Integral Filter Straw for Progressive Beverage Additive Release
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Solution Overview
Problem
Existing methods for adding soluble agents to beverages through straws are often complex and costly, particularly in disposable forms, as they require multiple components and complicated designs.
Innovation Solution
A drinking straw with integrated filtration means at both ends, where the sidewalls are formed into filtration structures to retain soluble pellets while allowing liquid passage, eliminating the need for additional components and simplifying the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate components are used for filtration and pellet retention in the straw, then the filtration function is achieved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines multiple separate components (filtration means, pellet retention structure, and straw body) into a single integrated straw structure. The sidewall of the straw itself is formed with filtration features that simultaneously retain pellets and filter the beverage, eliminating the need for separate filtration components and reducing overall device complexity while maintaining reliable filtration function.
Solution Approach 2:
The straw sidewall is designed to perform multiple functions simultaneously: it serves as the structural body of the straw, provides pellet retention through its geometry, and acts as a filtration medium through integrated perforations or porous sections. This multi-functionality reduces the number of separate components needed while ensuring reliable operation.
2Reliability
If multiple separate components are used for filtration and pellet retention, then the filtration function is achieved, but the manufacturing cost increases
Solution Approach 1:
The patent combines multiple separate components (filtration means, pellet retention structure, and straw body) into a single integrated straw structure. The sidewall of the straw itself is formed with filtration features that simultaneously retain pellets and filter the beverage, eliminating the need for separate filtration components and reducing overall device complexity while maintaining reliable filtration function.
Solution Approach 2:
The integrated straw design is optimized for disposable use, where the entire straw including filtration features is manufactured as a single low-cost item. This approach eliminates the need for expensive assembly of multiple components and makes the disposable version economically viable while maintaining reliable filtration performance.
3Ease of manufacture
If the filtration means are formed from the sidewall, then the manufacturing complexity is reduced, but the liquid flow resistance may increase
Solution Approach 1:
The straw sidewall is designed with localized filtration sections rather than uniform filtration throughout. Specific portions of the sidewall contain perforations or porous material concentrated where needed for pellet retention and filtration, while other sections maintain open geometry to minimize flow resistance. This local differentiation allows the integrated design to achieve both manufacturing simplicity and adequate liquid flow.
Solution Approach 2:
The filtration sections of the sidewall utilize porous materials or patterns of perforations that provide sufficient surface area for effective filtration and pellet retention while maintaining adequate porosity to allow liquid to pass through with minimal resistance. The pore size and distribution are optimized to balance filtration effectiveness with flow efficiency.
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
This approach reduces production costs and complexity, providing a cost-effective method for adding flavorings or other agents to beverages while ensuring unimpeded liquid flow and efficient dissolution of agents, with enhanced control over flavor intensity and reduced waste.
Implementation Method 1
first filtration means formed from the sidewall adjacent the first end to retain the pellets substantially within the tube while allowing the carrier liquid to be drawn through the tube by oral suction
Implementation Method 2
a plurality of pellets containing a measure of soluble active ingredient; adapted progressively to add an active ingredient to a carrier liquid
Data Source
AI summary
A drinking straw for progressively adding an active ingredient to a carrier liquid as the liquid is drawn through the straw. The straw includes a generally elongate tubular body having an internal bore and a sidewall. The tube includes first and second filters and disposed at respective first and second ends and, of the tube. Together, the first and second filters retain a predetermined measure of soluble active ingredients within the bore of the tube, while allowing a carrier liquid to be drawn through the straw, by oral suction. The active ingredient, takes the form of a plurality of solid pellets. Each filter is formed by blocking, closing or constricting the tube at or adjacent the corresponding end and providing at least one aperture sized to be sufficiently small to retain the pellets within the tube whilst sufficiently large to allow passage of liquid.