Patent ID: 6085909
Filing Date: 2000-07-11
Classification: B31D,B65B,B65D,Y02W

Abstract:
A reusable envelope for wrapping and packaging of a articles of various shapes comprising:(a) a top surface having edges;(b) a bottom surface having edges, said top and bottom surfaces being permanently sealed to define an exterior and an interior of said envelope;(c) light weight and compressible particles in a closed-packed arrangement positioned within the interior of said envelope, said envelope and said particles collectively defining a planar shape having a thickness of up to about 15 centimeters,said interior of said envelope being at a lower air pressure than the atmospheric pressure on the exterior surface of said envelope so that there is a differential in air pressure between said interior and atmospheric pressure acting on said exterior,said differential air pressure and said thickness collectively maintaining said particles in said closed packed arrangement,providing sufficient rigidity to said envelope to maintain said envelope in said planar shape when being held at one end thereof, andproviding sufficient flexibility to said envelope for it to be wrapped around and assume the shape of a first article without change in said differential air pressure, returned to said planar shape without change in said differential air pressure, and for it to be wrapped around and assume the shape of a second and differently shaped article without change in said differential air.