Closures TRIZ Cases

A transport closure laminate uses a pull-tab and weakening line to tear away the first layer.

A spray gun reservoir lid features a partial helical platform and rotatable collar for secure assembly.

Optimized Shore hardness of the resilient slit valve increases dispensing speed while reducing residue in the bag-in-bottle container.

Integrated locking tabs prevent unauthorized opening without visible damage, eliminating foreign sealing materials for sustainable disposal.

A container sealing system uses a breakable insert and shutter to secure a fluid containment bag.

An anti-suction valve with airflow recesses blocks sufficient suction by preventing a complete seal, restricting child access to fluids.

Cyano-functionalized polyimide resin raises glass transition temperature above 150°C, enabling high-energy-density capacitors.

A connector system uses a ball lock mechanism to secure a socket to a liquid container plug without manual rotation.

A trigger-type liquid sprayer accumulates fluid in a reservoir cylinder via a plunger, enabling continuous injection without repeated trigger pulls.

Cap protrusions push middle valve segments to reduce creep deformation, preventing unintended opening and spouting risks during storage.

Placing the dispensing device within the cooled space prevents excessive foaming and carbonic acid loss while maintaining drink temperature.

Rotating sleeves with internal flanges resolve dexterity and manufacturing trade-offs in child-resistant packaging.

A liquid discharge container uses a compressible shape resilient body to push contents through a one-way check valve.

A two-membrane one-way valve uses adhesive bonding to join layers without ultrasonic welding.

A one-piece enclosure cover forms overlapping surfaces using a segmented mold with a moving slide mechanism.

A valve structure uses a detachable connecting part to link the rigid portion with the bottle cap.

An inverted-L grip and hollow piston shaft in a trigger pump dispenser maintain nozzle stability while preventing hand soiling during operation.

A rotatable beverage can cover shields the drinking contact area from contamination using a segmented circular surface and curved side wall.

An annular retaining member prevents tube body deformation during two-step welding, enabling reliable sealing of multiple functional head configurations.

An elastically deformable plug resolves sticking issues by dynamically changing shape under stress, ensuring reliable flow in consumer product dispensers.

A stopper with a spiral groove directs gas along the container wall to stir solvent and increase surface area.

An integrated bellows spring design simplifies press bottle manufacturing by merging the return mechanism directly into the inner bottle structure.

A T-cork uses a partial undercut in its concentric bore to create positive axial and rotational locking between the disc component and foamable plastic stopper.

An oxygen-absorbing envelope removes internal gas to prevent oxidation without complex assembly machinery.

Differentiated double-walled nozzle withstands opening force without leakage, resolving the trade-off between ease of operation and sealing reliability.

Asymmetric spout and adapter elements ensure precise alignment for membrane piercing, preventing accidental mixing of incompatible cleaning agents.

A collapsible bag connector with a rotary valve actuated by a bayonet mechanism.

Segmented elastomeric valve and rigid retainer prevent dislodgement under pressure while eliminating product accumulation at the outlet.

An annular valve creates a check mechanism that prevents liquid backflow, maintaining aseptic conditions without complex manufacturing.

Independent shutter flaps modulate annular duct flow to prevent clogging and ensure uniform particle distribution.

A disposable paint container uses a heat-sealed film closure and rigid internal wall to simplify component handling.

Thermoplastic flip-top cap with a monolithic sealing bulge and hinged closure for controlled dispensing.

Probe directing surface guides insertion before actuation, preventing misalignment damage while the flange increases closing force against pressure.