Closures TRIZ Cases

Dome-shaped throttle insert restricts liquid flow within a dispensing nozzle channel to ensure consistent droplet formation.

Separating the flowrate-reducer from the valve solves manufacturing precision issues for viscous liquids.

A movable outlet part seals a bypass passage to control fluid flow in containers.

Pre-formed perforations in a synthetic resin lid allow easy straw puncture while maintaining impact resistance and enabling unified disposal.

Snap-fit design eliminates talc lubricant contamination during assembly while maintaining fluid-tight sealing integrity.

Segmented positioning members detach from storage container grooves to prevent panel corners from sticking during removal.

A pull strap breaks a frangible seal to open the closure flap of a life vest stowage device.

A container valve membrane seals through a peripheral linear contact line that transfers pressure to restrict retrocontamination.

Mechanical anchoring means secure an incompatible hinged cap to a dispensing head during overmolding, resolving connection strength issues.

A dual chamber dispenser breaks an inner cap via a compliant outer shell, preventing glass shards during product release.

A polyepoxide binder joins cork particles to maintain organoleptic properties while improving elasticity and gas tightness.

A shippable data transfer device uses an anti-tamper casing with reactive chemicals to detect physical breaches during transit.

An elastically deformable cap wall seals fluid tanks against air and contaminants by breaking sealed contact under product pressure.

A rigid support structure secures an absorbent pad within a protective cap, preventing particle generation during assembly.

A container closure pivots a dispensing flap via a sliding interface, preventing accidental opening.

An inverted closure prevents accidental leakage during transport while maintaining easy access for pouring.

Elastic conical valves eliminate sliding pistons to prevent retrocontamination in airless distribution systems.

A dual-chamber dispenser uses a rotating selector to switch flow paths between filling and dispensing modes.

Contoured sides and an asymmetrical closure provide tactile orientation cues, eliminating visual assessment for offset orifices.

A bottle device uses a switch linkage to rotate a disc cover, resolving the trade-off between ease of operation and sealing reliability.

An air reservoir in the dispensing head prevents spontaneous flow through the microporous pad, eliminating liquid waste during storage.

Segmented transfer members use external grooves to equalize pressure, preventing flow discontinuity and fraudulent filling during liquid transfer.

Embossed distance elements create imprints on a packaging tear membrane to improve pull-tab visibility.

A chitosan-based nanoporous biofilm retains tannins and TCA within cork, resolving food safety conflicts with paraffin coatings.

A dispenser container uses a rotating body to control the button member, enabling intentional content discharge through mechanical linkage.

Inner surface asperities gently aerate liquid during pouring, enhancing aroma development without causing excessive bubbles or stirring.

A slit valve employs permanently deformed film material to maintain reliable sealing under pressure differentials, preventing leakage in inverted containers.

Flush seal surfaces reduce contamination risks while maintaining fluid-tightness for easier disinfection.

A flow control closure uses a spout orifice with uvulas to direct product dispensing while resolving complexity trade-offs through integrated molding.

A hinged closure overcap angles at 125 to 145 degrees to direct liquid flow into the cup instead of onto the bottle base.

A tubular closure component with ribs connects to machinery fluid containers for controlled pouring.

A lid-spout assembly uses an interaction assembly to control the hinge element between closed and open configurations.

A dual container device uses a track and guide mechanism to couple compartments for sequential beverage access.

Rotatable handle supports an inclined box body to provide clear visibility of stored hand tools while a locking structure prevents unauthorized cover removal.

Asymmetric interlocking members in a resealable container prevent child access by requiring specific rotation, resolving safety and complexity trade-offs.

A mixing container uses protruding portions to pierce a sealing member upon connection, enabling rapid reagent transfer without rotation.

A hinged protective cap with a helical locator plate guides automatic alignment on dispensers for secure single-handed operation.

Polycarbonate stopper with elastomeric O-rings and a central partitioned volute-cavity prevents TCA contamination while enabling easy cork-screw extraction.

Compressed expansion hoops lock an anti-crush ring against a thermoplastic turbo duct inner surface, preventing material creep at elevated temperatures.

Prefabricated holes in the capsule body and cap ensure consistent hole geometry, eliminating piercing device wear and material deposits.

A dual-chamber dispensing assembly uses a secondary piston to draw and dispense exact fluid volumes.

Nested compensation containers expand and contract to absorb pressure fluctuations, preventing structural deformation while preserving usable tank volume.

A monolithic plastic container uses a hinged bottom wall to deform elastically, resolving pressure differentials without compromising lateral stability.

A sliding button mechanism opens and closes a cosmetic pump nozzle without detaching a separate lid.

Adjusting member switches elastic strip between relaxed and preloaded states to prevent yielding deformation during long-term storage.

An automatic locking element transitions a flip-top cap from locked to unlocked via rotation, preventing accidental child access.

Co-molding the closure and one-way valve into a single unit eliminates separate assembly steps, reducing manufacturing complexity and sterilization costs.

Nested containers use a masking liquid to hide alcoholic beverages from detection while maintaining a secure seal.