Patent ID: 9617056
Date: 2017-04-11
CPC Classifications: B29C,B29K,B29L,B65D,Y10T

Claim:
1. A lid for a can body for receiving a foodstuff, wherein, after sealingly closing of the can body, the closed can is subjectable to a thermally treating pasteurization or sterilization process, the lid comprising: an annular ring for firmly seaming to a can body edge portion and a plane or surface oriented cover panel disposed sealingly on the annular ring or affixable to the ring; wherein the annular ring comprises a flat web that extends towards a vertical central axis of the lid and is inclined at an angle with respect to a horizontal plane, the inclination is oriented upwards or axially outward of the can body; wherein the cover panel is sealingly affixed to the flat web, by a radially outer ring band, and a remaining central portion that is surrounded by the ring band is preformed axially towards an interior of the can as a bowl-shape and is for this reason stabilized in a manner so that the bowl-shaped cover panel, during an increase in pressure during one of sterilization and pasteurization, changes from the preformed first position to a second position that is bowl-shaped axially outwards, and automatically returns to the preformed first position after cooling.