Container preform assembly and method of manufacture

Details Container preform assembly and method of manufacture Container preform assembly and method of manufacture

2005-12-20

2005-12-20

Griffin, Steven P. (Department: 1772)

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

C215S040000, C215S042000, C215S043000, C215S044000

Reexamination Certificate

active

06977104

ABSTRACT:
A preform assembly for blow molding a container includes a molded plastic preform having a body and a neck with an external surface. At least one circumferential channel is molded into the external surface of the preform neck for removing the preform from the forming mold. A plastic finish ring separate from the preform is externally secured to the preform neck over the external surface of the neck.

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patent: 4293520 (1981-10-01), Akutsu
patent: 4341317 (1982-07-01), Suzuki
patent: 4607757 (1986-08-01), Lecinski
patent: 5588544 (1996-12-01), Takashima et al.
patent: 5833085 (1998-11-01), Valyi
patent: 5884786 (1999-03-01), Valyi
patent: 6076688 (2000-06-01), Forget
patent: 6105800 (2000-08-01), Czesak
patent: 6811845 (2004-11-01), Nahill et al.

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