SKIS AT PNEUMATIC ROLLS AND AIR-CUSHION Russian patent published in 2014 - IPC A63C5/00 

FIELD: transport.

SUBSTANCE: proposed device comprises bar-like base changing into arcs and bracket. To reduce specific pressure on soil, skis have air cushion to be filled with compressed air and made of resilient material, for example rubber-metal-cloth-based material, secured by plugs and yokes at bearing surface edges (cradle) of hemisphere cross-section and ski-shape. Skis comprises a set of closely spaced air rolls with bearings, forks and their supports built in by fasteners in air cushion bottom surface to run said air rolls in device motion.

EFFECT: higher flotation and transportation capacity, compact design, smooth run.

2 cl, 2 dwg