Closures TRIZ Cases

Capless filler neck closure uses an interface sleeve to secure engagement with the fuel tank filler neck.

A closed fluid delivery adapter connects a sealed bottle to a container via a puncturing structure and removable collar.

A rotatable vent cap snaps into a molded retainer to align with a recessed punch-out area for controlled air intake during pouring.

A titanium lid assembly with a glass-to-metal seal and flowable insulative liquid sealant coats the inner surfaces to prevent electrolyte contact.

An eye drop dispenser assembly integrates a positioning cup with a sealed nipple for precise fluid delivery.

A fuel tank cover member uses a non-contiguous tubular portion and rib to reduce stress concentration at the base.

A pharmaceutical closure system uses interlocking driving structures to enable child-proof operation via a specialized key.

An integrated stopper prevents ambient air contamination during multidose withdrawal, eliminating the need for chemical preservatives in sensitive formulations.

Elastomer-filled channels in cork stoppers resolve the contradiction between manufacturing homogeneity and consistent gas permeability values.

A thermoplastic ampoule neck integrates a tapered female connector with an inwardly extending sealing flange and external lugs.

A fluid container uses a flexible flap portion to manage liquid handling and extraction.

A dynamic control switch seals the liquid outlet when idle, preventing accidental child ingestion while allowing intentional refilling via a button press.

Segmented rod geometry and mechanical stops resolve volume control precision trade-offs against device complexity.

A retort food container uses a closed-curve ridge and exhaust hole to enable automatic lid film peeling via steam pressure.

An asymmetrical D-shaped safety cap decouples clamping walls via a slot to accommodate variable diameter tool shafts without friction or particle entrainment.

A welded sealing arrangement joins elastomer material directly to a container cap surface using thermal bonding.

Closure reservoirs maintain vapor pressure equilibrium to prevent evaporation losses while enabling automated container handling.

A recessed dispensing orifice with a positioning saddle aligns the nozzle over the eye for one-handed operation.

Segmented elastic flap and self-service latch unlock drawer, balancing child safety with simple operation.

An elastic sleeve enables quick axial mounting and rotational disassembly of a pump, resolving the trade-off between secure fixing and easy recycling.

A flexible electrolytic capacitor uses a porous carbon nanotube film electrode to deliver stable electric conductivity and low internal resistance.

An oval tube head integrates an eccentric outgrowth to align packaging, reducing plastic waste from separate components.

A flexible film container uses a rigid insert to enable efficient stacking while reducing material costs and environmental impact.

Disposable spittoons employ segmented lids and internal baffles to prevent spills while maintaining simple manufacturing.

An integrated process uses electron beam irradiation through the container opening to achieve Log 6 sterility without chemical residues.

Multiple apertures in a liquid container segment pouring and venting functions to resolve flow friction and foam formation during dispensing.

Integrating a retractable dispensing system between panels minimizes container height while preventing unintended fluid spills during handling.

A one-way valve uses an elastic body with cuts that open under pressure to discharge liquid, reducing production costs and structural complexity.

A screw cap features a sealed cover adhered to the pierceable projection for easy manual removal.

A resin-coated columnar cork stopper stabilizes openability through controlled compression stress and thermal expansion.

Segmented elastomeric sealing zones increase retraction force without raising insertion force, preventing accidental removal of the hollow spike.

A liquid replenishment nozzle uses a parallel second flow path to increase fluid throughput.

A liquid container protection member uses strategically placed engaging parts to align with contact components on the container body.

A one-piece child-resistant closure integrates inner and outer members to simplify opening for adults.

Segmented orifices equalize internal pressure to eliminate glug-glug effects and redirect spillage back into the effluent stream.

Replacing steel with flexible polyvinyl reduces rack door weight and manufacturing costs while maintaining structural integrity.

Nested cylinder ventilation openings balance atmospheric pressure to maintain consistent paint flow and eliminate vacuum-induced spray pattern changes.

Projections on tier sheets channel spouts and distribute weight across stacked containers, reducing manual labor and improving packing density.

Integrated vents equalize pressure in flexible containers, allowing walls to deform and recover without rigid support structures.

A thermoplastic elastomer composition blends non-crosslinked styrenic block copolymers, mineral oil, and polyethylene to create synthetic wine corks.

A child-resistant container uses a nested lid and threaded body to secure contents.

A dispensing closure features a push-button region that transitions from convex to concave upon actuation.

A flip-top dispensing closure uses a self-closing valve to seal the dispensing passage when the syringe is withdrawn.

A ribbed thermoplastic support element absorbs tensile forces within a fuel tank while securing internal fittings through flexible deformation.

Ultrasonic vibration creates stable droplet spacing, preventing uniting and eliminating complex airflow systems.

An offset C-shaped vent groove releases pressurized gases from an alkaline battery can end wall.

A solid electrolytic capacitor uses a vent path between packaging resin and substrate to allow controlled water vapor entry.

A resin composite inner plug for eye drop containers combines cyclic olefin copolymer and polyethylene to form a functional nozzle structure.