Can-Insert Insect Trap With One-Way Entry Barrier

The patent applies the inversion principle by creating a barrier that allows passage in one direction (insect entry) but blocks passage in the opposite direction (insect exit). The conical structure with increasing diameter from top to bottom, combined with the spaced-apart wall design, enables insects to enter through the smaller opening but prevents them from exiting by creating a geometric constraint that wider-bodied insects cannot overcome in reverse.

The barrier is segmented into multiple vertical elements (spaced-apart walls or ribs) rather than forming a continuous solid structure. This segmentation creates gaps that allow insects to pass through in the entry direction while the overall conical geometry and spacing arrangement prevent exit, effectively dividing the barrier function into directional control segments.

The conical barrier structure serves multiple functions simultaneously: it acts as an insect entrance funnel, a one-way exit barrier, and can be integrated with various container types (cans, bottles, cups). The universal conical geometry with spaced walls can be applied to different container openings without requiring custom-designed complex structures for each container type.

The barrier can be constructed from flexible materials such as thin plastic sheets or membranes formed into conical shapes with spaced sections. This flexibility allows the barrier to be easily adapted to different container sizes and shapes while maintaining the one-way insect trapping function, reducing manufacturing complexity compared to rigid structured barriers.