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OwnerGregory S. Sprehe, William A. Bodolay +4inventors
InventorsGregory S. Sprehe, William A. Bodolay, Robert Beiser, Donald Wright, Christopher Pemberton, Lester Siebert
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A vertical form, fill and seal machine in conjunction with a product supply apparatus provides a continuous, heat sealable plastic film and zipper tape and provides separate, product filled, reclosable, top opening sealed bags. The apparatus includes a means for supplying the continuous plastic film, a means for supplying zipper tape, a means for sealing the zipper tape sections to the film, a vertical fill tube assembly, a feeding means including a film drive roll upstream, film pull belts adjacent the vertical fill tube, a vertical sealing means for sealing the edges of the continuous film to the edges of the continuous zippered cap strip, a horizontal sealing, perforating, and severing means for severing the plastic tube between the first and second horizontal seals, and a tensioning means for horizontally elongating the flexible plastic tube transverse to its length prior to formation of the horizontal seals.
An apparatus for attaching a reclosable zipper-type fastener to a flexible material primarily intended for use with a host form, fill, seal and separate packaging machine to form a top-opening reclosable container, said apparatus comprising:
A vertical form, fill and seal machine of the type that operates in conjunction with a product supply apparatus providing product in discrete quantities and that forms a continuous, heat sealable plastic film and zipper tape into separate, product filled, reclosable, top opening sealed bags comprising:
A method for forming a tamper-evident, flexible, top sealing reclosable bag by attaching a reclosable zipper fastener to a segment of flexible material to be used to form a container, said method comprising the steps of:
Dependencies are inferred from the claim text.