A sheet metal lid has a rim portion removably secured and sealed to a container and the lid includes a vent button having a top wall portion surrounded by a side wall portion and an outwardly projecting flange portion. The flange portion of the button has a short arcuate score or shear line extending substantially into the sheet metal, and additional score lines extend into the flange portion at lesser depths to protect a coating on the inner surface of the lid. A resilient sealant material may be bonded to the inner surface of the vent button, and the opposing sheet metal portions of the score line form a small gap for releasing a vacuum or pressure from the container in response to a controlled downward pressure on the top wall portion of the vent button.

A retainer assembly includes a retaining member assembly and a motion assembly. The retaining member assembly is structured to selectively retain at least one shell in a transfer belt assembly belt recess. The retaining member assembly includes a retaining member. The motion assembly is structured to move the retaining member between a first position, wherein the retaining member is spaced from the transfer belt assembly transfer belt, and, a second position, wherein the retaining member is disposed a retaining distance from the transfer belt assembly transfer belt.

A tear-off lid with a curled edge of the removal opening is formed such that before the edge is curled, a plastics layer provided as a band of low thickness and preferably only 0.1 mm thickness is applied to the collar of the lid ring. In this way, a good seal of the cut edge of the tear-off lid is produced economically and with the possibility for production at a high rate.

An apparatus (1) for the production of tear-off lids (27), in which a tear-off film (24) is sealed or glued onto the upper side thereof on a sealing surface (18) arranged around a removal opening (17). The apparatus includes a conveying device (13) for lid blanks (9), lid rings (8), and tear-off lids (27), as well as processing stations (14, 19, 21, 25, 26, 29) which are provided in succession in the conveying direction for processing the lid blanks (9), lid rings (8), and tear-off lids (27) and form a processing zone of the apparatus (1) extending in the conveying direction. At least some of the processing stations (14, 19, 21, 25, 26, 29) have lifting tables (5) for receiving lower machining tools which, in the intended operation of the apparatus (1), execute an intermittent upward and downward movement along lifting table guides (6) and, in doing so, work with the lower machining tools from below against associated upper machining tools which are supported on stationary yokes (4). According to the disclosure, the lifting table guides (6) are arranged in an area adjacent to the processing zone of the apparatus, as seen in the conveying direction, on exactly one of the two sides of the processing zone. This leaves the area on the other side of the processing zone largely unobstructed and provides excellent accessibility to the processing zone for inspection purposes and maintenance work.

A tear-off lid with a curled edge of the removal opening is formed such that before the edge is curled, a plastics layer provided as a band of low thickness and preferably only 0.1 mm thickness is applied to the collar of the lid ring. In this way, a good seal of the cut edge of the tear-off lid is produced economically and with the possibility for production at a high rate.

A container closure includes a generally planar body having a product side and a customer side. The container closure body defines a limited container opening and an actuation location. Further, the container body includes a force concentrating construction disposed adjacent the limited container opening.

An alignment assembly for a press assembly is provided. The alignment assembly includes a number of alignment elements. The alignment elements include a number of moving alignment elements. The moving alignment elements are coupled to an upper tooling assembly that moves between a first and second position. As the upper tooling assembly moves, the moving alignment elements move between a first position and a second position corresponding to the upper tooling assembly first position and a second position. The moving alignment elements are structured to move the shell from the initial alignment position to an intermediate alignment position. Thus, as the upper tooling assembly moves from the first position to the second position, the moving alignment elements contact a shell and move the shell from an initial alignment position to an intermediate alignment position.

An alignment assembly for a press assembly is provided. The alignment assembly includes a number of alignment elements. The alignment elements include a number of moving alignment elements. The moving alignment elements are coupled to an upper tooling assembly that moves between a first and second position. As the upper tooling assembly moves, the moving alignment elements move between a first position and a second position corresponding to the upper tooling assembly first position and a second position. The moving alignment elements are structured to move the shell from the initial alignment position to an intermediate alignment position. Thus, as the upper tooling assembly moves from the first position to the second position, the moving alignment elements contact a shell and move the shell from an initial alignment position to an intermediate alignment position.

A sheet metal lid has a rim portion removably secured and sealed to a container and the lid includes a vent button having a top wall portion surrounded by a side wall portion and an outwardly projecting flange portion. The flange portion of the button has a short arcuate score or shear line extending substantially into the sheet metal, and additional score lines extend into the flange portion at lesser depths to protect a coating on the inner surface of the lid. A resilient sealant material may be bonded to the inner surface of the vent button, and the opposing sheet metal portions of the score line form a small gap for releasing a vacuum or pressure from the container in response to a controlled downward pressure on the top wall portion of the vent button.

A sealing system is for containers, in particular of the type that envisages sealing with an aluminum cap. Forming equipment of a cap or seal of weldable sealing material is for the application on the mouth of a container. The equipment includes at least one forming device (52) of the seal or cap, the at least one forming device (52) is arranged along the periphery of a forming roll (31) tangent to and moved in sync with a positioning roll carrying at least one disc or sheet of the sealing material for forming the seal or cap.