Rotatable Dispensing Cap with Sinuous Passage for Metered Dosing
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Solution Overview
Problem
Existing caps for containers cannot efficiently dispense contents in both poured and metered dose forms simultaneously, lacking a mechanism to provide a sinuous passage for dosed dispensing without risking part loss or complex operation.
Innovation Solution
A cap design with a lower and upper part that can be rotated to create either a straight or sinuous passage through the cap, allowing for pouring, scattering, and dosed dispensing, with the upper part rotating around the main axis to switch between closed, pouring, and dosed positions, ensuring the cap remains intact and easy to use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a cap is designed with a hinged flap or rotatable part to control dispensing, then the contents can be dispensed in controlled quantities, but the structure becomes complex and parts may be lost
Solution Approach 1:
The cap is divided into a lower part and an upper part that can rotate independently relative to each other. The lower part has a first barrier and the upper part has a second barrier, creating separate functional zones that work together to control dispensing through a sinuous passage without requiring complex hinged mechanisms
Solution Approach 2:
The rotatable upper part serves multiple functions: it can be positioned to create a straight passage for pouring/scattering, a sinuous passage for metered dosing, or a closed position to seal the container. This single rotating component replaces what would otherwise require multiple separate mechanisms
2Adaptability or versatility
If a cap allows both pouring and metered dose dispensing, then versatility is improved, but the mechanism becomes more complex
Solution Approach 1:
The cap transitions between different dispensing modes dynamically through rotation of the upper part. The barriers move from fixed positions to create either straight or sinuous passages, allowing the same physical structure to adapt its function based on the rotational position rather than requiring separate mechanisms for each mode
3Measurement precision
If a cap uses a sinuous passage for dosed dispensing, then metered dosing is achieved, but the passage complexity increases
Solution Approach 1:
The sinuous passage is created through the curved rotational movement of the barriers rather than complex carved channels. The passage naturally forms a curved, S-shaped path as the barriers redirect the flow, achieving precise metered dosing through geometric redirection rather than complex passage construction
Data Source
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AI summary
The invention proposes a cap (10) for a container (20) with a mouth such as a bottle, comprising a lower part for (100) attachment to the mouth of the container, and an upper part provided on an rotatable relative to the lower part, wherein the upper part has a dispensing orifice (240) and the lower and upper parts can be rotated into: > a first position, where there is no passage through the cap and the contents of the container cannot be dispensed from the dispensing orifice; > a second position, where ther is a straight passage through the cap and the contents of the container can be dispensed from the dispensing orifice by pouring or scattering; and > a third position, where there is a sinuous passage through the cap, and the contents of the container to be dispensed from the dispensing orifice in a preset dosed quantity.