Continental Pet Technologies, Inc.

Rolf Grob

Suppayan M Krishnakumar

Thomas E Nahill

Harry L Ieuan

Method of securing a separate handle ( ) 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 ( ) when a substantially flat upper abutment surface of the handle ( ) is positioned against the flange. Preferably, the upper end of the handle ( ) has a downwardly extending lug ( ) which is surrounded by the blow-molded sidewall of the container. The preform and handle ( ) 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 ( ) towards each other along a first path which is substantially perpendicular to the longitudinal axis of the preform. In addition, the handle ( ) 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 ( ) remains unheated.

Handled plastic container

A method of manufacturing a handled plastic container which includes the steps of: a) positioning a preformed handle and a synthetic resin preform within an open blow mold without mutual engagement of said handle and preform; said handle including upper retaining means and lower retaining means and said preform including a molded engagement portion adapted to engage with the upper retaining means of the handle; b) causing the upper retaining means of the handle to interconnect with the engagement portion of the preform after the handle and preform have been separately positioned within the blow mold; and c) stretch blow molding the preform in the blow mold wherein said blow molding stretches the preform beneath the engagement portion into blow mold to form a container and expands the sidewall of the preform so as to retain the upper retaining means of the handle in interconnecting relation with the engagement portion of the preform. In another aspect of the invention there is provided a handled plastic container, said container comprising a low molded plastic bottle and a separate handle interconnected thereto wherein the handle includes upper retaining means and lower retaining means, said upper retaining means including a lug or protrusion, and the bottle including a neck finish having an engagement portion co-operate with said lug or protrusion connecting said upper retaining means with said bottle, and wherein the lower retaining means in integrated with a portion of a sidewall of the bottle.

A method of manufacturing a handled plastic container which includes the steps of: a) positioning a preformed handle and a synthetic resin preform within an open blow mould without mutual engagement of said handle and preform; said handle including upper retaining means and lower retaining means and said preform including a moulded engagement portion adapted to engage with the upper retaining means of the handle; b) causing the upper retaining means of the handle to interconnect with the engagement portion of the preform after the handle and preform have been separately positioned within the blow mould; and c) stretch blow moulding the preform in the blow mould wherein said blow moulding stretches the preform beneath the engagement portion into blow mould to form a container and expands the sidewall of the preform so as to retain the upper retaining means of the handle in interconnecting relation with the engagement portion of the preform. In another aspect of the invention there is provided a handled plastic container, said container comprising a blow moulded plastic bottle and a separate handle interconnected thereto wherein the handle includes upper retaining means and lower retaining means, said upper retaining means including a lug or protrusion, and the bottle including a neck finish having an engagement portion co-operate with said lug or protrusion connecting said upper retaining means with said bottle, and wherein the lower retaining means is integrated with a portion of a sidewall of the bottle.

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Chadstone, Australia

Rolf Grob