Closures TRIZ Cases

A micro drop adapter attaches to standard eye dropper bottles, featuring an internal sheath that seals around the original tip.

A flexible conduit sleeve integrates a detachable end cap to shield threaded pipe ends during installation.

An extendable wand sprayer uses a secure locking mechanism to prevent inadvertent actuation during shipping.

An elastomeric hinge and locking protrusion system prevents leakage under 70N impact forces while enabling effortless single-handed opening.

Rotating flange mechanism pierces container walls for resealable dispensing of granular materials.

A box-shaped package uses a perforation aligned with a recess in the contained solid food item to facilitate piercing.

A spiral-grooved container body uses a rotating cutting cap to trim the side wall as contents are removed.

A cam lifting handle converts linear pressing into rotational clamping on a paint mixing cover.

A dual-chamber beverage container uses a split cap assembly to dispense multiple drinks from one unit.

A dispensing closure uses a measuring reservoir and piston valve to deliver precise product doses.

Nesting the suction tube inside the cover prevents external contact and damage while maintaining complete liquid extraction from the inner paper container.

An elastic retainer uses slip and interference fits to keep caps attached, preventing loss.

A drug vial cover features a geometrically shaped port that restricts syringe access to compatible devices only.

Composite closure resolves leakage and contamination by combining foam compression with dense barrier layers.

Segmented container seal uses partial opening tabs and guide bands to enable controlled access while maintaining sealing reliability against moisture ingress.

Molten plastic pierces a prelaminated hole to form a pouring spout while a heat-sealable cover portion seals the underlying gas-barrier layer.

Segmented venting grooves admit air to counteract underpressure, enabling gravity-driven drainage of trapped liquid without turning the container.

A connector assembly with a pressure port and locking mechanism drives fluid flow through a liner-based container.

A child-resistant package uses a tray and case with locking protrusions to form a mechanical stop.

Unified aluminum lid bonding eliminates galvanic corrosion risks while maintaining helium permeability below 10-7 cc/second for reliable sealing.

An offset hinge axis repositions the rotation point relative to the parting plane, altering the lid's closing trajectory.

A chlorinated rubber composition uses metal deactivators and antioxidants to prevent zinc-induced degradation in high-pressure hoses.

An animal supplement container employs an aperture bridge structure to separate excess coating from treated food, recovering waste for reuse.

Segmented grooves merge insertion guidance with self-locking engagement, resolving assembly complexity while maintaining connection reliability.

A decanter stopper with a flexible seal creates pressure changes to extract flavors, overcoming the slow aging time of traditional barrels.

A resilient sleeve encloses an insert with interlocking tabs that bow outward under pressure to release the contents.

A single-piece hinged closure plug seals edible oil containers while maintaining a low profile for efficient vertical stacking.

Segmentation and intermediary walls prevent liquid nitrogen infiltration while enabling aseptic retrieval of biological samples.

Curved inclined surfaces on the operation lever minimize spring member fatigue by reducing deformation amplitude during wide-angle spraying.

Segmented apertures prevent flame ingress while a gathering manifold ensures splash-free fuel delivery, resolving the trade-off between safety and flow rate.

A single-piece IML tube uses a locking plug to adjust dispensing, resolving brittleness issues in multi-material containers.

A fixed quantity discharge device uses a check valve and piston to guide liquid contents into the pipette pipe.

A mechanical dispenser power assembly uses a spring-loaded piston to pressurize product in a pump chamber.

A single-wall closure uses a compressible main body to deform catch pawls for controlled dispensing.

Spring-loaded inserts wipe dispenser nozzles during capping, removing media residues and preventing germ formation at the discharge opening.

Segmented cork pieces bonded by an impermeable sheet prevent liquid diffusion and adhesive migration into container contents.

An adapter assembly penetrates a collection vessel septum to permit gaseous communication with a sensor while maintaining a sterile environment.

A closure assembly pierces and removes container membranes using directional plows.

A cosmetic applicator uses piston sliding to create a vacuum seal that draws fluid into the nozzle during removal.

A slidable cap assembly actuates over a tubular fitment to manage product flow through integrated openings.

A Bartop cork stopper seals still wine bottles with a 0.9 to 1.7 mm diameter interference fit.

A coupling assembly with moveable engagement elements connects a dispenser to a reservoir.

A spring-resetting pump mechanism replaces manual bulb squeezing to deliver consistent liquid doses while preventing product adherence on the tube exterior.