Double wall food storage container with optional insulator

Abstract

A food storage container that is double-walled and transportable. The space or compartment between the two walls insulates the food contents of the container. The compartment between the walls may contain water, refrigerant gel, styrene or filler of the user's choice. The walls of the container are very thin and malleable.

1 . A food storage container comprising:
 a body having a thin, flexible outer wall, the outer wall; and   a thin, flexible inner wall spaced from said outer wall;
 wherein said inner wall defining a chamber for storage of materials and said outer wall cooperate to form compartment therebetween to provide heat resistance to said chamber; and 
   a lid removably mounted on said body for hermetically sealing said compartment.   
   
   
       2 . The food storage container of  claim 1  further comprising a fluid disposed in said compartment, said fluid being a thermal insulator. 
   
   
       3 . The food storage container of  claim 2  wherein said fluid is a mixture of about 3-10% hydroxyethyl cellulose and about 90-97% propylene glycol. 
   
   
       4 . The food storage container of  claim 2  wherein said fluid is water. 
   
   
       5 . The food storage container of  claim 2  wherein fluid is a refrigerant gel. 
   
   
       6 . The food storage container of  claim 4  wherein the refrigerant gel consists of about 15% by weight of cornstarch, about 2% by weight of borax, about 0.01% by weight of non-toxic preservative, and about 83% by weight of water. 
   
   
       7 . The food storage container of  claim 2  wherein said fluid is expanded polystyrene. 
   
   
       8 . The food storage container of  claim 1  wherein the space between said outer wall and said inner wall is depressurized. 
   
   
       9 . A food storage container comprising:
 a body having a thin, flexible outer wall, the outer wall having an outer wall floor; and   a thin, flexible inner wall spaced from said outer wall, the inner wall having an inner wall floor;
 wherein said inner wall and outer wall are joined to form a compartment therebetween, said compartment being filled with heat insulating fluid. 
   
   
   
       10 . The food storage container of  claim 5  further comprising an opening into said compartment and a plug fits into said opening.