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    Method and system for fabricating dual curvature micro-truss structures
    2.
    发明授权
    Method and system for fabricating dual curvature micro-truss structures 有权

    公开(公告)号：US10239237B1

    公开(公告)日：2019-03-26

    申请号：US14824481

    申请日：2015-08-12

    Applicant: HRL LABORATORIES, LLC

    Inventor： Jie Ensberg ,  Christopher J. Ro ,  Sophia S. Yang ,  Zak C. Eckel ,  Eric C. Clough

    IPC: B29C35/08 ,  B29C33/40 ,  B29C33/60 ,  B29C33/38 ,  B32B1/02 ,  B32B3/12 ,  B29K105/00 ,  B29L31/00

    Abstract: A method and/or system for forming a micro-truss structure in an essentially arbitrary shape. A mold that has a transparent portion, and having an interior volume in the desired shape, is filled with photomonomer resin. The material for the transparent portion of the mold is selected to be a material that is index-matched to the photomonomer resin. The filled mold, placed into a bath of transparent fluid index-matched to the transparent portion of the mold, and illuminated, from outside the fluid, through a photomask, with collimated light. The collimated light travels through the photomask forming beams of light that enter the transparent fluid, propagate into the mold, and form a micro-truss structure in the shape of the interior volume of the mold. The micro-truss structure may then be removed from the mold, or part or all of the mold may be left adhered to the micro-truss structure, forming covering face sheets.

    MICROLATTICE STRUCTURES INCLUDING FLAME RETARDANT MATERIALS AND COMPOSITIONS AND METHODS FOR FORMING THE SAME
    4.
    发明申请
    MICROLATTICE STRUCTURES INCLUDING FLAME RETARDANT MATERIALS AND COMPOSITIONS AND METHODS FOR FORMING THE SAME 审中-公开
    包含阻燃材料和组合物的微结构及其形成方法

    公开(公告)号：US20160046769A1

    公开(公告)日：2016-02-18

    申请号：US14826182

    申请日：2015-08-13

    Applicant: HRL Laboratories, LLC

    Inventor： Sophia S. Yang ,  Eric C. Clough ,  Thomas I. Boundy ,  Andrew P. Nowak ,  Zak C. Eckel ,  Alan J. Jacobsen

    IPC: C08G75/00 ,  B05D3/00 ,  C09D181/00

    CPC classification number: C08G75/00 ,  C08K5/10 ,  C09D181/00 ,  C09K21/00

    Abstract: A composition for forming a microlattice structure includes a photopolymerizable compound and a flame retardant material. A microlattice structure includes a plurality of struts interconnected at a plurality of nodes, the struts including: a copolymer including a reaction product of a photopolymerizable compound and a flame retardant material. A microlattice structure includes a plurality of struts interconnected at a plurality of nodes, the struts including: a polymer including a reaction product of a photopolymerizable compound; and a flame retardant material.

    Abstract translation: 用于形成微晶格结构的组合物包括光聚合化合物和阻燃材料。 微晶格结构包括在多个节点处互连的多个支柱，所述支柱包括：包含可光聚合化合物与阻燃材料的反应产物的共聚物。 微晶格结构包括在多个节点处互连的多个支柱，所述支柱包括：包含可光聚合化合物的反应产物的聚合物; 和阻燃材料。

    Device for in-line consolidation of composite materials
    5.
    发明授权
    Device for in-line consolidation of composite materials 有权

    公开(公告)号：US11167455B1

    公开(公告)日：2021-11-09

    申请号：US16906697

    申请日：2020-06-19

    Applicant: HRL LABORATORIES, LLC

    Inventor： Jacob M. Hundley ,  Eric C. Clough ,  Zak C. Eckel

    IPC: B29C35/08 ,  B29K101/10

    Abstract: A system for fabricating composite parts efficiently. Pre-impregnated (prepreg) composite material is drawn as a sheet from a roll and fed by advancement rollers into a stamping and molding station in which a piece of the prepreg material is cut, on a mold, from the sheet. Pressure is applied to cause the prepreg material to conform to a surface of the mold, and the prepreg is cured with ultraviolet light. Additional layers of prepreg may be cut and cured on any layers that have already been cured on the mold. The complete part may be removed from the mold with ejector pins. Scrap prepreg may be recycled in a recycling station that separates reinforcing fiber from uncured resin.

    Ordered cellular structures and methods of manufacturing the same
    9.
    发明授权
    Ordered cellular structures and methods of manufacturing the same 有权

    公开(公告)号：US10399909B1

    公开(公告)日：2019-09-03

    申请号：US15190486

    申请日：2016-06-23

    Applicant: HRL LABORATORIES, LLC

    Inventor： Zak C. Eckel ,  Tobias A. Schaedler ,  Eric C. Clough

    IPC: C04B38/00 ,  G03F7/20

    Abstract: A method of manufacturing an ordered cellular structure including a series of interconnected unit cells. Each unit cell includes at least one straight wall segment. The method includes irradiating a volume of photo-monomer in a reservoir with at least one light beam from at least one light source to form the ordered cellular structure. Irradiating the volume of photo-monomer includes directing the at least one light beam though a series of interconnected apertures defined in a photo-mask covering the reservoir.

    Phononic composite material with internal resonant phases
    10.
    发明授权
    Phononic composite material with internal resonant phases 有权

    公开(公告)号：US11584505B1

    公开(公告)日：2023-02-21

    申请号：US16268117

    申请日：2019-02-05

    Applicant: HRL LABORATORIES, LLC

    Inventor： Jacob M. Hundley ,  Eric C. Clough ,  Alan J. Jacobsen

    IPC: G10K11/168 ,  B64C1/40 ,  G10K11/162

    Abstract: A phononic composite material providing structural strength and blocking the propagation of elastic waves over a frequency range referred to as the bandgap. In one embodiment, the phononic composite material consists of a plurality of periodic units, each of which includes a central fiber, a relatively soft interface layer surrounding the fiber, and a matrix layer surrounding the interface layer. The properties of the interface layer may be adjusted, e.g., by adjusting the temperature of the phononic composite material, to transition from a state with a bandgap to a state lacking a bandgap.

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