Lightweight plastic container and preform
AssigneePlastipak Packaging, Inc.
InventorsRichard C. Darr, Edward V. Morgan
Life of this patent
Estimating the term…
Abstract
A plastic container includes a hollow body portion including a lower supporting base portion; a sidewall portion extending upwardly from the base portion; and a neck portion extending upwardly from the sidewall portion. The neck portion includes a support flange having an upper and lower surface, at least one thread, and a dispensing opening at the top of the neck portion. In embodiments, a closure may be provided to form an assembly. A preform and method for making a container are also disclosed.
Claims29
A method for blow molding a plastic container from a plastic preform, the plastic container comprising:
- a lower supporting base portion;
- a sidewall portion extending upwardly from the base portion;
- and
- a neck portion extending upwardly from the sidewall portion, the neck portion including:
- a dispensing opening positioned at a top of the neck portion;
- threads positioned below the dispensing opening;
- a tamper-evident formation positioned directly below the threads, the tamper-evident formation having a lower surface;
- and
- a support flange positioned below the tamper-evident formation, the support flange having an upper surface and a lower surface;
- wherein the plastic container is formed of a material comprising polyethylene terephthalate (PET);
- and a vertical distance from the lower surface of the support flange to the top of the neck portion is from 0.425 to 0.500 inches.
A method for blow molding a plastic container from a plastic preform, the plastic container comprising:
- a lower supporting base portion;
- a sidewall portion extending upwardly from the base portion;
- and
- a neck portion extending upwardly from the sidewall portion, the neck portion including:
- a dispensing opening positioned at a top of the neck portion;
- threads positioned below the dispensing opening;
- a tamper-evident formation positioned below the threads, the tamper-evident formation having a lower surface;
- and
- a support flange positioned below the tamper-evident formation, the support flange having an upper surface and a lower surface;
- wherein the plastic container is formed of a material comprising polyethylene terephthalate (PET);
- a vertical distance from the lower surface of the support flange to the top of the neck portion is from 0.425 to 0.500 inches;
- and an outside diameter of the support flange is greater than 22 mm and less than or equal to 39.2 mm.
A method for blow molding a plastic container from a plastic preform, the plastic container comprising:
- a lower supporting base portion;
- a sidewall portion extending upwardly from the base portion;
- and
- a neck portion extending upwardly from the sidewall portion, the neck portion including:
- a dispensing opening positioned at a top of the neck portion;
- threads positioned below the dispensing opening;
- a tamper-evident formation positioned below the threads, the tamper-evident formation having a lower surface;
- and
- a support flange positioned below the tamper-evident formation, the support flange having an upper surface and a lower surface;
- wherein the plastic container is formed of a material comprising polyethylene terephthalate (PET);
- and a vertical distance from the lower surface of the support flange to the top of the neck portion is from 0.435 to 0.500 inches.
A method for blow molding a plastic container from a plastic preform, the plastic container comprising:
- a lower supporting base portion;
- a sidewall portion extending upwardly from the base portion;
- and
- a neck portion extending upwardly from the sidewall portion, the neck portion including:
- a dispensing opening positioned at a top of the neck portion;
- threads positioned below the dispensing opening;
- a tamper-evident formation positioned below the threads, the tamper-evident formation having a lower surface;
- and
- a support flange positioned below the tamper-evident formation, the support flange having an upper surface and a lower surface;
- wherein the plastic container is formed of a material comprising polyethylene terephthalate (PET);
- a vertical distance from the lower surface of the support flange to the top of the neck portion is from 0.425 to 0.450 inches.
Dependencies are inferred from the claim text.