Closures TRIZ Cases

Radial positioning lugs maintain the hinge tongue alignment during base injection molding, preventing tearing while reducing material consumption.

Curved strengthening bead distributes stress to maintain pressure resistance while lowering material costs in carbonated beverage containers.

Segmented flow paths in a tapered insert maximize the liquid-air interface, enhancing aroma without decanting equipment.

Segmented plug valves enable precise metering without adding mechanical complexity or weight to squeeze bottle caps.

A drug mixing container uses a piercing structure to tear a sealing film and release pre-measured preservation solution into the vessel.

Polyhydroxyurethane binder joins cork particles, eliminating toxic isocyanates while maintaining mechanical strength and organoleptic properties.

A golf tee dispenser uses a deflector to direct tees through a resilient retainer opening.

Twist seal mechanism prevents odor and liquid leakage while simplifying waste package loading.

A composite cork stopper design uses biosourced adhesives and natural cork washers to improve sealing integrity.

A pierceable member vents fluidic media to equalize reservoir pressure, preventing inadvertent bolus delivery and bodily fluid suction.

A wellbore protection sleeve uses an actuating element to slide over pipe ends and lock via elastic material compression.

A nozzle cap integrates a valve and porous members to produce foam from content liquid.

Two-position cap design allows seal removal before engaging child safety locks, preventing accidental locking.

Rotary gate feeder metering systems resolve manual dosing estimation errors by using plunger displacement to precisely measure extracted cream volume.

A tissue container separates sample and reagent chambers with a breakable membrane, preventing degradation during storage.

A dental material dispenser uses a breakable seal between the closure and container to capture the lid during operation.

An elastomeric suction tube narrows its cross-section under ambient pressure to maintain constant flow rate as bottle pressure drops, preventing foaming.

Folding lips over a valve flange secures the component within a closure cap, preventing contamination while maintaining reliable dispensing.

Heat-activated adhesive layers seal polypropylene woven bags at temperatures below the polymer softening point.

A vial shield with a valve element blocks the top plate opening to create a sealed space around the stopper.

A movable base portion transitions between positions to accommodate vacuum forces in lightweight PET containers.

Porous mesh channels mix air via friction while spacers maintain cavity volume, resolving cleaning complexity trade-offs in foaming applicators.

Segmented components resolve the trade-off between child resistance and manufacturing cost while maintaining reliable operation.

An extendible spout retracts into the cap to prevent fluid contamination and spillage during transfer.

Polyolefin foamed absorbing member intercepts residual ink adhering to the spring plug, preventing staining during container detachment.

A distinct intermediate layer improves adhesion between the cathode and hard coating film, preventing separation during winding.

An extendable neck adapter standardizes pour spout heights across varying liquor bottles to reduce wrist strain and improve workflow efficiency.

A closure body with a biased hinge connects a deflectable press portion to a cover portion for one-handed operation.

A flexible package uses a top gusset and safety flap to create an adult-accessible opening.

Cap engaging portion guides repair hose along its periphery, preventing damage during weight-reduced kit storage.

A spring valve mechanism seals an ink outlet during non-replenishment and opens to allow flow when needed.

Segmentation and intermediary principles enable a tamper-proof retainer that prevents battery theft at retail without damaging cells.

A deflectable dosing chamber wall creates auxiliary volume to introduce a second medium without liquid escape, enabling variable mixing ratio adjustment.

Integrally molded check valve with downstream urging member ensures smooth outflow.

Segmented blow-fill-seal containers eliminate contamination and overdosing risks while ensuring complete dose evacuation.

A dual receptacle button system controls two independent valves to dispense products from a divided bottle.

Segmented tanks and check valves reduce lifting effort during installation while preventing fluid spillage through self-regulating flow control.

A medication delivery apparatus with a physically coupled container and delivery device, featuring a fluid passageway for transferring liquid medication.

Rounded lug surfaces reduce sliding friction to ease operation while maintaining child-resistance.

An asymmetric dispensing orifice directs powder flow away from the hinge mechanism, preventing mechanical malfunction and material waste during lid cycles.

Symmetrical parallelogram folds enable vertical crushing without twisting, preventing air entry into the sealed interior.

A snap-fit closure cap secures an elastomeric seal to a medicament container outlet.

A nested mixing apparatus uses a compressible container to release concentrated chemicals into a diluent reservoir.

A dispenser beverage container uses a button member to discharge target material from a replaceable cartridge into the main body.

Concentric threaded sections interface with a planar rim to prevent confectionery leakage and hardening.

A converting substrate with plated anode and cathode fillet forming portions stabilizes solder joint geometry.

Radially expandable peripheral walls allow easy insertion of a sealing member into a stopper while preventing removal during fluid discharge.

A beverage pouch fitment uses alignment tabs and notches to secure mounting within the pouch opening.

A one-piece dispensing closure features a measuring reservoir that retains a predetermined dose of flowable product upon container release.