Closures To Prevent Refilling TRIZ Cases
- Spill-Proof Drinking Vessel Lid with Pressure-Activated One-Way Valve
See how a one-way valve in a straw-lid assembly uses pressure differential to prevent spills du
- Anti-Tipping Pourer Valve Structure Against Pressure Refilling
A weighted valve core below the transition surface keeps pourer cavities sealed under pressure, blocking fraudulent container refilling.
- Polymer Closure Assembly With Non-Planar Torque Ribs
Non-planar torque ribs engage container flanges to raise retention torque while removing metallic liners and secondary seals for easier recycling.