using fluid at high pressure supplied from an independent source to provide a cushion between load and ground

Devices for assisting manual moving or tilting heavy loads > Devices adapted to be interposed between loads and the ground or floor, e.g. crowbars with means for assisting conveyance of loads > using fluid at high pressure supplied from an independent source to provide a cushion between load and ground

Devices for assisting manual moving or tilting heavy loads (roller-ways B65G13/00; for tilting and emptying barrels or casks B65G65/24) > Devices adapted to be interposed between loads and the ground or floor, e.g. crowbars with means for assisting conveyance of loads > using fluid at high pressure supplied from an independent source to provide a cushion between load and ground