Water bottle with printable liner
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Solution Overview
Problem
Conventional insulated water bottles with foil liners suffer from distorted graphics due to crinkled profiles and loose positioning, which leads to delayed fluid dispensing when the outer shell is squeezed.
Innovation Solution
A liquid dispensing container design featuring a stretchable liner positioned between a flexible outer shell and an inner core, where the liner is compressed between the two components, allowing for immediate fluid dispensing upon squeezing and maintaining a smooth, un-distorted graphic appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a foil liner with crinkled profile is used, then the liner can be loosely positioned between inner and outer shells, but the graphics printed on the liner have a distorted appearance
Solution Approach 1:
The patent replaces the conventional crinkled foil liner with a smooth, flexible plastic liner that can be stretched to conform to the bottle's interior contours. This flexible film maintains a smooth surface for undistorted graphics while adapting to the container shape, resolving the contradiction between ease of positioning and graphic appearance.
2Ease of manufacture
If the liner is loosely positioned between inner and outer shells, then assembly is simplified, but squeezing the outer shell merely compresses air between the shells and does not immediately squeeze the inner shell to forcibly dispense liquid
Solution Approach 1:
The patent merges the liner with the inner shell by adhering it to the inner shell surface, creating a unified structure. This ensures that when the outer shell is squeezed, the force is immediately transmitted to the liquid through the adhered liner-inner shell combination, enabling immediate fluid dispensing while maintaining simple assembly through the adhesive bonding method.
3Shape
If a stretchable liner is compressed between outer shell and inner core, then uniform compression eliminates distortion and provides immediate fluid dispensing, but the device complexity increases
Solution Approach 1:
The liner is pre-stretched during the molding process to match the expanded dimensions of the bottle, then compressed as the bottle is formed. This preliminary stretching action embeds the compression capability into the liner itself, eliminating the need for additional compression mechanisms and reducing overall device complexity while achieving uniform compression and immediate dispensing.
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
The design ensures that the liner is compressed uniformly, eliminating distortion and providing immediate fluid dispensing without bunching, maintaining a smooth appearance and enhancing user experience.
Implementation Method 1
A liner is positioned between the outer shell and the inner core. The liner comprises a stretchable material that is stretched along the longitudinal axis.
Implementation Method 2
The liner is compressed between the outer shell and the inner core, allowing for immediate fluid dispensing upon squeezing and maintaining a smooth, un-distorted graphic appearance.
Data Source
AI summary
A liquid dispensing container has an outer shell including a wall having an inner surface and an outer surface. An inner core is coupled to the outer shell and has an outer surface and an inner surface that defines a reservoir configured to contain a fluid. The inner core and outer shell cooperatively define a longitudinal axis. A liner is positioned between the outer shell and the inner core. The liner comprises a stretchable material that is in stretched along the longitudinal axis.