Closures TRIZ Cases

Overmoulding merges elastic sealing body with tubular element to eliminate complex assembly steps and ensure hermetic fluid tightness.

An intermediate valve regulates viscous liquid flow between two chambers, ensuring complete dosing without direct pouring.

Rotatable dispensing part secures a hingedly connected lid, preventing accidental opening and reducing spillage during use.

A metering drum with a rotary valve controls liquid flow and ventilation paths to deliver precise doses.

Vacuum-assisted resilient deformation enables telescopic nesting of inner and outer shells for improved thermal insulation.

A liquid container converts from bottle to glass via inversion, using a detachable closure and elongated section for direct consumption.

A spray dispenser integrates light emitting diodes into the actuator to illuminate the nozzle direction during fluid ejection.

Automated imaging detects surface defects in cork stoppers to guide precise longitudinal cutting.

A foldable wing enclosure assembly locks beverage containers using a single-use adhesive tape to secure the delivery package.

A fluid dispenser tip retracts radially inward through a cam path to shield the aperture.

Atomizer sealing cover employs nested protrusions and grooves to prevent children from accessing tobacco liquid.

Segmented anchor, leash, and band components tether the lid to prevent loss while managing device complexity through universal multi-function parts.

A segmented container stopper uses independently deformable sections to allow axial penetration by sampling devices.

A dispensing closure lid incorporates a trough to collect residual product flowing down the wall.

An elastic bladder ruptures upon piercing to create a large liquid flow opening within an inhaler cartridge casing.

An external cap seals the distal end of the dispensing tube, eliminating internal clogging risks while maintaining airtightness.

An insulated air gap prevents temperature-driven viscosity changes, while the stepped nozzle stops liquid creep around the ejection port.

An elastic closing plug seals fluid pathways without needles, eliminating accidental injuries while maintaining hermetic closure.

A medical swab applicator integrates a detachable reservoir with a pincer-like gripping mechanism for direct antiseptic application.

A disposable protective cap encloses tube ends with half-shells to prevent mechanical damage and contamination.

A child resistant packaging design uses coordinated tab and aperture movements to allow adult access while maintaining safety.

Rotating third component drives axial displacement of a dispensing spout to replace pulling motions, ensuring secure sealing and easy operation.

An elastic movement limit member constrains the container door link member position, preventing mechanical rattling and improving merchantability.

Magnetic field detection replaces mechanical ball tracking to resolve inconsistent triggering angles in fuel dispensing nozzles.

Segmenting the stopper from the ring prevents cutting during pressure relief, ensuring reliable hermetic sealing.

Fine threads on the protective cap create self-locking friction that prevents tilting and maintains consistent sealing pressure.

Resilient packaging recovers from compression to suck air through an inlet, mixing it with liquid ingredients to generate foam without manual shaking.

Dual outlet channels enable continuous air intake while pouring, preventing gurgling and insect contamination in open wine bottles.

An inverted flexible pouch with a valved cap prevents liquid separation and contamination by maintaining product stability during transport.

An enclosed line-side coupling with a conical plunger prevents microbial contamination by extracting the spring from the beverage flow.

A one-handed beverage closure uses internal pressure to lock the cap and a controlled valve to vent gas.

Micro-perforations in the film layer release internal pressure during heating, resolving the contradiction between gas venting and contamination protection.

A sealing system applies and seals paper-based end closures to containers using a die assembly, mandrel, and gas evacuation mechanism.

A flip-top closure integrates a ratchet locking feature with a pressing element to release the lid.

A portable apparatus mixes flavoring agents using a dedicated dispensing unit and mixer.

A nozzle plunger diverts liquid into the reservoir during refilling.

A retaining device with a crimping flange bends to engage and secure self-closing valves.

A plastic tap uses a split cam guiding system and internal elastic valve to simplify geometry.

A composite stopper head uses elastic upper and lower parts to maintain axial contact within a bottle neck.

Optimized film hinge and belt spacing eliminates narrow mold webs, reducing manufacturing complexity and wear.

A urea solution emptying device uses a spring-loaded outer pipe and sealing plug to create a detachable liquid-tight connection.

A medication container uses a widened lower outer ridge to cover the closure cap edge, preventing unauthorized access and tampering.

A rubber plug for medical vials uses a synthetic resin film on its leg portion to prevent sticking during automated handling.

A deflection device with a bent edge mounted to an aircraft refueling pod redirects the slipstream away from the hose exit region.

Flat notch on bridge portion minimizes deflection under high torque, ensuring leak-proof sealing against impact forces.

A molded container uses 100% post-consumer recycled polyethylene terephthalate with controlled intrinsic viscosity.

A three-chamber bubble valve uses transverse and longitudinal bubbles to block or allow fluid flow through manual inflation and deflation.

A prismatic central block and handling system remove hinged closures from an injection mold.

Bonded cork particles mixed with activated carbon absorb organochlorine compounds, preventing solvent extraction and color issues in stored products.