Closure Cap with Drainback Aperture and Child-Resistant Lock
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Solution Overview
Problem
Existing container closures do not effectively prevent product waste by allowing residual product to re-enter the container and lack child-resistant and tamper-evident features.
Innovation Solution
A closure cap system that includes a product measuring cup, spout sealer, child-resistant lock, and tamper-evident band, which seals the container, directs excess product back into the container, and requires adult intervention for removal, utilizing a combination of seals and angular positions to secure the cap.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a closure cap seals the container to prevent product removal, then product security is improved, but product waste increases due to residual product remaining in the measuring cup
Solution Approach 1:
The closure cap includes a catch basin that collects residual product from the measuring cup and a drainback aperture that allows the collected product to flow back into the container. This recovers product that would otherwise be discarded, resolving the contradiction between product security and product waste prevention
2Object-affected harmful factors
If a child-resistant lock mechanism is added to the closure cap, then safety is improved, but device complexity increases
Solution Approach 1:
The child-resistant lock mechanism is segmented into separate components: a lock tab on the closure cap and a stationary tab blocker on the container. The lock tab can be disengaged from the tab blocker to allow cap removal, providing safety without excessive complexity through modular design
3Reliability
If a tamper-evident band is coupled to the closure cap, then product protection is improved, but ease of operation deteriorates due to additional removal steps
Solution Approach 1:
The tamper-evident band is removed in advance of closure cap removal. The band is frangibly coupled to the closure cap and engages with the container to block rotation. When the band is removed along the frangible connection, it provides tamper evidence while allowing subsequent easy removal of the closure cap
Data Source
AI summary
A package includes a container and a closure cap for mounting on the container. The closure cap is coupled to a neck of the container to block selectively removal of product stored within the container at the selection of a user.