Pallets having multi-purpose nubs

Abstract

A pallet filled with foam includes foam injection holes selectively positioned at lower base surfaces of the pallet. Nubs extend downwardly from said injection holes to seal the holes. In additional embodiment, said nubs engage recesses at the top of a like pallet, to inhibit shifting of stacked pallets.

1 . A pallet comprising: 
 At least one hollow interior portion filled with injected foam, wherein said at least one foam injection hole is selectively positioned at a bottom surface of said hollow interior portion; and    at least one nub provided in said at least one foam injection hole to seal said hole, such that said at least one nub projects downwardly from said at least one foam injection hole.    
   
   
       2 . A pallet in accordance with  claim 1 , wherein said at least one nub projects below other portions of said pallet.  
   
   
       3 . A pallet in accordance with  claim 1 , wherein said at least one foam injection hole is provided in a recess on a bottom surface of said hollow interior portion, and said nub projects downwardly from said at least one foam injection hole.  
   
   
       4 . A pallet in accordance with  claim 3 , wherein a top portion of said head of said nub is flush with portions of the bottom portion of said hollow interior portion surrounding said recess.  
   
   
       5 . A pallet in accordance with  claim 2 , wherein an upper portion of said pallet includes a recess configured to surround a head portion of a nub having a protruding geometry corresponding to the protruding geometry said at least one nub provided in said at least one foam injection hole.  
   
   
       6 . A pallet in accordance with  claim 3 , wherein an upper portion of said pallet includes a recess configured to engage portions of said at least one nub and hollow interior portion projecting below said at least one foam injection hole.  
   
   
       7 . A pallet in accordance with  claim 1 , wherein a vent hole is provided on an upper surface of said hollow interior portion, and wherein said vent hole is covered by a non-slip seal configured to engage a nub or other portion of a pallet stacked thereon.  
   
   
       8 . A pallet in accordance with  claim 1 , wherein the hollow interior portion comprises a molded plastic.