Hrl Laboratories, LLC

Kevin J Maloney

Christopher Stephen Roper

Alan Jon Jacobsen

Tobias A Schaedler

William B Carter

Andrew Paul Nowak

Adam E Sorensen

Robert E Doty

Zak C Eckel

Sophia Shu Yang

An ordered, 3-dimensional, micro-scale, open-cellular truss structure including interconnected hollow polymer tubes. The hollow micro-truss structure separates two fluid volumes which can be independently pressurized or depressurized to control flow, or materials properties, or both. Applications for this invention include deployable structures, inflatable structures, flow control, and vented padding.

Hollow polymer micro-truss structures containing pressurized fluids

A structure including a hollow porous material with an architected fluid interface to the hollow porous material and methods of forming the same. The architected fluid interface may be in the form of a manifold with tapered openings, each providing a gradually narrowing transition to the hollow channels within which fluid may flow through the hollow porous material. The material may be formed by forming an open-celled sacrificial scaffold, immersing one surface of the open-celled sacrificial scaffold in a bonding agent, attaching a face sheet to the surface to form a sacrificial scaffold assembly, coating the assembly with a coating material, and removing the sacrificial scaffold assembly.

Hollow porous materials with architected fluid interfaces for reduced overall pressure loss

A three-dimensional microlattice structure includes a series of interconnected struts extending along at least three different directions, a series of intermediate nodes defined at intersections between the struts, and a basal plane structure extending laterally between and interconnecting at least two of the nodes. The basal plane structure may be configured to transversely and rotationally constrain the nodes to increase the overall compressive strength and stiffness of the microlattice structure. In one embodiment, the interconnected struts are arranged into an array of ordered unit cells.

Basal plane reinforced microlattice

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Los Angeles, CA, United States of America

Kevin J Maloney