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 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 tamper-evident formation, threads, and a dispensing opening at the top of the neck portion. In embodiments, a closure may be provided to form an assembly. In an embodiment, the weight of the neck portion is 2.3 grams or less; a vertical distance from the lower surface of the tamper-evident formation to a top of the dispensing opening is 0.30 or less; and/or the container may be filled with a beverage. In embodiments, the volume of the container may be at least 500 ml. A preform and method for making a container are also disclosed.
Claims30
A container assembly comprising:
- (i) a plastic blow molded 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, and a radially extending tamper-evident formation positioned below the threads, the tamper-evident formation having a lower surface;
- and
- (ii) a closure configured to receive the threads;
- wherein the container is formed of a material comprising polyethylene terephthalate (PET);
- a weight of the neck portion is 2.3 grams or less;
- a combined weight of the lower supporting base portion, the sidewall portion and the neck portion is 10 grams or less;
- a vertical distance from the lower surface of the tamper evident formation to a top of the dispensing opening is 0.30 inches or less;
- a ratio of a height of a center of gravity of the container to container height is less than 0.57;
- a volume of the container is at least 500 ml when the container is filled with a beverage;
- and an inner diameter of the dispensing opening is at least 22 mm.
A container assembly comprising:
- (i) a plastic blow molded container comprising:
- a base portion;
- a sidewall portion;
- and
- a neck portion;
- the neck portion including threads and a radially extending tamper-evident formation;
- (ii) a closure configured to receive the threads;
- wherein the container is formed of a material comprising polyethylene terephthalate (PET);
- a vertical distance from a lower surface of the tamper-evident formation to a top of the neck portion is 0.30 inches or less;
- a weight of the neck portion is 2.3 grams or less;
- a combined weight of the base portion, the sidewall portion and the neck portion is 11 grams or less;
- and the container is filled with a beverage.
A container assembly comprising:
- (i) a plastic blow molded container comprising:
- a base portion;
- a sidewall portion;
- and
- a neck portion;
- the neck portion including threads and a radially extending tamper-evident formation;
- (ii) a closure configured to receive the threads;
- wherein the container is formed of a material comprising polyethylene terephthalate (PET);
- a vertical distance from a lower surface of the tamper-evident formation to a top of the neck portion is 0.30 inches or less;
- a weight of the neck portion is 2.3 grams or less;
- a combined weight of the neck portion, the sidewall portion, and the base portion is 10 grams or less;
- a volume of the container is at least 500 ml;
- an inner diameter of the dispensing opening is at least 22 mm;
- and the container is filled with a beverage.
A container assembly comprising:
- (i) a plastic blow molded 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, and a radially extending tamper-evident formation positioned below the threads, the tamper-evident formation having a lower surface;
- and
- (ii) a closure configured to receive the threads;
- wherein the container is formed of a material comprising polyethylene terephthalate (PET);
- the threads comprise multiple-lead threads;
- the tamper-evident formation is vertically spaced from the threads;
- the sidewall portion is cylindrical and includes strengthening ribs;
- a weight of the neck portion is 2.3 grams or less;
- a combined weight of the lower supporting base portion, the sidewall portion and the neck portion is 10 grams or less;
- a vertical distance from the lower surface of the tamper evident formation to a top of the dispensing opening is 0.30 inches or less;
- a volume of the container is at least 500 ml;
- the container is filled with a beverage;
- and an inner diameter of the dispensing opening is at least 22 mm.
Dependencies are inferred from the claim text.