Polymeric Container Base with Standing Ring and Dimples

Solution Overview

Problem

Existing containers with 'champagne' bases are unable to withstand carbonation pressures greater than 3.2 g.v., limiting their ability to store carbonated beverages effectively.

Innovation Solution

A polymeric container with a base featuring a standing ring and curved diaphragm, including a plurality of dimples evenly spaced along the standing surface, which increases the base's rigidity and strength to support the container upright at higher carbonation levels, such as 4.2 g.v.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If existing champagne bases are used, then the container can be manufactured with conventional base design, but the container cannot withstand carbonation pressures greater than 3.2 g.v.

Engineering Contradiction:

Improvecarbonation pressure resistanceVSAvoidbase structure complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The base is segmented into multiple functional components: a standing ring with vertical walls, a curved diaphragm extending from the standing surface to a center, and a plurality of dimples defined by the base. This segmentation allows each component to address specific structural requirements for withstanding higher carbonation pressures while maintaining manufacturability through conventional molding processes.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The base incorporates a curved diaphragm that extends from the standing surface to a center of the base, creating a domed or spherical curvature. This curvature distributes stress more effectively across the base structure, enabling the container to withstand carbonation pressures greater than 3.2 g.v. (such as about 4.2 g.v.) while maintaining structural integrity.

Inventive Principle:

Principle #14Spheroidality (Curvature)

2Strength

If the base structure is simplified for easy manufacture, then manufacturing cost is reduced, but the base cannot provide sufficient rigidity to support the container upright at higher carbonation levels

Engineering Contradiction:

Improvebase rigidityVSAvoidbase manufacturing complexity

Core Design Contradiction:

StrengthVSEase of manufacture

Solution Approach 1:

The base is segmented into multiple functional components: a standing ring with vertical walls, a curved diaphragm extending from the standing surface to a center, and a plurality of dimples defined by the base. This segmentation allows each component to address specific structural requirements for withstanding higher carbonation pressures while maintaining manufacturability through conventional molding processes.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The base features localized structural enhancements including a standing ring with vertical walls at the perimeter, a curved diaphragm in the central region, and multiple dimples distributed across the base surface. These local quality variations provide targeted rigidity where needed while maintaining overall manufacturability through conventional processes.

Inventive Principle:

Principle #3Local quality

3Reliability

If conventional base design is used, then the container can be produced with standard tools, but the container experiences base rollout and reduced stability at higher carbonation pressures

Engineering Contradiction:

Improvecontainer stabilityVSAvoidbase structure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The base is segmented into multiple functional components: a standing ring with vertical walls, a curved diaphragm extending from the standing surface to a center, and a plurality of dimples defined by the base. This segmentation allows each component to address specific structural requirements for withstanding higher carbonation pressures while maintaining manufacturability through conventional molding processes.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The base incorporates a curved diaphragm that extends from the standing surface to a center of the base, creating a domed or spherical curvature. This curvature distributes stress more effectively across the base structure, enabling the container to withstand carbonation pressures greater than 3.2 g.v. (such as about 4.2 g.v.) while maintaining structural integrity.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Data Source

PatentUS11718439B2Container pressure base

Publication Date: 2023.08.08 AMCOR RIGID PACKAGING USA LLC

AI summary

A polymeric container formed from a preform and configured for storing a commodity under pressure. A base of the container includes a standing ring configured to support the container upright when the standing ring is seated on a planar standing surface. A curved diaphragm of the base extends from the standing surface to a center of the base. A plurality of dimples are defined by the base and are evenly spaced apart along the standing surface.