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US 5,348,182 AGranted
Means for attaching fitment and method of applying fitment
AssigneePortola Packaging, Inc.
InventorDaniel Luch
Life of this patent
Estimating the term…
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AssigneePortola Packaging, Inc.
InventorDaniel Luch
Estimating the term…
A fitment to be attached to an apertured wall of a container or the like is initially formed (as by plastic molding) with a thin cylindrical plastic molding) with a thin cylindrical wall dimensioned to fit inside the aperture in the container. A flange is formed on the exterior of the cylindrical wall to fit against the exterior of the container wall, surrounding the aperture therein. Preferably the flange slants downward-outward. A curling tool is forced against the end of cylindrical wall, curling it outward-upward to fit tightly against the interior of the container wall opposite the flange, thereby crimping the fitment to the container. Curling of the cylindrical wall may be performed either before or after the fitment is installed on the carton. The fitment is formed to be closed by a cap and preferably to engage the cap in a tamper-evident manner. In a preferred form of the invention the cap and fitment are initially molded as a unitary member.
An initially unitary fitment and closure combination, said fitment having a spout having upper and lower ends, a flange, said flange having a flat smooth surface facing said lower end of said spout, extending outwardly and downwardly from a line on said spout located intermediate said upper and lower ends, and attachment means on said spout for attaching said fitment to a container panel formed with an aperture, said closure having a top and a skirt depending from said top dimensioned to fit within said spout and having a lower end, cooperating seal means on said spout and skirt to seal said spout to said skirt when said skirt is within said spout and frangible means initially joining an outer surface of said skirt to said upper end of said spout, said attachment means comprising a thin cylindrical wall comprising part of said spout initially depending vertically downward below said flange, said cylindrical wall being formed of curlable material, said cylindrical wall being curled outwardly and upwardly in a curl located adjacent but spaced from said flange and engaging said container panel on a first side of said panel spaced outward from said aperture, said flange engaging said panel on a second side opposite said first side.
Dependencies are inferred from the claim text.