US Patent 9681771 Container for liquids

A container is disclosed that comprises an outer vessel having an inner cavity, and an inner vessel having an inner cavity. The inner vessel and outer vessel are configured for receiving all or substantially all of the inner vessel through an opening in the outer vessel such that in operation, said opening of the inner vessel may be releasably positioned proximate the opening of the outer vessel. The container also includes a lid for releasably enclosing said inner vessel within said outer vessel. The outer container may be made from a material called TRITAN and the inner vessel may be made from glass. A seal may be provided between the top to the inner vessel and the lid.