The invention of  claim 1 , wherein the lid is made by injection molding of a plastic material. 
     
     
         4 . The invention of  claim 3 , wherein said plastic material is a high density polyethylene. 
     
     
         5 . The invention of  claim 1 , wherein the reinforcing structure is an array of ribs. 
     
     
         6 . The invention of  claim 5 , wherein the array of ribs comprises a plurality of circumferential ribs and a plurality of radial ribs extending from the center of the lid.