Closures TRIZ Cases

Self-contained rib guides enable variable cutting kinematics, preventing polyethylene film pulling during beverage carton opening.

A drinking container lid integrates a flexible spout with a pivoting guide carriage to secure the nozzle in place.

A vacuum-indicating pull tab extends from a seal membrane to signal package integrity through physical deformation.

Oxidized aluminum oxide barrier prevents gas permeation in reference fluid bags, maintaining sensor calibration accuracy.

A mandrel displaces preparation volume in a tank to generate pressure for transporting fluid across a height difference.

A foldable box sealing machine uses a rotatable base panel to switch between horizontal and vertical positions.

An internal projection on the sealed seam creates a controlled breaking point, preventing early opening at the bending line while enabling precise product flow.

Nozzle contact grooves create a communicating space that suppresses pressure reduction loss during flexible packaging.

Thinned regions on the lid or base rupture at specific radii to prevent uncontrolled pressure releases while maintaining structural integrity.

A blow fill seal container wall features conical projections that collapse during infusion to empty the vessel without aeration.

A can lid uses a tab lever and outer bead to concentrate opening force on the score line.

A cover member employs a laminated substrate with non-foam and foam films to improve peelability without damaging high air permeability protective membranes.

A flexible container blank incorporates an integrated article handling feature to enable universal adaptability during manufacturing.

A dosing cap uses a two-part channel to meter precise drops while preventing residue leakage without extra seals.

Centering ribs on a spacer ring control cap spacing to prevent seal damage during use.

An accordion spout enables multi-angle pouring without separate tools, and a detachable base transforms the container into a funnel.

A compact venting device uses a spool to wind flexible tubing within its housing for easy transport.

A plunger seat and spacer align the sealing component for insertion into a pharmaceutical container opening.

Multi-unit storage device segments contents into independently sealed compartments to prevent air exposure and spoilage in bulk products.

A reusable silicone stopper seals beverage container openings through flexible insertion and removal.

A fluid dispenser integrates a pump with a removable grip member containing an applicator for direct surface application.

An elastic operation portion changes internal pressure in a communication space, switching valve bodies to block or allow flow for stable cosmetic dispensing.

A wine stopper integrates a vacuum pump and measurement assembly to remove air from the bottle interior.

A lid assembly with a profiled rim surface guides the closure into position, preventing jamming during package sealing.

A vented barrier cover uses a porous filter to equalize air pressure differentials across the enclosure.

A bayonet closure cap uses deformable regions to rotate and release locking ribs from container lugs.

A disposable oral receptacle with a baffle dispenses and collects flowable solutions.

A reclosable can lid uses a snap-in latching connection between plastic collar and receiving parts to maintain airtightness.

Conical pin engagement prevents annular edge chipping during repeated opening cycles.

A fluid container features an asymmetric nozzle and textured grip element for secure handling.

Planar terminal layout reduces ESR and ESL by 17-25% while simplifying manufacturing.

An ammunition can safety valve vents cook-off gas pressure by melting eutectic solder at elevated temperatures, preventing fragmentation.

A resealable lid integrates a form-fitting valve holder to evacuate internal gases and establish a vacuum seal.

A squeeze bottle dispenser uses an axially displaceable protective sleeve to block reservoir compression and prevent liquid discharge.

A separable two-film membrane covers drink can lids and rims, preventing contamination while enabling easy access to the orifice.

A medical test tube uses a lateral sampling channel to isolate the sampling hose from the supernatant during fraction removal.

A two-liquid mixing container uses a pressing pocket to combine cosmetic contents before discharge.

Pre-cut elastomeric flaps flex to create venting areas, allowing air passage and resealing to prevent vacuum impediment during liquid withdrawal.

Movable barriers in the tube plug dynamically seal the passage to prevent leakage and overflow during injection.

A fluid dispenser reservoir connects to the body via a guide rail and actuator rod, maintaining secure association during operation.

A changeable cap and cover dispenser uses distinct engagement strengths to simplify refilling operations.

A tube head insert features a dome-shaped central portion that serves as built-in positioning means for precise alignment within the neck.

A hinged cap syringe assembly pivots open with one hand to expose the sterile tip.

Radial compression ribs reduce needle insertion resistance and prevent liquid splash during withdrawal.

A single-piece tap plug integrates a tamper-preventing warranty seal into the body housing to eliminate assembly steps.

A double button cream bottle uses an elastic ring to snap-fit the cap and body for secure retention.

A multi-piece closure uses an asymmetric pull tab to detach a cover from an insert while maintaining secure frictional engagement with the container neck.

Extruded synthetic closure uses cork powder in a thermoplastic core to reduce oxygen permeability.