System and method for making an ice straw
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Solution Overview
Problem
The environmental impact of plastic and paper drinking straws, including plastic pollution and resource depletion, necessitates a more sustainable alternative.
Innovation Solution
A method and system for creating degradable drinking straws made from frozen liquids, such as ice, using a reservoir and controlled temperature changes to form and release the straws, allowing for their use as fluid conduits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If plastic drinking straws are used, then durability and reusability are improved, but plastic pollution and environmental harm worsen
Solution Approach 1:
The patent changes the material parameter from persistent plastic to biodegradable ice, transforming the environmental impact while maintaining the drinking straw function. The ice straw provides temporary durability during use then naturally degrades, eliminating plastic pollution.
Solution Approach 2:
The invention employs disposable ice straws that serve their purpose temporarily and then naturally melt away. This short-lived object approach eliminates the need for persistent plastic materials while still providing functional durability during the intended use period.
2Object-generated harmful factors
If paper drinking straws replace plastic straws, then plastic pollution is reduced, but resource depletion from tree cutting and manufacturing worsens
Solution Approach 1:
The ice straw uses water, an abundant renewable resource, to create a disposable drinking straw that melts after use. This eliminates dependence on tree resources while reducing plastic pollution, as water can be continuously replenished unlike forest resources.
Solution Approach 2:
The ice straw utilizes the natural melting property of ice to serve its own disposal function. After cooling the beverage, the ice straw automatically melts and disappears, eliminating the need for separate disposal infrastructure required by paper straws.
3Object-generated harmful factors
If ice straws are used, then environmental friendliness and degradation are improved, but manufacturing complexity and temperature control requirements worsen
Solution Approach 1:
The manufacturing process exploits the phase transition of water from liquid to solid during freezing, and from solid to liquid during melting. This natural physical phenomenon simplifies the manufacturing complexity by eliminating the need for complex material processing equipment required for plastic or paper straws.
Solution Approach 2:
The invention replaces complex mechanical manufacturing systems (extruders, molders, cutters) with a simple thermal system. The ice straw is formed by freezing water around a mold or tube, and released by melting, substituting mechanical fabrication with thermal phase change processes.
4Temperature
If ice straws are used, then cooling functionality is improved, but release from mold requires additional heating steps
Solution Approach 1:
The same phase transition principle that provides cooling functionality (freezing) also enables easy release (melting). By utilizing the reversible nature of water's phase change, the system achieves both the desired cooling effect during use and simplified release during manufacturing without requiring additional complex mechanisms.
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
Provides an environmentally friendly drinking straw that cools beverages and degrades over time, reducing plastic waste and resource consumption.
Implementation Method 1
filling the tube with a first fluid at a temperature at or below the freezing point of the liquid, causing at least a portion of the liquid in the reservoir to freeze around the tube
Implementation Method 2
filling the tube with a second fluid at a temperature at or above the melting point of the degradable drinking straw, causing the degradable drinking straw to partially melt at the contact points with the surface of the tube
Data Source
AI summary
A system and method for making degradable drinking straws made of ice (or other frozen liquid(s)). The system may comprise one or more tubes configured to extend into a reservoir. The tubes may each be in fluid communication with a connecting bar, wherein fluid (e.g., a liquid and/or a gas) within the connecting bar may be directed into the tubes. The system may comprise a source of cold fluid and a source of hot fluid in fluid communication with the connecting bar. The degradable straw may comprise a wall (or thickness) made of ice with a hollow, cavity, and/or void space through the straw. The degradable straw may serve to cool the drink (as any other piece of ice within the drinking liquid) via placement in a drink and/or via the drink passing through the void space into a user's mouth.