PNEUMATIC ROLLER BAG Russian patent published in 2018 - IPC B63C3/00 E02C3/00 B65G7/06 B66F3/35 

FIELD: machine building.

SUBSTANCE: invention relates to the pneumatic lifting devices for large and small vessels of various designs launching and lifting by the slips in water, in particular to the roller bags. Proposed is a pneumatic bag, which is made in the form of two cones and a cylindrical part, containing a covering rubber layer and a bearing frame from the high-strength fabric rubberized layers, for example, a nylon cord, and valves installed at the top of the cones. First rubberized layer threads are parallel or perpendicular to the roller bag axis, the second and subsequent rubberized layers threads are located at an angle α equal to 0–90°, to the cylindrical part generatrix, at that, the adjacent rubberized layers threads arrangement angles are selected with possibility of their crossing.

EFFECT: increase in the roller bag performance, expansion of its application range.

7 cl, 6 dwg