Patent 11988469 was granted and assigned to Hamilton Sundstrand on May, 2024 by the United States Patent and Trademark Office.
A vessel includes first and second portions that are non-permeable to a fluid and a third portion that is permeable to fluid. The first potion defines at least one exterior wall defining an exterior container. The second portion defines at least one interior wall defining an interior container encapsulated by the exterior container. The third portion is positioned between the at least one exterior wall and the at least one interior wall, is integrally formed with the first portion and the second portion, and has a porous structure with non-uniform connected porosity.