Closure Assembly Piercing Membrane Sealed Containers
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Solution Overview
Problem
Existing membrane sealed container closures fail to open without hand contact, risk membrane fragments falling into the container, and do not allow for easy resealing after partial use.
Innovation Solution
A closure assembly with an annular side wall, top wall, and piercing members, featuring a recessed surface and directional plows that allow for deep membrane penetration and removal without fragments falling in, and enable resealing by using a snap-fit mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a cutting device or internal cutters are used to open the membrane, then the membrane can be opened, but membrane fragments may fall into the container contents
Solution Approach 1:
The patent extracts and removes the membrane completely from the container opening using a pulling tab mechanism. The membrane is designed to be fully detached and pulled away from the container, ensuring no fragments remain or fall into the contents. This resolves the contradiction by providing effective membrane opening while eliminating the harmful effect of fragment contamination.
Solution Approach 2:
The patent introduces a plow base member as an intermediary element between the cutting action and the container contents. This plow base member acts as a barrier or mediator that prevents membrane fragments from falling into the container, thus resolving the contradiction by maintaining opening capability while blocking the harmful effect.
2Manufacturing precision
If additional tools are required to open the membrane, then precise membrane cutting can be achieved, but the convenience of hands-free opening is lost
Solution Approach 1:
The patent implements a self-service opening mechanism where the closure assembly automatically performs the membrane opening function without requiring additional tools or hand contact. The piercing members and plow base member work together in an automated sequence when the closure is applied, achieving both precise cutting and hands-free operation.
Solution Approach 2:
The patent merges the cutting function and the membrane removal function into a single integrated closure assembly. The piercing members, plow base member, and pulling tab mechanism are combined in one device that performs both functions automatically, thus achieving precise membrane cutting while maintaining hands-free operation convenience.
3Reliability
If the membrane is completely sealed to prevent contamination, then product safety is improved, but the ability to reseal after partial use is reduced
Solution Approach 1:
The patent implements a dynamic closure system that can transition between sealed and open states. The closure assembly is designed to be removable and reapplicable, allowing the membrane to be resealed after partial use. This dynamic design maintains product safety during storage while enabling adaptability for resealing, thus resolving the contradiction between reliability and versatility.
Data Source
AI summary
A closure assembly for piercing and creating access to a container whose mouth is normally sealed by a thin membrane applied to a rim of the container.