Baffled Dispensing Closure for Spill Control
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Solution Overview
Problem
Existing squeeze-type container closures fail to prevent direct flow or spurting of products when the container is inverted, leading to unnecessary waste and spills.
Innovation Solution
A two-piece dispensing closure with an insert member featuring one or more half-moon shaped baffles along its sealing tube, which restricts direct flow by forcing the product to flow between the baffles, and a rotatable closure body with a stop mechanism and child-resistant locking, allowing controlled dispensing when the container is inverted and squeezed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional closure is used, then the container can be opened freely, but the product spurts directly out when inverted causing waste and spills
Solution Approach 1:
The closure is divided into two functional parts: an insert member with baffles that remains in the container, and a closure body that threads onto it. The insert member segments the flow path to prevent direct spitting, while the closure body maintains easy opening capability through rotational movement.
Solution Approach 2:
The baffles act as an intermediary element between the product and the exit opening. They intercept and redirect the product flow, forcing it to follow a controlled path rather than spitting directly out, thus reducing waste while maintaining ease of operation.
2Loss of substance
If baffles are added to restrict direct flow, then product waste is reduced, but the device complexity increases
Solution Approach 1:
The closure system is segmented into two independent components: the insert member containing the baffle structure and the closure body. This segmentation allows the complex baffle feature to be added without complicating the entire closure, as each part can be manufactured and assembled separately.
Solution Approach 2:
The baffle structure is extracted as a separate functional element (the insert member) that can be removed and replaced. This extraction allows the complex flow-control feature to be isolated, making the overall system more manageable and easier to manufacture despite the added complexity.
3Productivity
If the closure body is made rotatable with stop mechanism, then controlled dispensing is achieved, but the manufacturing complexity increases
Solution Approach 1:
The rotational control mechanism is segmented into simple geometric features: protrusions on the closure body and corresponding recesses or stops on the insert member. This segmentation transforms a potentially complex locking mechanism into simple interlocking geometric elements that are easy to manufacture.
Solution Approach 2:
The stop mechanism uses simple, inexpensive geometric features (protrusions and recesses) rather than complex mechanical components. These simple features provide sufficient control for the application without requiring precision-engineered parts, reducing manufacturing complexity and cost.
Data Source
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AI summary
A dispensing closure having a closure body and an insert member for dispensing a product from a container. The insert member includes a base and a sealing tube. The base is configured and arranged for seating within an open end of the product container. The sealing tube extends upwardly from the base. The sealing tube has a sealing tip portion at an upper end thereof. The sealing tube further includes one or more baffles spaced apart along the sealing tube. Each of the baffles positioned along a different horizontal axis to restrict direct flow of a product out of the dispensing closure. In operation, the closure body moves relative to the relative to the insert member between a closed position to prevent a baffled flow product to exit the exit orifice area and an open position to allow a baffled flow of product to exit the exit orifice area.