Closures TRIZ Cases

Cone breaking point seals medical spikes without rubber washers, eliminating sealing complexity while maintaining sterility.

An elastic band secures a tubular plug in damaged manifold ports, preventing debris re-entry while keeping the filter system operational.

Bonded multi-layer film on synthetic stopper prevents cork taint and leakage, preserving wine quality during storage.

An elastic resilient element holds the valve open during use and applies pressure to seal the drinking aperture, preventing carbon dioxide escape.

A pump dispensing container uses a buoyant resin ball valve to open a primary check valve when the liquid chamber is full.

A closure cap uses a detachable flow restriction member to manage product dispensing from container spouts.

A beverage container uses an internal bag connected to a rigid keg via through holes for air escape during dispensing.

A tubular container uses a thin flexible film trunk and plate spout to allow smooth content discharge.

Replacing gravity dependence, the pneumatic system maintains dosing accuracy across tilt angles while minimizing operator fatigue.

Asymmetric engagement elements with steep back angles secure the closure against accidental removal while allowing controlled hinged access.

A separable plunger head inside a sample tube cap reciprocates to mix fluid contents, resolving poor dispersion in small containers.

A reclosable pressure vessel lid uses plastic deformation of the closure means to match elastic recovery of the lid surface.

A beverage container valve uses a sloping inner neck surface to direct foam toward the opening for controlled dispensing.

A fluid container cap uses a movable restrictor to adjust internal flow paths and enable connection to various dispensing systems.

Segmented graspable loops break along thin sections to prevent unauthorized access while allowing intended users easy opening.

A collapsible container uses a thin wall portion to enable conversion between flattened and expanded states.

A deformable slider lifts a contact lens from its sealed blister well, preventing finger contamination during removal.

A rotating valve mechanism separates and mixes two liquids within a single housing.

A rotating bowl scraper slides along the roof inner surface to remove adhered dough, preventing contamination from solidified residues falling into the batch.

A fitment dispersion member alters flow characteristics to ensure smooth dispensing.

A movable valve assembly controls toner flow using air pressure differentials and gravity.

Dual reed valves in a dispenser insert seal the outlet to stop vapor leaks while an atmospheric valve equalizes internal pressure.

An ovular container features a multi-angle top portion and an integrated handle to distribute vertical compression loads across the sidewall.

A hose clamp holding structure featuring an anti-rotation engaging portion and a deformation restraining mechanism.

A deformable container with a pressure-operated dispensing valve controls multiphase food material flow through precise differential pressure activation.

Oligomeric aliphatic isocyanates replace toxic aromatic compounds in polyurethane adhesives, preventing odor migration while maintaining bond strength.

A dispensing closure uses a bi-stable locking portion to secure the lid against accidental opening during transport.

A lowered one-piece bottle cap integrates a drip-cutting spout within the base wall to reduce material usage and weight.

A dispenser uses a conical element to obstruct liquid flow for precise drop delivery.

Integrating metering means into the sealing member minimizes dead volume and prevents bacterial contamination in ophthalmic dispensing devices.

A tube container anti-leak device uses a reciprocating opening and closing part to control content extrusion.

A drill pipe protector uses a frustoconical connecting segment and bumper with equal wall thickness for injection molding production.

A trigger-type liquid sprayer uses a plunger cylinder to store and release fluid automatically, enabling uninterrupted spray flow.

A two-piece stopper with a tapered sleeve and o-ring grooves reduces insertion force, preventing glass breakage during laboratory vessel sealing.

A hollow bottle closure uses a dual-durometer polymer structure to provide reliable sealing and aesthetic appeal.

A single-piece corrugated shipping container uses non-linear zipper perforations to convert into a display configuration without tools.

Segmentation divides the cavity into segregated zones while universality supports varied closures, resolving complexity in versatile storage design.