Patent ID: 11919696

Abstract:
A system for compensating for atmospheric pressure changes for high-altitude transport of packages containing powdered and/or granular material may include: one or more packages including a one-way degassing valve configured to flow gaseous substances produced by the powdered and/or granular material outside the one or more packages. Each package may include: a casing; and a containment element configured to wrap the casing. The casing may include: a main body made of expandable material; a capping device associated with the main body; and an insertion opening in the main body. The capping device may include: a tubular sleeve including a first coupling and a bottom wall; a closure element including a second coupling; and first and second one-way valves associated with the bottom wall. The first one-way valve can be configured to allow insertion of gases. The second one-way valve can be configured to allow outflow of gases.