Abstract: Expandable containers having lids for providing headspace control in food can are disclosed.

Abstract: The invention relates to lids for cans for receiving foodstuff which are to be subjected to a thermal treatment above 50° C. as sterilization or at least pasteurization. The lid (1) has an annular ring (2) seamable to the can body which ring can be firmly and sealingly connected with the can body rim portion and a cover panel (3) which is sealingly disposed (13) to said ring. The annular ring comprises a flat web (6) that points towards a vertical central axis (8) of the lid and is axially outwardly inclined (11) with respect to a horizontal plane (15). The cover panel (3) is sealed to the flat inclined web by means of a radially outer ring band (3a). A central area (3b) that is surrounded by the ring band is axially inwardly preformed towards an interior in a dome or bowl-shaped fashion and thereby stabilized. After closing of the can, it is subjected to the thermal treatment.

Abstract: Expandable containers having lids for providing headspace control in food can are disclosed.

Abstract: Expandable Container having Lid for Providing Headspace Control in a Food Can The invention relates to lids for cans for receiving foodstuff which are to be subjected to a thermal treatment above 50° C. as sterilization or at least pasteurization. The lid (1) has an annular ring (2) seamable to the can body which ring can be firmly and sealingly connected with the can body rim portion and a cover panel (3) which is sealingly disposed (13) to said ring. The annular ring comprises a flat web (6) that points towards a vertical central axis (8) of the lid and is axially outwardly inclined (11) with respect to a horizontal plane (15). The cover panel (3) is sealed to the flat inclined web by means of a radially outer ring band (3a). A central area (3b) that is surrounded by the ring band is axially inwardly preformed towards an interior in a dome or bowl-shaped fashion and thereby stabilized. After closing of the can, it is subjected to the thermal treatment.

Abstract: A container lid includes a ring (2) defining an opening (6), the opening (6) being closed by a membrane (7) of “peelable” type, which peelable membrane (7) is joined to a peripheral surface (L) of the ring (2), the joining surface (L) being delimited by an inner border (Li) and an outer border (Lo), by means of a layer of matter (16) known as sealant layer constituting a surface coating layer of the ring (2) and/or the peelable membrane (7). On at least a part of the circumference of the joining surface (L), the thickness of the sealant layer (16) is variable in the radial direction, that is to say on its width, forming a width of variable thickness, this thickness increasing on at least a part of the width of the joining surface (L), in the direction from its outer border (Lo) towards its inner border (Li).

Abstract: The invention relates to a container (1) comprising a mouth opening and a membrane lid (5) arranged with an attachment zone (6) on the edge of the mouth opening for closing the container, wherein the membrane lid consists at the attachment zone (6) over its thickness of plastic. The invention further relates to a method for producing such a container.