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.

A sealed housing and pressure-actuated inner and outer spray rods preserve beverage freshness while enabling compact, controlled dispensing.

Mechanical snap-fit, interference-fit, or screw connections replace adhesives in a container stopper, preserving fragrance and connection stability.

A dissipative closure conducts liquid electrostatic charges to ground while preserving sealing and simplifying container safety.

A rotatable inner stopper aligns scraping holes during applicator insertion, reducing residue, waste, and finger contamination.

A flexible sleeving member prevents plug loss, while elastic baffles close slits to limit air and liquid leakage.

A fluid dispenser uses a separate nozzle attachment with an automatic closure mechanism to prevent contamination.

Integrating a monolithic plastic spring and piston rod with breakable connections reduces component count and assembly steps for trigger sprayers.

A fluid dispenser member uses a guide wall with a larger inside diameter to facilitate core withdrawal during molding.

A child-resistant cap uses a shape-memory skirt to engage and disengage from containers without fulcrum elements.

A replaceable liner with a rim-facing surface and sealant creates a vapor-tight interface between the hatch rim and gasket.

A circular cork stopper with a recessed plugging part accommodates dimensional variability in container openings to ensure consistent sealing performance.

Segmented cap and skirt locking mechanism activates tamper evidence through relative movement, preventing closure ejection under internal pressure.

A container sealing device uses reverse threads to separate the plug from the closure.

Nested inverting cap keys align to depress spray activator, preventing accidental child exposure.

A container assembly uses a perforated chamber to release water and maintain internal humidity.

Segmented lock portions with asymmetric key engagement resolve the trade-off between device security and operational complexity in loadable bait stations.

A suction mandrel attaches a septum and pushes it through a tapering setting channel to elastically compress the component for secure clamping.

A tension band connects recess sides on a stopper head to cover the slide element, preventing extraction during tight force fit sealing.

Six-part molded trigger sprayer design reduces device complexity and manufacturing costs while maintaining reliable fluid dispensing functionality.

A dispensing device uses a rotary coupling between a transparent protective cap and spray head for secure handling.

Segmented channels and apertures in the fitment maintain smooth fluid movement while controlling the overall flow rate.

Segmenting the rigid body from the disposable elastomeric cup prevents over-seating while allowing the tapered cup to conform to irregular bungholes.

A container closure lever mechanism creates a secure seal through snap engagement and elastic biasing.

Segmented removable cover with breathable plug enables direct drinking while preventing spillage from pouring into separate vessels.

A radial actuation drive mechanism converts lateral finger force into axial piston rod displacement.

Segmented lockable enclosures secure the pulser and shaft to prevent tampering while allowing authorized maintenance access.

An inner cap attachment structure uses an alignment guiding projection to ensure stable engagement between the inner and outer caps.

A stopper assembly integrates a valve element and handling element to enable vacuum preservation and smooth pouring through a single unit.

An expandable plunger seal presses food below liquid levels, preventing mold growth during fermentation transport.

A liquid container uses a flared cap and multi-sided base to create a hermetic seal.

Automated apparatus manages secondary fermentation pressure to eliminate hazardous manual riddling and costly freezing processes.

Asymmetric bracket and connector prevent damage from incompatible container activation by ensuring mechanical compatibility.

A security cover uses a weakened strip to tear during removal, preventing tampering without complex sensors.

A fluid dispenser uses a flexible membrane to vary dosing chamber volume for controlled product delivery.

Redesigned dispenser valve uses movable pistons to form active seals, preventing liquid ingress that causes blockages during transport.

Segmented chassis keeps spray channel stationary while rising button indicates readiness, reducing stress on fragile components.