Segmented bristle zones retain solid cosmetics to prevent smears and streaks during large area coverage.
A roller-ball bristle nozzle delivers low-viscosity liquids via gravity flow.
Tapered guide surfaces on an adapter self-align rigid circuit board segments within housings, preventing water ingress without complex fixtures.
A flexible dental mouthpiece alternates between relaxation and contraction states to scrub multiple teeth surfaces simultaneously.
Offset double spike rows form recess reservoirs that separate eyelashes and prevent clumping without frequent reloading.
Rectangular toothbrush tufts create capillary channels to remove plaque, solving limited cleaning in conventional circular designs.
A handheld device with an abrasive surface scarifies prescription labels to render printed information unreadable.