Removable Lids/Covers TRIZ Cases

A closure device with a movable guide rail system seals the container lid opening.

Moves anti-rotation features to the vertical latching edge, reducing stacking height and weight while preventing twisting.

Segmenting the knob into latching and pushing parts resolves the conflict between locking reliability and opening force.

Segmented V-shaped protrusions and recesses provide torsional rigidity and leak-proof sealing for separate food compartments in a thermal container.

A food container cover combines a viewing slot with an engaging flange and a frame member featuring locking wings connected via a living hinge.

A bistable flange flips between stable positions to secure a container lid with consistent peripheral pressure.

An elastic retainer holds the lid in place without permanent tethers, eliminating swing-back hazards for sanitation workers.

Segmented lid reservoirs utilize capillary action and surface tension to hold fluid, preventing premature drying caused by elevated temperatures and humidity.

Nested concentric dials align with locking rib gaps to resolve the contradiction between compact device size and complex mechanism reliability.

A liquid dispensing lid uses a movable fluid member and elastomeric valve to control flow.