Removable Lids/Covers TRIZ Cases

Upwardly extending fingers and a membrane keep reactive substances separate until use, preventing premature mixing.

A sheet metal lid incorporates a vacuum release button that separates a bonded sealant to equalize pressure and facilitate easy removal.

Removable tamper strips expose locking tabs that engage angled receivers, resolving child resistance and ease of opening.

Single-piece flip top caps with breakable engagement means eliminate assembly complexity while ensuring tamper-evident integrity.

A vacuum-sealed food package uses a gas-filled space between film layers to cushion the product.

A pot lid uses a radial slider and latching element to secure the container.

Nested U-shaped channels and projections provide reliable liquid-tight seals while enabling easy, repeated opening without damaging the latch mechanism.

A storage device coupling mechanism uses lateral displacement to detach components without transferring weight to snap locks.

An asymmetric flange lock prevents unauthorized opening of food containers while preserving freshness through tear-off perforations.

A plastic lid-container assembly uses interference and contact sealing zones to ensure secure engagement without gaskets.

A hybrid metal-plastic lid uses a downward seal element to form a lip seal against the container inner circumference.

Removable panel with spout slides inside container to enable controlled food dispensing while maintaining stable cubic storage configuration.

A split clamping ring uses a spring-loaded lever to widen its diameter for push-on mounting and retract for secure closure.

Flexible membrane bottoms and snap-fit seals dynamically reduce internal air volume, preventing oxidation and preserving food freshness.

An inwardly curled lid rim interlocks with a protruding container bead to prevent accidental opening while enabling tool-assisted access.

A container lid uses a dome-shaped tongue engaging a matching groove to create punctual contact points that generate high pressure.

A tamper-evident container lid features a grasping tab flanked by breakable joints that sever along the periphery to detach from the base.

Fluted sidewalls and floating bottoms dissipate impact forces to protect fragile hollow cones from breakage during transport.

A locking mechanism with symmetric hinge portions and engaging protrusions secures container lids through elastic deformation.

A thermoformed container uses a welded retention tab to secure the lid and base, creating a visible mechanical break upon opening.

Bifurcated corner panels anchor plastic handles within a foldable corrugated container, preventing handle weakening from twisting forces during transport.

Segmented locking tabs on a plastic lid engage guide grooves in a corrugated cardboard tray wall to balance load-bearing capacity with easy opening resistance.

Segmented hinge lines of weakness separate under force, resolving reliability and complexity trade-offs.

Breakable joints in the lid tab sever upon opening to provide visual tamper evidence without adding complex separate components.

A double button cream bottle uses opposing buttons and an elastic ring to secure the cap.

Elastic mesh screen prevents vaporization and leakage of liquid cosmetics in refillable compacts.

A closure body with projecting portions and a ring holding interleaved retaining fingers that engage the container rim.

A pivotable front wall with angled tabs engages a cover plate locking mechanism for secure storage of small parts.

Triangular flaps seal corners while locking tabs snap the lid, reducing residual waste from liquid containers.

An integrated thermoformed lid combines a hollow straw mouthpiece with a pressure equalization valve to prevent vacuum formation during beverage consumption.

A container cover uses stopping protrusions to create frictional contact with the mouth portion.

Movable buckles on engaging portions interlock with locking protrusions to prevent leakage from deformation while simplifying assembly.

Segmented base partitions and universal locking shoulders isolate food products to prevent co-mingling and drying out while maintaining simple structure.

A child-resistant cover uses locking elements to secure a container rim while allowing adult access via a break-away release band.

A food slicer integrates a mobile carriage and vacuum sealing mechanism to preserve unsliced products directly in the slicing container.

A foldable lid container uses a hinged flap to provide access while maintaining the base footprint, eliminating space needed for detached lids.

A layered paper box structure uses a stepped inner surface to support a carrying plate flange without adhesive bonding.

An elastic lower annular rim deforms during removal to resolve the contradiction between tight sealing and ease of operation in reusable containers.

A multipart paper cover uses a continuous collar with an elastic bead to engage container rims.

Segmented lid body and separable dispensing components enable easy cleaning, preventing residue buildup that causes malfunction in prior art designs.

A thermoplastic core sample box uses male and female fittings to interlock stacked units for secure transport.

A collapsible triangular container stores and reheats pizza slices using a vented lid and nested walls.

Segmenting the lid seal into a peelable flap and breaking tab resolves the trade-off between visible tamper evidence and ease of operation.

A dispensing closure employs external and internal seals to maintain spout integrity while a cruciform valve prevents premature opening.

A nested packaging system uses a foldable inner box housed within a robust outer shell to enable compact flat pack storage and secure item transport.

The inverted female peripheral sealing cavity prevents dirty water collection in the sealing rim while maintaining effective non-metallic sealing performance.

Raised rim corner bodies contact the tote at three areas, resisting toppling when stacked high.

Segmented connectors maintain structural rigidity while allowing compartment detachment, resolving separation risks during transport.

Segmented rim profile with welded junctions prevents deformation and leakage in aluminum containers.