Flip-Top Closure And Package
The flip-top closure with frangible connections and locking mechanisms addresses the challenges of cost, usability, and recyclability in tamper-evident polymeric closures by ensuring easy opening and recycling through a single-material design.
US20250340344A1Pending Publication Date: 2025-11-06CLOSURE SYST INT INC
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Patent Information
- Application Number
- US19/267958
- Authority / Receiving Office
- US · United States
- Patent Type
- Applications(United States)
- Current Assignee / Owner
- Priority Date
- 2023-03-28
- Filing Date
- 2025-07-14
- Publication Date
- 2025-11-06
AI Technical Summary
Technical Problem
Existing tamper-evident polymeric closures for containers are costly, difficult to open for users with upper extremity limitations, and hinder post-consumer recycling due to the use of separate materials and foil liners.
Method used
A flip-top closure design featuring a polymeric top wall with tamper-evident winged sections connected via frangible connections, a polymeric annular skirt with external threads, and a hinge mechanism that breaks to lockingly engage with locking protrusions, facilitating easy threading and preventing tampering.
Benefits of technology
The design provides effective tamper-evidence, ease of use for all users, and supports post-consumer recycling by using a single material for the closure and container, reducing environmental waste.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure US20250340344A1-D00000_ABST
Abstract
A flip-top closure includes first and second closure portions. The first closure portion includes a top wall portion with a tamper-evident winged section and a middle section, which are connected via a frangible connection. The winged section forms an undercut. The top wall portion includes a drivable structure to assist in threading the flip-top closure into a container. The second closure portion includes an annular skirt portion and a ledge. The annular skirt portion forms an external thread formation. The ledge includes at least one locking protrusion. A hinge connects the first and second closure portions. In an initially closed position, the undercut of the winged section corresponds with and lockingly engages with the locking protrusion. During movement of the hinge from the initially closed position to an open position, the frangible connection breaks leaving the winged section being lockingly engaged with the locking protrusion.
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