Stackable freezer pack

Abstract

A freezer pack which has a body in the shape of a cuboid, a first face of the body having a plurality of recesses and a second face opposite to the first face having a plurality of projections extending outwardly therefrom, the projections and the recesses being sized and located such that a projection on the second face will mate with a recess on a first face of a second cuboid.

I claim: 
     
         1 . A freezer pack comprising:
 a body in the shape of a cuboid;   a first face of said body having a plurality of recesses;   a second face of said body opposite to said first face having a plurality of projections extending outwardly therefrom;   said projections and said recesses being sized and located such that a projection on said second face will mate with a recess on a first face of a second cuboid.   
     
     
         2 . The freezer pack of  claim 1  wherein said body is formed of a plastic material. 
     
     
         3 . The freezer pack of  claim 2  wherein said body is filled with a coolant. 
     
     
         4 . The freezer pack of  claim 1  wherein said first face of said body has a plurality of recesses, said plurality of recesses being a multiple of four. 
     
     
         5 . The freezer pack of  claim 1  wherein said first face and said second face have an anti expansion member securing said first and second faces together. 
     
     
         6 . The freezer pack of  claim 1  wherein one face of said cuboid has an aperture formed therein, a plug sealing said aperture, and a cover meeting with said cuboid to limit access to said plug and aperture. 
     
     
         7 . The freezer pack of  claim 1  wherein said first face of said body has a plurality of channels communicating with at least one of said recesses. 
     
     
         8 . A freezer pack system comprising:
 first and second freezer packs, each freezer pack having a body in the shape of a cuboid;   a first face of each of said bodies having a plurality of recesses;   a second face opposite to said first face having a plurality of projections;   said projections on said first body being arranged and sized to fit within said recesses on said first face of said second body.