Tamper resistant container

The vacuum formed container with buttress and tamper-evident features addresses deformation and tampering issues, ensuring content security and visible tampering evidence without additional manufacturing steps.

US20260070712A1Pending Publication Date: 2026-03-12POLARPAK
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Patent Information

Application Number
US19/386952
Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Priority Date
2020-12-22
Filing Date
2025-11-12
Publication Date
2026-03-12

AI Technical Summary

Technical Problem

Vacuum formed containers are susceptible to deformation, allowing unauthorized access to their contents without breaking tamper-evident features, and additional manufacturing steps are often required to enhance security.

Method used

A vacuum formed container design featuring buttress features on the base rim to reinforce sides against deformation, combined with a tamper-evident frangible attachment of the lid, which includes protruding lid features and pucker elements to indicate tampering, without requiring additional manufacturing steps.

Benefits of technology

The design effectively inhibits unauthorized access to the contents until the lid is removed and provides a visible indication of tampering, maintaining structural integrity and security without extra manufacturing costs.

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Abstract

A vacuum formed, tamper resistant container resists deformation of the sides thereof that might otherwise permit access to contents of the container without removal of the lid. Downward protruding lid features reinforce the wall of the container base, and buttress features included in the rim of the base extend from a base flange diagonally downward and inward to the inner rim of a recessed shelf, thereby resisting downward rotation of the wall beneath the lid protruding features. In embodiments, attachment tabs surrounded by frangible boundaries are incorporated in the lid and attached to the base by living hinges, such that removal of the lid requires breaking of the frangible boundaries and detachment of the lid from the attachment tabs. Pucker elements associated with the attachment tabs can cause the attachment tabs to pivot away from the lid when the attachment tabs are detached from the lid.
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