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US 6,444,158 B1Granted
Handled plastic container
AssigneeContinental PET Technologies, Inc.
InventorsRolf Grob, Suppayan M. Krishnakumar, Harry L. Ieuan, Thomas E. Nahill
Life of this patent
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AssigneeContinental PET Technologies, Inc.
InventorsRolf Grob, Suppayan M. Krishnakumar, Harry L. Ieuan, Thomas E. Nahill
Estimating the term…
Method of securing a separate handle (18) to a plastic blow-molded container, the container having a molded external flange which is not subject to stretching during the blow-molding process. The flange has a substantially flat underside face and serves as a rigid support for the handle (18) when a substantially flat upper abutment surface of the handle (18) is positioned against the flange. Preferably, the upper end of the handle (18) has a downwardly extending lug (15) which is surrounded by the blow-molded sidewall of the container. The preform and handle (18) can be brought together into position where the upper end of the handle is adjacent to the underside of the external flange by relative movement of the preform and handle (18) towards each other along a first path which is substantially perpendicular to the longitudinal axis of the preform. In addition, the handle (18) and preform can be brought together prior to their introduction into the mold, and then introduced together into the blow mold along a second path which is also substantially perpendicular to the longitudinal axis of the preform. Further, the preform can be heated prior to introduction into the mold, while the handle (18) remains unheated.
A method of manufacturing a handled plastic container which includes the steps of:
A handled plastic container comprising a blow molded plastic container and a separate handle interconnected thereto, wherein the container includes a neck including a preform finish and beneath said finish an outwardly extending flange, the flange having a substantially flat underside face, and the handle having an upper end with an upper support platform having a curved front face, a substantially flat upper abutment surface and opposing sides, the upper support platform being sandwiched between a portion of the sidewall of the formed container and the flange with the substantially flat upper abutment surface of the handle lying along the underside face of the flange and the container sidewall portion being expanded around the sides of the upper support platform.
A handled plastic container comprising a blow molded plastic container made from a preform and a separate handle interconnected thereto, wherein the container includes a neck including a preform finish and beneath said finish an outwardly extending flange, the flange having a substantially flat underside face, and the handle having an upper end with an upper support platform having a curved front face, a substantially flat upper abutment surface and opposing sides, the upper support platform being sandwiched between a portion of the sidewall of the formed container and the flange with the substantially flat upper abutment surface of the handle lying along the underside face of the flange, wherein the upper end of the handle includes a lower retaining means spaced below the upper support platform and extending toward the preform such that a sidewall of the preform is expanded into the space between the retaining means and upper support platform and around the lower retaining means.
A handled plastic container comprising a blow-molded plastic container and a separate handle interconnected thereto, wherein the container includes a neck including a preform finish and beneath said finish an outwardly extending flange, the container further including an unstretched cylindrical portion below the flange, a biaxially stretched and oriented dome below the cylindrical portion, and below the dome a biaxially stretched and oriented cylindrical panel portion, the handle having an upper attachment portion integrated with an upper portion of the dome and including a diverging distal end and a narrower proximal end, the dome being expanded around the diverging end and into contact with the narrower end in order to secure the upper handle attachment to the container, the area of the dome above the upper attachment portion having an average planar stretch ratio of greater than 2.5 and the handle having a lower attachment portion integrated with a lower portion of the dome.
Dependencies are inferred from the claim text.