Closures TRIZ Cases

See how branching liquid passages and merged gas supply enable efficient foaming of particle-co

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

See how a cartridge housing uses dynamic flow cross-section—expanded for slow mixing, narrowed

See how a cap with multiple passages activated at different tilt angles enables user-controlled

See how an air-pump lid inverts suction mechanics to push liquid through a straw, enabling chil

See how a mobile member and resilient membrane enable automatic sealing and unsealing to preven

Pre-measured syrup cartridges are pierced and mixed with water to cut bottle waste and deliver consistent drinks without calibration.

A one-piece molded closure integrates the cap, chambers, and flow conduit to cut assembly steps while delivering a measured single dose.

An inclination sensor adds metered tilt dispensing to a no-touch liquid dispenser while the sealed refill-spigot interface enables clean refilling.

A rotating cap folds and pinches a flexible spout inside the cover to prevent leaks while keeping the bottle easy for children to drink from.

A rotatable cartridge meters flavor or supplements into flowing base liquid while keeping the bottle contents pure, sealed, and interchangeable.

A flexible cup, rigid collar, and sealable lid cut storage bulk while preserving insulation, leak prevention, and easy cleaning.

A single-piece elastomeric valve uses pressure-driven sealing and opening to speed dispenser drainage while limiting chemical exposure.

A thinned annular membrane lowers beverage valve opening force while preserving closure strength, air return, and production uniformity.

A two-part nested can cover opens by relative movement, then re-seals securely to prevent spillage while fitting existing can production.

Superimposed markings on a dispenser housing and cartridge create a readable code to track refills without complex lockout hardware.

A two-portion hinged valve opens with low suction yet stays sealed under container pressure to prevent leaks when inverted or shaken.

Upward intake holes, guide ribs, and lock supports help a foamer dispenser block water intrusion and stay stable under oblique pressing.

A scored utensil layer and protective laminate create a clean pop-out spoon inside the container while cutting parts and manufacturing steps.

A biased valve, hollow spigot, and annular seal let inverted refill units be replaced cleanly without leakage, even when partly full.

A hinged slit valve tightens against its connector under pressure, preventing drink-container leaks while still opening with suction.

A segmented airway and tubular guide block content backflow into the air cylinder, preserving foam quality and lowering nozzle force.

A detachable insert placed under the cap constrains pouring flow to reduce spills, conserve product, and fit multiple container types.

A side button and push rod open the sealing valve instantly, replacing lid unscrewing with one-handed drinking while keeping a reliable seal.

A push-button lid moves an external seal to open the pour aperture while keeping both pour and fill access easy to seal and clean.

Recessed elastomer inserts compress against a rod to boost end-cap retention while keeping attachment and removal easier than tight friction fits.

A movable drop-down lid seal opens the drink aperture for thorough cleaning while preserving secure sealing during use.

A hinged slit valve uses pressure to tighten its seal, preventing leaks during shaking or upside-down use while still opening by suction.

A rotatable auger and long tubular member keep mixed compositions uniform during squeezing while making dispensing more engaging for children.

A snug-fit sleeve and rotary closure keep decorative straw parts from dropping into beverages while preserving interchangeable decoration.

A spiral body with a narrow neck and low-friction coating keeps mixed compositions uniform during dispensing and helps prevent density separation.

A deflector cap splits one fluid stream into multiple directions to cover 360° surfaces while reducing awkward user rotation and mis-spray.

A flexible frusto-conical vent seal admits air during drinking while blocking liquid escape when the straw cup is tilted or inverted.

A disposable pouch and post-mix nozzle keep cold drinks at the right ratio and temperature while preventing syrup contamination and foaming.

Pre-measured dual-chamber cartridges use piercing and valve engagement to mix concentrates with water while cutting packaging waste and calibration needs.

A membrane-defined child cavity refills automatically from a parent container, enabling compact travel dispensing with less waste and spill risk.

A pressure-responsive membrane valve prevents spewing when the drinking mouth opens and helps drain residual liquid from the container bottom.

A pivoting button with elastic elements and a check-valve nozzle lets users press off-axis without sticking, damage, or fluid leakage.

An offset blade axis, baffling skirt fingers, and a lower spout improve mixing, cut blender noise, and discharge contents cleanly.

A flexible elastomer spout cover adds valve-based food flow control and cushioning to reduce spills and mouth injury on baby food pouches.

An upwardly inclined jug bottom matched to the blade profile reduces food buildup below the blades for more uniform blending and easier cleaning.

A nested sauce tray with multiple orientations creates dedicated cavities for dips and food, keeping containers secure and organized.

Integrated air and liquid vents balance container pressure during dispensing while the lid and seals provide mess-free automatic shut-off.

A pierce-and-valve cartridge mixer combines concentrate with water to cut bottle waste and avoid calibration-heavy post-mix equipment.

An integrated frangible stop flange keeps the pump piston from being removed, prevents handling damage, and eliminates separate protective caps.

A rotating upper and lower cover lets beverage cans be reopened and tightly reclosed while fitting existing filling lines and reducing spillage.

Compliant finger projections block unwanted content exit while still allowing hand or object access through an opened container mouth.

A suction-actuated diaphragm and volume control member meter beverage flow while sealing the cap to prevent spills when tipped.

An inverted refill with a spigot-opened valve and annular seal enables clean replacement at any fill level while preventing leakage.

A rotatable valve and resilient seal stop spills when a cup tips over while allowing easy disassembly for cleaning sticky residue.