Abstract: The improvement refers to an inflatable device for quick expansion of parachutes for low altitude jumping, comprising elements of bags firmly connected to the canopy and sheathed into by tubes of the expansion structure, as well as lines tied between those bags and tubes, the object of the improvement being to permit a reduction of the dimensions of the expansion structure and to increase its expansion speed.

Abstract: For use as an escape device from burning buildings or for sporting use, a parachute canopy is supported in an open use position by an inflatable frame consisting of a network of inflatable lightweight flexible tubes. The inflatable framework has a portion which surrounds the waist of a user and also embodies an inflatable prelaunching positioning member. Bottled air or gas may be utilized to inflate the device through an inflation valve provided thereon. A restraining belt permits preinflation of the framework such that upon release the canopy expands almost instantaneously by the straightening of folded flexible tubes.