Flip Top Cap With Breakable Engagement Means
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Solution Overview
Problem
Existing flip top caps for containers are complex and costly to produce, with multiple components and assembly requirements, failing to provide simple, inexpensive, and tamper-evident solutions for ensuring the integrity of liquid products during distribution.
Innovation Solution
A flip top cap design featuring a single-piece construction with breakable engagement means between the cover and pourer parts, ensuring irreversible first opening and easy assembly, utilizing a hinge arrangement and breakable appendages to prevent reclosure and reveal tampering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple components and assembly operations are used to ensure tamper evidence, then reliability of tamper detection is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges the cover part and pourer part into a single integrated component with breakable engagement means built-in. The breakable appendages are formed as integral parts of the cap structure during molding, eliminating the need for separate tamper-evident components and complex assembly operations while maintaining reliable tamper detection capability
Solution Approach 2:
The cap structure performs multiple functions: sealing the container, enabling pouring, and providing tamper evidence all through a single integrated design. The breakable engagement means serve both as closure mechanism and tamper-detection system, eliminating the need for separate dedicated tamper-evident components
2Reliability
If multiple components and assembly operations are used to ensure tamper evidence, then reliability of tamper detection is improved, but manufacturing cost increases
Solution Approach 1:
The patent combines multiple functions and components into a single molded part, requiring only one molding operation instead of multiple assembly steps. The breakable appendages are formed integrally with the cap body during the molding process, significantly reducing manufacturing complexity and cost while maintaining tamper detection reliability
Solution Approach 2:
The tamper-evident breakable engagement means are pre-formed as integral parts of the cap structure during the initial molding process. This preliminary formation eliminates the need for subsequent assembly operations and reduces manufacturing steps, thereby lowering production costs while ensuring reliable tamper detection from the start
3Reliability
If complex assembly operations are used to position cap parts, then sealing reliability is improved, but ease of manufacture deteriorates
Solution Approach 1:
The patent merges the cover part and pourer part into a single integrated component with built-in breakable engagement means. This eliminates the need for separate assembly operations to position and secure the parts relative to each other, simplifying manufacturing while maintaining sealing reliability through the integrated design
Solution Approach 2:
The cap structure is pre-formed as a single molded piece with all engagement means and sealing elements already in their final positions. This preliminary formation during molding eliminates complex assembly operations required to achieve proper positioning and sealing, thereby improving ease of manufacture while maintaining sealing reliability
Data Source
AI summary
A flip top cap for containers providing evidence of first opening includes a cover part and a pourer part coupled by a hinge arrangement and produced as a single piece. The cover part is rotatable around the hinge arrangement to be brought from a closed position engaging the pourer part to an open and separate position with respect to the pourer part, an engagement system engaging the cover part after rotation into a closed position on the pourer part. The engagement system is breakable and is arranged partly on the cover part and partly on the pourer part, and remains integral with at least one of the cover or pourer parts when they are broken at the first opening.