SMOOTH-OPENING PARACHUTE (VERSIONS) Russian patent published in 2015 - IPC B64D17/12 

FIELD: aircraft engineering.

SUBSTANCE: claimed parachute consists of slings and canopy with central opening. In compliance with three options, claimed parachute is equipped with by pass safety valve fitted at the canopy of special shape. In compliance with the first version, the canopy has the cutouts extending from the central opening to make trapezoidal lugs the edge of each being provided with the rings for rubberised-fabric cord to be passed there through. In compliance with the second version, the canopy has cutouts with rings for elastic or springy tapes to be passed there through. In compliance with the third version, the valve is arranged in the canopy and shaped to parachute and arranged above the central opening on resilient rubberised-fabric slings. The other three versions feature several safety bypass valves arrange at the canopy. In compliance with the fourth version, the canopy has radial or transverse cutouts with edges tightened by elastic or springy tapes. In compliance with the fifth version, the canopy has the lugs tightened up by two rings with the elastic or springy tapes passed there through. In compliance with the sixth version, the canopy has the lugs or cutouts their edges being tightened by rubberised-fabric cord via the eyelets in the cutout edges.

EFFECT: decreased overload at opening.

7 cl, 6 dwg