Retort Container Expansion Panel Pressure Management
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Solution Overview
Problem
Rigid containers used in retorting processes experience increased pressure during heating, leading to potential seal compromise, deformation, and product expulsion, necessitating the use of expensive pressure chambers to manage pressure.
Innovation Solution
A container design featuring a body with a lip, wall, support, hinge, and expansion panel that allows the internal volume to increase by displacing the expansion panel relative to the support, mitigating pressure increases without additional equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid container is used to maintain structural integrity, then the container strength is improved, but the internal pressure increases during heating which compromises the seal and causes product expulsion
Solution Approach 1:
The container incorporates a movable expansion panel that can dynamically adjust the internal volume in response to pressure changes during heating. The panel is biased by a spring mechanism to move between retracted and extended positions, allowing the container to adapt its volume to maintain pressure equilibrium and protect the seal integrity while retaining structural strength.
2Ease of manufacture
If a rigid container with fixed volume is used, then the manufacturing simplicity is improved, but the container cannot accommodate pressure increases during heating without additional equipment
Solution Approach 1:
The container employs a self-regulating pressure management system where the expansion panel automatically responds to internal pressure changes. When pressure increases during heating, the panel is forced outward to expand volume and reduce pressure; when pressure decreases, the spring bias returns the panel to its retracted position. This self-service mechanism eliminates the need for external pressure chambers or complex control systems.
3Reliability
If the container volume is increased to accommodate pressure expansion, then the seal compromise is prevented, but the container deformation occurs without proper constraints
Solution Approach 1:
The container design applies local quality by providing structural reinforcement specifically at the expansion panel and hinge regions where deformation is most likely to occur during volume changes. The rigid wall structure maintains overall container shape while the localized flexible panel allows controlled expansion. This targeted reinforcement prevents unwanted deformation while enabling necessary volume adjustment to maintain seal integrity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The container effectively manages internal pressure during heating by expanding its volume, preventing seal compromise and deformation, thus maintaining product integrity and reducing production costs by eliminating the need for pressure chambers.
Implementation Method 1
As a result of the heating, pressure within a container may increase
Data Source
AI summary
A container for a retorting process includes a body. The body is configured to be coupled to a lid such that the lid and the body define an internal volume of the container. The body includes a lip, a wall, a support, a hinge, and an expansion panel. The lip is configured to be coupled to the lid. The wall is contiguous with the lip. The support is contiguous with the wall. The support is configured to interface with a surface to support the container on the surface. The hinge is contiguous with the support opposite the wall. The expansion panel is contiguous with the hinge. The hinge is configured to facilitate displacement of the expansion panel relative to the support to selectively increase the internal volume of the container.