Layered preform

A layered polymeric resin preform for use in the production of a plastic container in a blow-molding operation, the preform comprising:

• an inner parison molded in a first mold to include a finish portion having a lower margin, a closed bottom portion, and a barrel portion having an outer surface extending between the finish portion lower margin and the bottom portion, the inner parison closed bottom portion including a gate vestige,
• an outer parison molded in a second mold and consisting essentially of a barrel portion including an inner surface having a length about equal to the inner parison barrel portion outer surface and a bottom portion including an opening,
• at least one additional layer of material sandwiched between the inner parison and the outer parison,
• the outer parison being mechanically assembled over the inner parison outside the first and second molds so that the additional layer of material fully contacts the outer parison inner surface and the inner parison outer surface, and retaining means for retaining the parisons in fixed position relative to each other to form a layered preform, the opening in the outer parison bottom portion being sized to receive the gate vestige of the inner parison, whereby the parisons are held in fixed position relative to each other in subsequent heating and blow molding of the container, and
• a handle including a ring portion having an inner diameter about equal to the inner parison barrel portion outer diameter, and a gripping portion projecting outward from the ring portion, the ring portion being positioned between the outer parison barrel portion and the inner parison finish portion.

A layered polymeric resin preform for use in the production of a plastic container in a blow-molding operation, the preform comprising:

• an inner parison molded in a first mold to include a finish portion having a lower margin, a closed bottom portion including a gate vestige, and a barrel portion including an outer surface extending between the finish portion lower margin and the bottom portion,
• an outer parison molded in a second mold and consisting essentially of a barrel portion including an inner surface having a length about the same as the inner parison barrel portion outer surface and a bottom portion including an opening sized to receive the gate vestige of the inner parison,
• the outer parison being mechanically assembled over the inner parison outside the first and second molds so that the outer parison inner surface conforms to the inner parison outer surface, a portion of the gate vestige being received in and welded to the margin of the outer parison bottom opening for retaining the parisons in fixed position relative to each other to form a layered polymeric resin preform, and
• a handle including a ring portion having an inner diameter about equal to the inner parison barrel portion outer diameter, and a gripping portion projecting outward from the ring portion, the ring portion being positioned between the outer parison barrel portion and the inner parison finish portion.

A layered polymeric resin preform for use in the production of a plastic container in a blow-molding operation, the preform comprising:

• an inner parison molded in a first mold to include a finish portion having a lower margin, a closed bottom portion including a gate vestige, and a barrel portion including an outer surface extending between the finish portion lower margin and the bottom portion,
• a handle including a ring portion having an inner diameter equal to the inner parison barrel portion outer diameter, and a gripping portion projecting outward from the ring portion, the ring portion being positioned coaxially over the inner parison barrel portion and contiguous to a lower margin of the inner parison finish portion, and
• an outer parison molded in a second mold and consisting essentially of a barrel portion having an inner surface including an upper margin, the outer parison barrel portion having a length less than the inner parison barrel portion and a bottom portion including an opening sized to receive the gate vestige of the inner parison,
• the outer parison being mechanically assembled over the inner parison outside the first and second molds so that the upper margin of the outer parison barrel portion is contiguous to a lower margin of the handle ring portion and the outer parison inner surface conforms to the inner parison outer surface, a portion of the gate vestige being received in and welded to the margin of the outer parison bottom opening for retaining the parisons in fixed position relative to each other to form a layered polymeric resin preform.