Stackable Hollow Plastic Container With Integral Handle And Chime
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Solution Overview
Problem
Conventional plastic containers for pressurized fluids are not stackable due to their shape, which requires separate molded parts for handles and chimes, increasing material costs and manufacturing complexity, and are often made from heavy PET or non-recyclable materials.
Innovation Solution
A stackable plastic container with integral handles and chimes molded during the injection stretch blow molding process, eliminating the need for separate parts and allowing for easier handling, stacking, and recycling, while maintaining structural integrity to withstand internal pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the container is made with a spherical or cylindrical shape to withstand internal pressure, then the strength is improved, but the stackability deteriorates
Solution Approach 1:
The patent merges the chime and handle features directly into the container body during the injection stretch blow molding process, creating an integrated structure that provides both pressure resistance and stackability without requiring separate components. The chime is formed as an integral part of the container wall, eliminating the need for separately molded parts.
2Ease of operation
If separate molded parts (chimes and handles) are added to the container, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The chime and handle are combined into a single integrated feature molded directly into the container body, eliminating the need for separate components and assembly steps. This reduces manufacturing complexity while maintaining ease of handling and stacking operations.
Solution Approach 2:
The integrated chime-handle structure serves multiple functions simultaneously: it provides stacking capability through the chime portion, handling capability through the handle portion, and structural reinforcement for pressure resistance, all within a single molded feature.
3Strength
If strong plastics like PET are used to withstand internal pressure, then the strength is improved, but the weight increases
Solution Approach 1:
The patent changes the structural parameters of the container by incorporating an integrated chime-handle feature that optimizes material distribution and structural efficiency, allowing the use of lighter plastics while maintaining pressure resistance capabilities.
4Ease of manufacture
If separately molded chimes and handles are used, then the ease of manufacture is improved, but the loss of substance increases
Solution Approach 1:
The chime and handle are merged into a single integrated feature molded directly into the container body, eliminating the need for separate components and the material waste associated with producing and assembling multiple parts. This reduces overall material usage while maintaining manufacturing efficiency.
Data Source
AI summary
A stackable plastic container includes a neck area; a body portion with a base; an integral handle part located around the neck area of the container, in which the handle part includes one or more handles for carrying and handling the container; and an integral first chime configured to receive and/or cooperatively engage the base of an identical container.