Patent ID: 7607821

Claim:
A baffle secured to a glass-lined internal wall of a container, which is capable of being equipped with a system of circulation of thermal fluid, the baffle being secured to and held at a distance from an adjacent internal wall ( 12 ) of the container ( 1 ) and relative to the adjacent internal wall ( 12 ) and locally with the adjacent internal wall ( 12 ) by only a single local connection ( 15 ) whose greatest dimension is less than a length of the baffle, and the baffle and the local connection have only rounded edges and angles, and an external surface of the baffle and an external surface of the local connection are glass-lined forming a group of glass-lined surfaces with an internal lateral surface of the container, and the single local connection ( 15 ) enables the baffle to be substantially insensitive to expansion of a remainder of the container; and the local connection ( 15 ) is connected to the baffle ( 14 ) at a location between opposed ends of the baffle.