Leak-Proof Closure Design for Liquid Containers
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Summary
Problems
Existing closure devices for liquid containers, particularly designed for children, require complex molding processes, leading to high manufacturing costs and potential leakage issues.
Innovation solutions
A closure device featuring a collar with an elastically deformable membrane and lock flanges that forms a seal around the container's neck, allowing easy drinking while preventing leakage, with simple shapes to reduce molding costs.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If complex shaped parts are used to achieve reliable sealing and prevent leakage, then sealing reliability is improved, but manufacturing cost increases due to complex molding processes
Why choose this principle:
The closure device is divided into distinct functional segments: a collar component with sealing surface, a membrane component with aperture, and lock flanges. Each segment has a simple geometry that is easy to mold separately, yet together they achieve reliable sealing through the coordinated arrangement of the seal along the collar lip and the membrane aperture
Principle concept:
If complex shaped parts are used to achieve reliable sealing and prevent leakage, then sealing reliability is improved, but manufacturing cost increases due to complex molding processes
Why choose this principle:
The patent employs a flexible membrane as the closing element instead of a rigid complex-shaped plug. This thin film structure is simple to manufacture yet provides effective sealing when pressed against the collar lip by the elastic deformation of the membrane itself, eliminating the need for complex molded sealing features
Application Domain
Data Source
AI summary:
A closure device featuring a collar with an elastically deformable membrane and lock flanges that forms a seal around the container's neck, allowing easy drinking while preventing leakage, with simple shapes to reduce molding costs.
Abstract
A closure device for containers suitable for holding liquids may include: a collar adapted to be applied to a neck of a liquid container, the collar having a lip; an elastically deformable membrane, configured to connect to the collar and to close the liquid container, wherein the membrane is configured to rest upon the lip and to define a seal along the lip, and wherein the seal is at least partially releasable by pressure exerted by a mouth of a user; and first and second flanges. The first flange is formed as a single piece with the membrane. The second flange is fixed to the collar to be locked between the first flange and the membrane. The first flange includes: a first portion projecting out of the membrane; and a second portion projecting out of the first portion. The second portion is oriented perpendicularly to the first portion.