Closures TRIZ Cases

Curved spout lip intercepts droplets to prevent staining while maintaining smooth pouring flow.

Segmented finish notches on plastic beverage containers facilitate controlled pressure release, reducing foaming and enabling higher CO2 content.

Segmented flow paths and intermediary sealing resolve visibility versus control trade-offs.

Composite plastic film resists heat-induced waviness and enables cannula gas injection to extend food shelf life.

A pressure relief cap integrates a two-way valve and manual actuator for selective venting control.

Micro-perforated heat-shrink plastic seals over well caps to prevent pest entry and provide tamper evidence without requiring keys.

An extendible spout within a rigid fitment prevents spillage from grip pressure on flexible containers, eliminating the need for separate transfer devices.

Porous wicking material controls oil-based fluid migration and enables precise dosage delivery via threshold pressure.

A hand-held dispenser uses an elastic button valve to seal the dispensing opening, resolving complexity trade-offs while enabling controlled variable flow.

A rupture-resistant container uses a gas permeable shell to release decomposition by-products while maintaining structural integrity.

A spout stopper integrates a breakable sealed partition and detachable cap with pull ring for simple unsealing.

Nested coaxial casings enable axial movement to prevent child access while allowing adult operation and residual liquid evaporation.

A filtering discharge container uses a pressure-actuated plug to prevent leakage before first use.

A disposable fluid reservoir uses a sealed edge with a releasable opening means to enable controlled liquid dispensing.

Attachment ribs with double-wedge shapes and elevated ridges ensure complete sealing on uneven container surfaces.

A plastically deformable retaining element absorbs kinetic energy from ejecting bottle caps.

Chloroprene rubber with a conductivity agent solves processability issues while an isocyanate impregnation prevents photoconductor damage.

A curved knife-edge cutter rides along packaging walls to execute clean cuts through laminate structures.

A trigger pump sprayer uses a precompression piston to deliver consistent liquid dispensing despite partial or slow trigger strokes.

Pre-compressing a thermoplastic elastomer plug during injection molding prevents residual distortion that causes leakage in infusion bottle caps.

Removable lid acts as a pull handle to draw the cleaning tool through the barrel, keeping user hands clean from debris.

Axial entry-exit grooves guide studs through rotary and linear paths, resolving child resistance versus adult dexterity.

A break-off cover protects the convex sealing element from contamination until use, preventing residual disinfectant issues.

Mechanical interlocking between lid fitment projections and package tucks eliminates adhesive contamination risks while maintaining reliable resealability.

A hinged container cap uses a recessed elastomeric pad to enhance grip stability.

A child-resistant packaging system uses a push button depressor to unlock flexible and fixed lugs for easy access.

A shape memory polymer seal maintains containment at normal temperatures and reverts to its memory shape to vent pressurized containers.

An injection molded lid embeds a filter medium to eliminate assembly steps and reduce production costs for spray gun containers.

Actuating rod with elongated lateral outlets modulates fluid pressure drop to produce variable spray profiles.

A sealed thermal body regulates wine temperature while an integrated aerator mixes air into the fluid during dispensing.

Radial medium flow evacuates air bubbles from the pressure chamber, ensuring controlled discharge and eliminating sudden ejection in compact cosmetic tubes.

An annealing process shrinks the molded portion to fit the film, easing removal from the mold.

A pump dispenser nozzle head features a protrusion in the joining portion between vertical and lateral passages.

Frozen foam immobilizes protruding tubing within a shell, preventing mechanical damage without increasing container volume.

Temperature-dependent adhesive bonds maintain seal integrity during heating while enabling easy manual peeling after cooling.

Segmented rubber jointing ring with air escape grooves prevents liquid leakage while resolving lid sticking caused by trapped internal pressure.

Short air tubes extending less than twenty-five percent of the bottle length equalize pressure to prevent glugging while minimizing material usage.

Housing the spring in a tube reduces material costs and prevents liquid contamination from direct contact.

A vented container for viscous liquids uses a modified inner surface to reduce adhesion, while a cap vent equalizes pressure to prevent trapped air bubbles.

Flavored plastic nasal dispensers mask odors from gamma irradiation and materials, improving user comfort while maintaining regulatory compliance.

Segmenting the dispenser head into two fitted members resolves the trade-off between manufacturing simplicity and dispensing capacity.

A dispensing closure uses a double-valve diaphragm to manage fluid and air flow within compact containers.

Segmented vertical and lateral motions reduce opening force for seniors while maintaining child safety through dynamic tab engagement.

An integrated integrity element pivots upon initial opening to prevent loose parts and simplify assembly.

A filling assembly holds a pipette inside a container to enable simultaneous fluid dispensing.

A sealed diffusion portion prevents microbial contamination and waste by blocking air contact while regulating cosmetic supply through a mediator plate.

Outer and inner cap assembly secures vaporizer cartridge access.

A fitment assembly incorporates a pressure relief mechanism to vent fluid from an isolated chamber within the container passageway.

A solid electrolytic capacitor uses dopant impregnation to form a uniform semiconductor layer on the dielectric surface.