Importance

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Abstract

An apparatus for sealing a covering material to an outer flange of a container includes a container carrier for aligning the covering material relative to the container so that a portion of the covering material is positioned over the outer flange of the container. The apparatus also includes a sealing assembly having a horn and a mechanism for applying pressure to the outer flange and to the covering material against the horn. The apparatus further includes a conveyor for moving the container carrier relative to the sealing assembly so that the outer flange of the container and the portion of the covering material positioned over the outer flange pass below the horn. In addition, the apparatus includes a mechanism for vibrating the horn at a predetermined frequency to cause friction between the outer flange of the container and the portion of the covering material positioned over the outer flange to seal the outer flange to the covering material. The angle of the horn is adjustable relative to the covering material so that the horn helps to propel the covering material in a direction of movement of the container carrier.

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First Claim