US 11,988,469 B2
Additively manufactured permeable barrier layer and method of manufacture
Paul M. Colson, Westfield, MA (US); Raffi O. Mangoyan, Manchester, CT (US); Alexandru Cadar, Hartford, CT (US); Joshua M. Norman, South Windsor, CT (US); John W. Kowalski, Hadley, MA (US); and Thomas James Killen, West Hartford, CT (US)
Assigned to Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on Mar. 25, 2021, as Appl. No. 17/212,718.
Claims priority of provisional application 63/001,782, filed on Mar. 30, 2020.
Prior Publication US 2021/0302109 A1, Sep. 30, 2021
Int. Cl. F28F 9/00 (2006.01); B22F 10/28 (2021.01); B33Y 10/00 (2015.01); B33Y 80/00 (2015.01); F28F 17/00 (2006.01)
CPC F28F 9/001 (2013.01) [B22F 10/28 (2021.01); B33Y 10/00 (2014.12); B33Y 80/00 (2014.12); F28F 17/005 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A vessel comprising:
a first portion that is non-permeable to a fluid, the first potion defining at least one exterior wall defining an exterior container;
a second portion that is non-permeable to the fluid, the second portion defining at least one interior wall defining an interior container encapsulated by the exterior container; and
a third portion that is permeable to the fluid, the third portion being positioned between the at least one exterior wall and the at least one interior wall and having a thickness extending from the exterior wall to the interior wall approximately equal to a laser diameter used to form the third portion, the third portion being integrally formed with the first portion and the second portion and comprising a porous structure with non-uniform connected porosity
wherein the porous structure comprises a plurality of dense regions having a porosity of less than 0.5 percent.