Method of controlling vacuum and pressure within a thermoplastic container

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12017835
APP PUB NO 20230054837A1
SERIAL NO

17792326

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Abstract

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A method of forming a container and filling the container with a product. The method includes heat-set blow molding the container from a preform and hot-filling the container with the product such that the product occupies about 95% or more of a total interior volume of the container. A headspace volume is defined between a top fill line of the product and a brim of the container. The headspace volume is less than about 5% of the total interior volume of the container. The container is capped and allowed to cool. The container is configured to shrink during cooling such that the total interior volume decreases by about 0.5% to 1.5% during cooling. A base of the container is displaced after hot-filling and capping to reduce the total interior volume by less than about an additional 0.5% to 4%. The hot-filling, capping, cooling, and displacing of the base creates a pressure change within the container.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
AMCOR RIGID PACKAGING USA LLC935 TECHNOLOGY DRIVE ANN ARBOR MI 48108

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Beuerle, Frederick C Jackson, US 34 309
Dole, Omkar Kalamazoo, US 8 16
Lane, Michael T Brooklyn, US 68 1253
Mast, Luke A Brooklyn, US 50 496
Stelzer, James South Lyon, US 26 90

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