Automatic closure device using hotmelt material

摘要

The closure for a package in which food is cooked comprises a housing (18) with a cavity (22) which contains a heat-fusible component (24) and a central channel (27) which has a valve (29) at the top. A second channel (32) connects the cavity with the space (34) into which the valve opens. This can be blocked by material from the heat-fusible component which has melted and resolidified. Independent claims are included for: (a) a package fitted with the closure; and (b) a food product in a package fitted with the closure.