Closure Using Stoppers TRIZ Cases

See how a segmented stopper with nested seal and air pathway prevents leaks during handling whi

See how a resilient lid adaptation device automatically adjusts container volume to minimize ai

See how a cam-triggered lid with removable sealing assembly enables one-handed opening while al

An arched flange redirects clogged liquid or gel flow ventrally, preventing erratic spray toward the user's face or eyes.

A flexible pump coupling and locking sleeve ease refill insertion, improve alignment, and damp actuation forces that can shear foam.

An integrated venting and valve assembly enables spill-free fluid pouring while preventing leakage and accidental opening.

A vent seal opens before the stopper to equalize container pressure and prevent hot liquid or gas spray during one-handed drinking.

Interchangeable key patterns match bottle depressions to block wrong refills, prevent clogging, and adapt dispensers to packaging changes.

An arched flange acts as a baffle to redirect clog-disturbed liquid or gel flow ventrally, keeping dispensing clean and away from the user's face.

Bottom-up filling uses a magnetic valve coupling to suppress foam, reduce waste, and flush stale liquid between dispensing cycles.

Bottom-up filling uses a magnetic coupling and valve assembly to reduce foam, cut liquid waste, and simplify dispensing and cleaning.

A flange lock, pin stud, and adhesive back plate secure shower bottles against tampering while allowing authorized replacement without wall damage.

A rotating tab within an arcuate recess seals or opens the drinking port, reducing spills while simplifying lid operation and manufacture.

Radial flanges and notch geometry let one container lock into multiple dispenser housings while maintaining secure axial support and alignment.

A removable push-button or keyed access module lets one dispenser cover balance security, restocking speed, and inventory simplicity.

A threaded closure forms inward-facing metal threads under axial tension to prevent loose sealing, blowout, and reclosure issues.

Internal bottle-neck threads formed after cap insertion enable a lower-cost metal container to reseal reliably and resist leakage under pressure.

Internal neck threads formed by compression enable a pressure-resistant resealable metal container with lower leakage risk and less product waste.

Internal neck threads and a separate seal let a metal beverage container reclose securely while reducing leakage, cost, and pressure failure.

A radially smaller stopper sealing area maintains uniform contact pressure and low helium leakage in pharmaceutical containers down to -180°C.

A transverse channel and internal conduit let fluid drain through the plug while multiple seal grooves cut leak paths, splashes, and wear.

A compressed stopper, cage, and visual indicator make container seal tampering easy to detect without opening the closure.

Elastic deformation seals liquids in a flexible valve, while plastic construction lowers tap costs and supports tamper evidence.