Lids TRIZ Cases

A thermoformed plastic recloseable device with a hinged door and frame attaches to paperboard cartons.

A cosmetic case tray uses a notched zone to engage a cover toothed wheel, raising the product for access.

An integrally formed tamper evident collar uses a discontinuous annular portion and slot to keep the tab attached, eliminating waste and choking hazards.

A detachable container lid uses a rotating handle to engage internal threads and secure a sealing ring against the vessel wall.

A vanity case lid uses a torsion spring and friction member to control opening speed, reducing production costs by simplifying assembly.

Friction within the ball and socket mechanism holds the cover in open positions, eliminating complex valves that hinder cleaning.

A container closure uses a pull tab to tear a membrane via saw teeth, eliminating foil remnants that hamper resealing.

A hinged plastic container pivots its lid to form a flat serving tray.

Segmenting the paperboard blank with a curved flex-hinge reduces adhesive use and manufacturing cost while allowing conversion to a flat serving tray.

Segmented cleats and a pivoting latch join cases without reducing interior volume, resolving the trade-off between connection security and storage capacity.

An extruded silicone spring strap replaces scrap-heavy punching with additive profiles, enabling reliable self-opening packaging.

Tapered edges and rolled corners enable efficient nesting while eliminating sharp injury risks.

Integrating a frangible membrane with the cap closure prevents product leakage in hot climates and provides tamper evidence.

A slider lid uses a resilient member to align protrusions with openings, blocking fluid flow when closed.

A dispensing closure integrates a spiral tether and breakable tab to provide hermetic sealing without separate liners.

Propylene housing with polyethylene foam cushions absorb impact forces, accommodating varying bottle sizes without increasing container volume.