the liquid is disposed in an accumulator pack locked in a closable wall forming part of the container

Full Title

Details of devices using other cold materials; Details of devices using cold-storage bodies > Devices using cold storage material, i.e. ice or other freezable liquid > using cold storage material disposed in closed wall forming part of a container for products to be cooled > the liquid is disposed in an accumulator pack locked in a closable wall forming part of the container