Closures TRIZ Cases

See how a straw with an internal one-way valve and grommet seal enables children to drink witho

See how a rotatable cap with recessed air vents maintains pressure balance during pouring, enab

See how a ledge-supported filter assembly with cap-integrated cylinder and one-way valve enable

See how a three-seal valve design isolates vent and drink passages to prevent leaks while enabl

See how a portable water dispenser heats to sanitizing temperatures above 130°F while using a l

See how a nested agitator with gasket containment resolves the contradiction between portable s

See how a bistable control device and handle-mounted button enable one-handed pouring shutter c

See how a clamping flange and sealing disc with labyrinth air passages eliminate alignment step

See how asymmetric guide grooves and projections ensure correct cartridge orientation, prevent

See how a closure-integrated pressure-relief device vents excess pressure before rupture, enabl

See how a fillable PCM bladder eliminates pre-conditioned gel packs in cold-chain shippers, red

See how an elastically expandable cylinder wall seals against a larger-diameter piston, elimina

See how a two-part drinking rim and elastic sealing disk with air inlet passages simplify assem

See how a PET single-serve cup with flared base and integrated cavity solves outdoor tipping an

See how a segmented valve assembly with distinct drink and shower outlets resolves flow-rate ad

See how a plunger-based cartridge discharge transfers beverage substance into a separate mixing

See how a clamped elastic sealing disc with stiffening ribs and air inlet passages prevents chi

See how a dispersing disk and conical splashguard direct carbonated beverages in laminar flow t

See how a pivoting spout integrated into the container wall serves as both seal and measuring c

See how a segmented conduit with exterior and interior sections prevents dirty dish-brush impur

See how a dispenser with a tubular member extending 150% of body height uses tortuous flow path

See how a flexible membrane seal enables drinking from any cup location while preventing leaks

See how top and bottom valve assemblies with a flexibly invertible dish enable selective fluid

See how a compressible cavity and nozzle integrated into a phone case enable portable hand sani

See how a resilient cup-shaped valve deforms under suction to enable fluid flow yet maintains f

See how a projection-groove mating member with dimensional spacing from the hinge section maint

See how a fitment assembly with chamber isolation and pressure relief venting prevents vacuum d

See how a flexible, elastic lid stretches to fit multiple container sizes while maintaining a s

See how adaptive pump cycles and sensor-based detection prevent foam soap liquefaction in hands

See how a resilient cup-shaped valve merges sealing and suction response into one cleanable par

See how a segmented sealing cap with mechanical engagement units and flexible members prevents

See how an elastomeric lid with a hollow pocket and aperture captures straws and prevents spill

See how a unitary compliant sealing valve merges spring, shaft seal, and cap seal sections into

See how a disposable pouch system with post-mixing nozzle prevents syrup re-coagulation and fla

See how pressure-rupturable cartridges and external mixing chambers prevent syrup re-coagulatio

See how a tilting outer valve and resilient stem overcome negative pressure in collapsible cont

See how an offset hinged dispensing cap with flexible lobes and oblique brace wall reduces wipe

See how a movable closure body within a seat structure enables easy suction conduit insertion w

See how a frame with collar and body engagement portions prevents container rotation during dis

See how a paper-based inner container with thermoplastic laminate and tearable suction port ena

See how a mobile trailer with secure openings, cart integration, and accumulator-powered coolin

See how a soft elastic diaphragm replaces slit valves in drinking vessels, opening under suctio

See how a movable piercing spike and separate mixing chamber prevent fluid supply contamination

See how tessellating codes embedded in container flange recesses encode multi-phase preparation

See how telescopic support arms enable nested storage of multiple container sizes in a single u

See how a movable piston transfers beverage substance into a separate mixing chamber, bypassing

See how sector-shaped flow restrictors guide liquid longer near the spout edge to reduce turbul

See how a tubular plug valve with slit-web structure reduces vacuum pressure for child use whil

See how projections shred and press food particles to extract interior flavors, increasing surf

A tapered base with a 2-4 mm curvature radius suppresses needle coring while keeping the rubber stopper stable and low-cost.

A segmented package opening closure improves membrane adhesion and rupture while simplifying molding on multilayer pourable-product packs.

A one-way silicone lid lets fermentation gas escape while blocking oxygen, turning mason jars into airtight small-batch fermenters.

Surface-active compounds in a polymer closure lower adhesion so retained liquid drains back into the container, reducing spillage and residue.

A gasketed nozzle attachment lets children consume food tubes with less mess while sealing the opening for reliable storage later.

A skin detector and PLC adjust cosmetic base-material ratios in one package, replacing multiple bottles with personalized mixing and dispensing.

A styrene block copolymer and olefin resin blend keeps vial caps flexible and non-brittle at −85°C for easier removal and cleaner storage.

A notched, foldable corner structure adapts to load corners to prevent collapse and preserve stacked-load integrity during transport.

Automatic data exchange between a drone and transport container removes manual destination entry and improves delivery security.

Discrete snap-fit engagement improves rotary lid feel, prevents loosening from wear, and keeps the opening fixed for easier article access.

A spaced induction heating ring and isolated RFID layer preserve wireless read range while reducing sealing heat spread, waste, and tampering risk.

Engagement tabs and folding lines let a fully paperboard detergent pod container meet child-resistant reclosure needs without plastic waste.

A screw-driven piston and guide mechanism dispenses cosmetics hygienically while maintaining sealing, preventing leakage, oxidation, and waste.

Pre-tensioned resilient arms keep a pouch spout valve reliably closed while separate molding cuts mold complexity and production cost.

An asymmetric communication port and moving valve reduce air-path stagnation, enabling smoother ink transfer between bottle and tank.

A ribbed locking tab and spout protrusion keep a hinged container cap open without raising opening force, enabling easier one-handed use.

A covered strip-fastener layout moves the seal away from the fill path, improving bag filling speed while keeping harmful contents child resistant.

A pretensioned septum with conical sealing surfaces cuts dead volume and material use while maintaining tight medication container closure.

By embedding the overlapped sheet edge within the tube wall, the weld gains length and disperses peeling stress for stronger seams.

A removable spout cap with interchangeable mesh filters enables quick fuel filtration, easy replacement, and cleaner pouring into tanks.

A circumferential neck channel and flow guide redirect residual wine and hold droplets to prevent drips across changing pouring angles.

An inner-tube reservoir valve uses vertical elastic deformation to improve trigger sprayer sealing, reduce leaks, and simplify assembly.

A spring-biased button and geared rotating closure open only for applicator extraction, then reseal to prevent drying, gas loss, and leakage.

A spring-loaded cage applies predefined stopper pressure to keep container seals tight despite manufacturing tolerances and avoid stopper damage.

A twin-locking inner and outer cap uses push-and-turn ratchets and teeth to keep child resistance high while simplifying opening and assembly.

A glass inner tube inside a shatter-resistant outer body preserves sample purity, prevents leakage, and reduces breakage risk.

A bayonet-linked rotating interface keeps the receptacle stationary, preventing spillage while maintaining a sealed transfer connection.

Friction and septum elongation decontaminate the injection member during filling, enabling sterile chamber transfer without cleanrooms.

Integrated cleaning-solution dispensing improves mouth guard hygiene while a squeeze guard helps prevent accidental discharge.

A pressurized canister and guided delivery conduit let one user clean GDI intake valves effectively without professional service.

Asymmetrical communication ports and an axial valve prevent air stagnation in compact ink refill containers, improving liquid transfer.

Segmented bladder sections with weakened portions improve force conversion, reduce pressing effort, and restore pump resilience for complete discharge.

A biased pivoting spout opens for controlled dispensing, then closes automatically to block leakage, air entry, and residue.

A conical blocking element and inner flange enable precise single-drop dispensing while limiting air entry and avoiding complex dispenser structures.

A frangible ampoule, spacer, and filter enable one-handed release of small cyanoacrylate volumes while blocking shards and limiting waste.

A polypropylene lid with a flexible coupling wall and angled closure well improves paint package sealing while reducing leak risk and lid complexity.

Ventilation apertures built into the collar keep air flowing for residual product drying while limiting dust fallout on the dispensing head.

Angled sliding compartments and integrated locking improve tool access while keeping modular storage units secure during transport.

Push-and-turn closure and base locking prevent child access to topical medication while keeping adult use intuitive and low cost.

A releasable spout and set screw let hidden lid recesses be cleaned thoroughly while keeping the flip-straw stable during use.

A synchronized button, connector, and sealing structure lets this container lid disassemble easily while maintaining reliable sealing and fluid control.

A segmented flow regulator and retractable brush assembly prevent paste leakage, reduce contamination, and improve skin cleaning and storage.

A push-actuated sealing element breaks inside the closure to enable clean dispensing while reducing injury risk, waste, and leakage.

An eccentric flow-control seat and retractable brush reduce paste buildup, leakage, bacterial growth, and brush contamination.

Opposed gripping walls pre-orient a tethered lid on the application device, reducing spout and package damage during coupling.

A tethered lid and telescopic valve create a hermetically closed chamber that blocks contamination and keeps the cap attached to the bottle.

A handle-linked spout mechanism speeds one-handed opening and closing while reducing leakage and avoiding bulky lid structures.

A resilient coupler hinge lets drinking lid parts separate for cleaning while preserving secure open and closed locking.

A movable ring and separable lid structure improve sealing, speed open-close switching, and allow easy disassembly for cleaning.