Locking Devices TRIZ Cases

A one-piece hinged sealing veil stays locked open after first use, cutting plastic waste, contamination risk, and closure assembly complexity.

Moving the tamper-evident indicator circumferentially keeps it within the cap wall, reducing child access and joint stress.

A separate ring remains visible on an opaque cap, protecting container contents from light and enabling quality inspection.

Replacing metal pins with 1.5 mm resin shafts strengthens the locking claw connection while reducing wafer contamination and dust.

A dispensing closure replaces fragile tear bands with a locking pin and rotating tab for visible, consistent tamper evidence.

This case combines baffles, integral outlets, tamper evidence, and snap-fit attachment to regulate liquid flow without added inserts.

A breakable splint connects movable and fixed closure parts to secure liquid containers during transit.

Structural ribs reinforce the canister walls against bear attacks while the segmented locking pin allows easy user access.

Three legs meeting at a junction reduce metal length by 46% compared to conventional four-leg designs.

Nested piercing mechanism maintains sterile seal until use while providing visual originality indication through hidden flange.

Inclined shoulder region guides tamper-evident element deformation via gravity, preventing repositioning after initial breakage.

Cap projections permanently deform a plastic outer sleeve top surface to create visible tamper evidence upon unauthorized reclosing.

Nested rotating rings create a permanent visual state change that prevents product contamination by ensuring consumers verify unopened packages.

Segmented thread projections prevent cap removal while allowing rotation, solving recycling loss issues.

A tamper-evident closure integrates a holding device to secure the security element within the first part.

A closure with a rotation-blocking stop and movable release element secures containers.

A reclosable stopper uses a frangible bridge system to reveal first opening events while maintaining an airtight pouring chamber.

A hinged closure keeps the cap attached to the spout after opening.

A tamper evident closure uses a longitudinally movable inner element to indicate first opening.

A tamper-evident closure assembly method secures the lid during component insertion using cooperating mechanical features.

A spout closure assembly uses complementary cam portions to lift the cap axially, reducing plastic material usage in flexible packaging.

A sealing film uses a color layer that changes optically upon liquid contact to reveal a graphic object.

Deformational strain creates a porous network in the polymeric material to scatter light and change its color.

An integrated wire bottle hood eliminates separate ties and sharp edges, reducing production complexity while ensuring precise positioning.

Segmented heat-shrink sleeve perforations enable controlled removal of the tamper-evident cover, resolving the trade-off between security and ease of operation.

Angled retention spears engage the keg head collar to prevent fraudulent re-closure while blocking dust accumulation.

A head stand closure uses a sliding tamper-evident ring to create a visible gap after opening.

Segmented dual aluminum laminate isolates seal remnants to the container rim, reducing removal force and eliminating debris on the land area.

A heat-shrinkable sleeve incorporates a safety strip featuring weakened zones that tear upon removal, preventing fraudulent manipulation of the container.

A pivotal dispenser closure integrates a locking member that unlocks and opens the outlet via a single actuator force.

A plastic child-resistant closure uses a ribbed base wall to enhance structural engagement between inner and outer shells.