Tamper Evident Cap with Movable Pads and Removable Tabs
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Solution Overview
Problem
Current dispensing containers, such as aerosol cans, are easily tampered with in stores, leading to damage and misuse of contents without purchase, and existing solutions fail to provide clear indication of tampering.
Innovation Solution
A tamper evident cap for aerosol cans featuring movable pads and removable tabs that detach upon tampering, allowing consumers to visibly identify and prevent unauthorized use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional cap is used on an aerosol can, then the can is easy to open and use, but the can cannot provide clear indication of tampering and is susceptible to unauthorized use
Solution Approach 1:
The cap is segmented into multiple functional components: a body portion, movable pads, and tabs with frangible sections. This segmentation allows each component to perform its specific function - the tabs provide tamper indication through frangible sections that break upon unauthorized opening, while the movable pads enable controlled release after purchase, resolving the contradiction between reliability and complexity.
Solution Approach 2:
The cap incorporates dynamic elements including movable pads that can shift position and tabs with frangible sections that transition from intact to broken state. These dynamic features provide clear visual indication of tampering status while maintaining a relatively simple overall structure, addressing the technical contradiction.
2Ease of operation
If the cap is made easily removable for consumer use, then the ease of operation is improved, but the ability to detect tampering is reduced
Solution Approach 1:
The frangible sections are pre-positioned on the tabs in a vulnerable state, ready to break upon unauthorized opening attempts. This preliminary arrangement ensures that any tampering attempt automatically leaves visible evidence, while the movable pads remain intact until the consumer intentionally activates them after purchase, resolving the contradiction between ease of operation and tamper detection.
3Reliability
If tabs are added to restrict pad engagement, then tamper detection capability is improved, but the device complexity increases
Solution Approach 1:
The tab structure merges multiple functions into a single component: the tab itself provides structural support, the frangible section provides tamper indication, and the tab's positioning restricts pad engagement. This merging reduces overall complexity compared to having separate components for each function, while maintaining high reliability for tamper evidence.
Data Source
AI summary
Described herein is a tamper evident cap for an aerosol can. The tamper evident cap includes a sidewall and a top surface, the sidewall and the top surface define an inner cavity. The tamper evident cap includes a pair of opposing pads movably positioned relative to the sidewall and configured to release the tamper evident cap from the aerosol can. The tamper evident cap includes a pair of tabs positioned relative to the sidewall and outward relative to the pair of opposing pads, where each tab of the pair of tabs is positioned to restrict engagement with a corresponding pad of the pair of opposing pads, where each tab of the pair of tabs is at least partially removable from the sidewall.