Hollow Non-Inflatable Balls TRIZ Cases

A tennis practice device uses a segmented suspension cord to enable realistic ball trajectories, resolving tangling and setup complexity.

A wind tolerant ball uses venturi shaped apertures and dimples to manage aerodynamic airflow through a thin-walled hollow sphere.

Specific inorganic fillers with controlled pore structures block gas molecules to prevent leakage from the hollow core while maintaining resilience performance.

Flat inorganic fillers orient within the rubber matrix to block gas permeation, preventing internal pressure loss and maintaining impact resilience.

Dimples on a tennis ball core reduce drag to extend flight distance.