Three-dimensional vacuum envelope

DETAILED DESCRIPTION A vacuum envelope having three-dimensional properties is provided for accomodating objects of unusual size and/or shape.
The envelope is constructed from two plies of a flexible and substantially gas-impermeable material.
The plies are overlapped, and one is pulled up to form a loop extending perpendicularly with respect to the other.
The edges of the plies are then sealed to each other to create an envelope.
This envelope will include at least two portions: one between the ajacent plies and another defined by the loop.
Additional loops could be provided if necessary.
The envelope is particularly suitable for storing a parachute.
The transfer links of the parachute are inserted into the loop while the canopy and other rigging remain between the plies.
After evacuation, the transfer links will remain maneuverable with respect to the remainder of the package so that they may easily be connected to the aircrewman.