Paperboard Container Closure With Controlled Pouring Spout
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Solution Overview
Problem
Existing paper-based containers face challenges in controlled dispensing and secure reclosing, particularly due to uncontrollable pouring and difficulty in managing flaps, which leads to spills and inconvenience.
Innovation Solution
A container design featuring a paperboard shell with a removable portion and cap portion, guided by a core layer, allowing for controlled dispensing and secure reclosing through a wedging mechanism using lobes and a frictional fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If flaps are added to the container end to enable opening and closing, then the container can be reclosed to protect contents, but the flaps interfere with pouring and make it difficult to controllably dispense contents
Solution Approach 1:
The container end is divided into multiple functional zones: a first zone with flaps for secure closure, a second zone with a dispensing opening for controlled pouring, and a third zone with a pour spout for directed flow. This segmentation allows each zone to perform its specific function without interfering with others, resolving the contradiction between secure closure and controlled dispensing.
Solution Approach 2:
A pour spout structure acts as an intermediary element between the dispensing opening and the contents. The pour spout channels and directs the flow of contents, providing control over the pouring process while the flaps remain in place to secure the container when closed.
2Ease of manufacture
If the container is designed as a simple prism or cylinder for ease of manufacture, then manufacturing is simplified, but pouring occurs over the open rim resulting in uncontrollable pouring and spills
Solution Approach 1:
The container end is divided into multiple functional zones: a first zone with flaps for secure closure, a second zone with a dispensing opening for controlled pouring, and a third zone with a pour spout for directed flow. This segmentation allows each zone to perform its specific function without interfering with others, resolving the contradiction between secure closure and controlled dispensing.
Solution Approach 2:
The simple two-dimensional rim is transformed into a three-dimensional structure with vertical flaps and an integrated pour spout. This dimensional change adds functional complexity (secure closure and controlled pouring) while maintaining the overall simple prism or cylindrical container shape for ease of manufacture.
3Reliability
If multiple flaps and slots are added to the container end for opening and closing functionality, then the container can be securely closed, but the complexity of managing multiple flaps and slots increases inconvenience
Solution Approach 1:
Multiple functional elements (flaps for closure and a pour spout for controlled dispensing) are merged into a single integrated structure at the container end. This unified design reduces the number of separate components to manage while maintaining secure closure capability and adding controlled pouring functionality.
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
Enables controlled dispensing and secure reclosing, reducing spills and enhancing user convenience by allowing precise dosing and stable closure.
Implementation Method 1
a frictional fit between the cap portion and the core layer when the cap portion is fitted over the body portion
Implementation Method 2
a wedging mechanism using lobes and a frictional fit
Data Source
AI summary
A container including a paperboard shell layer and a paperboard core layer. The container has a predetermined removable portion the provides for a separable cap portion. The body portion of the container extends from the shell bottom edge to a lower line of limitation. The core layer has a core rim located at a rim distance that is a function of position about the longitudinal axis of the container.