Closures TRIZ Cases

Integrated exhaust and releasing channels in the cover manage internal air pressure, eliminating separate coupling devices for sealing.

Merged silicone leaflets and plastic base into one piece, resolving manufacturing complexity while maintaining effective sealing against oil drips.

A fluid dispenser integrates a flexible pocket with an inlet sleeve to secure the dispensing valve through snap-fit engagement.

Segmented bayonet fittings allow thorough cleaning of the dispensing assembly while the elastic membrane automatically closes to prevent bacterial buildup.

Segmentation and merging resolve closure tightness versus complexity in pumps dispensing air-sensitive liquids.

A push-pull closure anchors the mouthpiece via a locking portion and resilient web to prevent accidental detachment.

Radial inward movement of the latch arm releases locking tabs without direct finger contact, preventing accidental opening and discomfort.

An HDPE-based multi-layer insert protects products from contamination while color differentiation aids accurate positioning during assembly.

Offset axis and non-uniform contact force distribution lower opening pressure while maintaining sealing reliability.

A container body features a shoulder recess that houses a diverging pouring spout to minimize external footprint.

An intermediary dam intercepts liquid leaking through a closed check valve, preventing air lock in highly percolative eye liquids.

Perforated enclosure walls route hot gas through one-way valves into cavities where thermal masses absorb heat before release.

A fluid dispensing device uses a staging reservoir and controllable valve body to measure and deliver precise fluid volumes.

A hollow spout cap uses a partition wall to separate air and liquid channels, enabling a single valve stem to control flow without cross-contamination.

A liquid metering assembly uses a segmented valve system to control dispensed volume through adjustable diaphragm positioning.

Vent passageways in hermetically sealed cartons relieve altitude pressure differentials, preventing rupture and maintaining barrier integrity.

Segregated air and liquid ducts in a vented spout enable controlled pouring while the integral biasing valve prevents accidental opening by children.

Apertures in the sidewall create a compression region that stores potential energy to secure the cap.

A multilayer welding promoting element connects a container lid to a closing element using induction heating and heat-sealable plastic layers.

A hinged lid closure uses a rear support area for finger placement to apply counteracting force during opening.

Elastic locking tab engages rear slot to secure tray within sleeve, preventing accidental separation during transport.

A dispensing closure valve assembly uses injection-molded thermoplastic components to manage fluid flow without elastomers or discrete springs.

Short stroke pump mounted on a plate support with a ring button member maximizes content space by enabling discharge from any part of the discharge plate.

A laminated polymer film end closure liner bonds directly to metal container ends without spray application.

Dual lead threads with different pitches prevent loosening from vibration and creep, ensuring secure engagement with various dispensing adapters.

A disposable assembly integrates separate component storage with a secure mounting projection for direct spray tool attachment.

A dosing device injects inert gas to form a protective barrier layer around oxygen-sensitive items.

A liquid dispenser uses a bottom-activated valve to control flow through an elongated tube system.

Segmented cork design uses a pull cord to unwind the stopper, resolving the trade-off between traditional sealing and difficult manual removal.

A container adaptor uses a segmented bung and disposable pipettes to create independent fluid pathways.

A valve carrier ring uses an injection molded radial protrusion to secure the retaining portion of a dispensing valve.

Rotating a refill tab into an undercut cavity locks the cosmetic vessel, resolving manufacturing constraints that limit reliable locking in glass pots.

An integrated injection molded closure assembly prevents leakage and contamination while enabling single-material recycling.

A handheld dispensing system uses a rotating actuation member to reduce required operating force.

Underside mounting via a U-shaped channel secures the pleated spout, preventing spills while allowing full height extension.

An integrated drink spout uses a flexure hinge to pivot a sealing lid, eliminating separate straw disposal and contamination risks.

An integrated cap cavity measures liquid volume precisely without adding external measuring devices or increasing system complexity.

A dispensing closure features a domed deck and concave channel to direct moisture flow away from the hinge mechanism.

Linear ridges on a collapsible baby bottle body compress to expel trapped air, resolving safety hazards from rigid structures while preventing formula lumps.

An elastomeric dome slides a valve member against a seal to block oxygen transmission and prevent post-closure dripping.

A closure cap uses a relief to snap-fit into a housing, preventing accidental removal during automated mounting.

Nested containers and a detachable head assembly enable inner container replacement, reducing packaging waste while maintaining reliable connection stability.

A collapsible bag fitment uses a duckbill seal and removable probe to enable quick fluid connection.

Tapered through-holes and fluid ports enable leak-proof liquid flow from the container into the bristles, preventing damage during removal.

A container with a folded-back bottom wall transforms to direct residual liquid into a retaining part.

Elastomeric straps link the jacket and cap, enabling easy re-attachment while preventing accidental loss.

Contiguous lead-in and circumferential tear lines define a precise tearing path on the sealing foil.

A rotatable disc closure aligns internal flow channels with a central post to select specific discharge openings.

Spiral winding of treated cork leaves eliminates red powders and synthetic adhesives while ensuring complete internal sterilization.

Segmented liquid channels adapt to container tilt, preventing uncontrolled jets and ensuring effective pouring regardless of user grip.