Insulated food jar with campfire or stove heatable inner container

Abstract

An insulated food jar assembly includes an outer insulated container or sleeve having an open mouth and an interior space. The outer insulated container is a double-walled vacuum insulated container. An inner container nests into the interior space of the outer insulated container. The inner container has a collar that extends over the open mouth of the outer container when nested. The collar includes handles and an inner surface that bears against a friction ring about the mouth of the outer container. A lid fastens onto a neck of the inner container. A stopper in the lid fits into the neck and has a gasket to seal against an inward projection of the neck. A gasket at an outer edge of the lid seals against a shoulder of the inner container. The inner container is of a material that may be heated over an open flame heat source.

What is claimed is: 
     
         1 . An insulated food jar assembly comprising:
 an insulated outer container having an open first end;   a heatable inner container having an open mouth and configured to slidably nest inside said insulated outer container through said first open end, the heatable inner container being of a material and configured for heating over an open flame heating source; and   a lid having a gasket configured to engage the open mouth of said inner container to provide a liquid tight seal between the lid and said heatable inner container.   
     
     
         2 . The insulated food jar assembly of  claim 1 , wherein said lid includes a closed top cover and closed sidewalls extending downward from a perimeter of said closed top cover. 
     
     
         3 . The insulated food jar assembly of  claim 2 , wherein said lid further includes a stopper protruding downward from a bottom surface of said closed top cover, and wherein said stopper is configured to seat within said open mouth of said inner container. 
     
     
         4 . The insulated food jar assembly of  claim 3 , further comprising a gasket disposed about an outer circumference of said stopper. 
     
     
         5 . The insulated food jar assembly of  claim 1 , wherein said insulated outer container is a double walled vacuum insulated outer container. 
     
     
         6 . The insulated food jar assembly of  claim 5 , wherein said insulated outer container includes a support base connected to a lower portion of said insulated outer container. 
     
     
         7 . The insulated food jar assembly of  claim 1 , wherein said heatable inner container includes a collar extending away from a sidewall of said inner container. 
     
     
         8 . The insulated food jar assembly of  claim 7 , wherein said heatable inner container includes one or more handles attached to said collar of said inner container. 
     
     
         9 . The insulated food jar assembly of  claim 1 , wherein said lid and said heatable inner container each include one or more complimentary threaded structures for sealingly fastening said lid to said heatable inner container. 
     
     
         10 . The insulated food jar assembly of  claim 1 , wherein said insulated outer container and said heatable inner container are configured to be selectively positioned in a nested arrangement, wherein when in said nested arrangement at least a portion of said heatable inner container is disposed within an interior of said insulated outer container by a bottom portion of said heatable inner container being slidably engaged through an open top end of said insulated outer container to a fully seated position within said insulated outer container. 
     
     
         11 . The insulated food jar assembly of  claim 10 , further comprising:
 a friction ring disposed between an exterior surface of said insulated outer container and a surface of said heatable inner container, wherein said friction ring provides a predetermined amount of sliding friction force between said inner container and said outer container when said containers are in the nested arrangement.   
     
     
         12 . The insulated food jar assembly of  claim 11 , wherein said predetermined amount of friction force between said inner container and said outer container is sufficient to prevent a force of gravity, acting in the direction of sliding movement between said containers, from slidably moving one of said containers beyond the fully inserted position with respect to the other of said containers, when said inner container is fully inserted into said outer container. 
     
     
         13 . The insulated food jar assembly of  claim 11 , wherein said friction ring is disposed about an upper end of said insulated outer container, said friction ring having at least one fin protruding beyond an exterior surface of said outer insulated container, wherein said at least one fin is configured to contact said heatable inner container and apply said predetermined amount sliding friction force against said heatable inner container.