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US 5,699,924 AGranted
Attachment of tamper-evidencing band to closure skirt
AssigneePortola Packaging, Inc.
InventorsNicholas A. Mascio, Douglas S. Martin
Life of this patent
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AssigneePortola Packaging, Inc.
InventorsNicholas A. Mascio, Douglas S. Martin
Estimating the term…
A plastic container closure has a skirt which is connected to a tamper-evidencing band by frangible bridges, all molded in a single unit. Where the closure is a cap for a container neck, there is at least one retaining means on the skirt and another on the band. The neck has two retaining means which cooperate with those on the cap to prevent upward movement of the cap without fracture of the bridges. To reduce the likelihood of unintentional fracture of the bridges, particularly during installation of the cap on the neck, plural ejection bumpers of extended arcuate lengths are located on the top edge of the band and or from the bottom edge of the skirt and the bridges are located between the bumpers. This snap lock ring functions to replace the conventional retaining means located centrally of the band. The invention is applicable to tamper-evidencing bands of closures and of push/pull closures of sports-type cap spouts.
In combination, a cap and a neck over which said cap fits, said cap comprising a skirt having a bottom edge, a drop band below said skirt and a plurality of bridges interconnecting said skirt and said band,
In combination, a cap and a neck over which said cap fits;
In combination, a cap and a neck over which said cap fits, said cap comprising a skirt having a bottom edge, a drop band below said skirt and a plurality of bridges interconnecting said skirt and said band, said neck comprising an external ring positioned to protrude above said band when said cap is assembled on said neck to restrain upward movement of said cap relative to said neck while said bridges are intact, said band having an upper edge comprising a level top surface and which further comprises a plurality of circumferentially spaced bumpers extending from the upper edge of said band, said bumpers having bottom surfaces extending slightly below said cap skirt, said ring engaging said top surface.
Dependencies are inferred from the claim text.