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11.发明申请公开(公告)号：US20160083256A1
公开(公告)日：2016-03-24
申请号：US14858981
申请日：2015-09-18
Applicant: Massachusetts Institute of Technology
Inventor： Anastasios John Hart , Brian L. Wardle , Enrique J. Garcia , Alexander H. Slocum
CPC classification number: C01B31/024 , B01J21/04 , B01J23/745 , B82B1/00 , B82Y30/00 , B82Y40/00 , C01B32/158 , C01B32/16 , C01B32/162 , C01B32/164 , C01B32/18 , C01B2202/08 , D01F9/127 , D01F9/133 , D06M11/74 , D06M23/08 , Y02P20/582 , Y02P20/584 , Y10S977/742 , Y10S977/843
Abstract: The present invention provides methods for uniform growth of nanostructures such as nanotubes (e.g., carbon nanotubes) on the surface of a substrate, wherein the long axes of the nanostructures may be substantially aligned. The nanostructures may be further processed for use in various applications, such as composite materials. For example, a set of aligned nanostructures may be formed and transferred, either in bulk or to another surface, to another material to enhance the properties of the material. In some cases, the nanostructures may enhance the mechanical properties of a material, for example, providing mechanical reinforcement at an interface between two materials or plies. In some cases, the nanostructures may enhance thermal and/or electronic properties of a material. The present invention also provides systems and methods for growth of nanostructures, including batch processes and continuous processes.
Abstract translation: 本发明提供了在衬底的表面上纳米结构例如纳米管（例如，碳纳米管）均匀生长的方法，其中纳米结构的长轴可以基本上对齐。 纳米结构可以进一步加工以用于各种应用中，例如复合材料。 例如，可以将一组对准的纳米结构体在本体或另一表面中形成并转移到另一种材料上以增强材料的性质。 在一些情况下，纳米结构可以增强材料的机械性能，例如在两个材料或层之间的界面处提供机械加强。 在一些情况下，纳米结构可以增强材料的热和/或电子性质。 本发明还提供用于生长纳米结构的系统和方法，包括间歇方法和连续方法。
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公开(公告)号：US12070817B2
公开(公告)日：2024-08-27
申请号：US18070151
申请日：2022-11-28
Applicant: Massachusetts Institute of Technology
Inventor： Ryan Wade Penny , Anastasios John Hart
IPC: B23K26/342 , B23K26/03 , B23K26/06 , B23K26/0622 , B23K26/073 , B23K26/082 , B23K26/70 , B29C64/30 , B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B23K31/12 , G01N21/84 , G01N21/94 , G01N21/95
CPC classification number: B23K26/342 , B23K26/032 , B23K26/0622 , B23K26/0626 , B23K26/073 , B23K26/0821 , B23K26/70 , B29C64/30 , B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B23K26/702 , B23K31/125 , G01N21/8422 , G01N21/94 , G01N21/95
Abstract: Systems, devices, and methods for additive manufacturing are provided that allow for components being manufactured to be assessed during the printing process. As a result, changes to a print plan can be considered, made, and implemented during the printing process. More particularly, in exemplary embodiments, a spectrometer is operated while a component is being printed to measure one or more parameters associated with one or more layers of the component being printed. The measured parameter(s) are then relied upon to determine if any changes are needed to the way printing is occurring, and if such changes are desirable, the system is able to implement such changes during the printing process. By way of non-limiting examples, printed material in one or more layers may be reheated to alter the printed component, such as to remove defects identified by the spectrometer data. A variety of systems, devices, and methods for performing real-time sensing and control of an additive manufacturing process are also provided.
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公开(公告)号：US11602886B2
公开(公告)日：2023-03-14
申请号：US16773313
申请日：2020-01-27
Applicant: Massachusetts Institute of Technology
Inventor： Anastasios John Hart , Sebastian William Pattinson , Meghan Elizabeth Huber , Jongwoo Lee , Ricardo Roberts
Abstract: Wearable and implantable devices that are used to support human anatomy and are formed using additive manufacturing are provided. Systems and methods for performing additive manufacturing allow for the formulation of a mesh material that has localized stiffness and slack in regions to best serve the needs of the patient. For example, regions of the mesh material can be designed to rigidly support portions of human anatomy, such as injured tissue, while regions of the mesh material adjacent to the injured tissue can be designed to closely mimic movement of the relevant human anatomy. For example, the mesh material can be formed in a manner such that it does not fold in those regions, and therefore is not obtrusive. The present disclosure allows for control of toolpaths when printing fibers used to form the devices. Other devices, as well as systems and methods for creating the same, are also provided.
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14.发明授权公开(公告)号：US11421090B2
公开(公告)日：2022-08-23
申请号：US16663313
申请日：2019-10-24
Applicant: Massachusetts Institute of Technology
Inventor： Cécile A. C. Chazot , Anastasios John Hart
Abstract: The present disclosure is directed to synthesizing a nanomaterial-polymer composite via in situ interfacial polymerization. A nanomaterial is exposed to a solution having a first solute dissolved in an aqueous solvent to uniformly, or substantially uniformly, distribute the solvent throughout the porosity of the network of the nanomaterial. The nanomaterial is then exposed to a second solution having a second solute dissolved in an organic solvent, which is substantially immiscible with the first solvent, with the first solute reacting with the second solute. The first and second solutions can be stirred, or otherwise moved with respect to each other, to facilitate transport of the second solution throughout the nanomaterial to promote reaction of the polymer within the nanomaterial to produce a polymer composite having uniform morphology.
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公开(公告)号：US10919158B2
公开(公告)日：2021-02-16
申请号：US16268381
申请日：2019-02-05
Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Inventor： Anastasios John Hart , Sanha Kim
Abstract: Controllable electromechanical adhesive devices including three-dimensional dielectrically-coated microstructures that are mechanically compliant are provided. The microstructures can be controlled to provide tunable electromechanical surface adhesion, allowing for dexterous gripping of microscale and/or macroscale objects. For example, the devices can tune the surface adhesion strength of one or more microstructures without complex mechanical actuation in a wide range of on/off ratios with low voltage. The devices can be configured as a force sensor capable of providing tactile feedback for determining the load applied against the microstructures by the surface of an object. For example, the devices can provide output indicative of changes in an electrical property of one or more microstructures for determining the applied load of an object. The devices can be pixelated or otherwise configured to provide localized force sensing and/or surface adhesion. Related systems and methods for controlling the disclosed electromechanical adhesive devices are also described.
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Patent Agency Ranking
公开(公告)号：US20200061985A1
公开(公告)日：2020-02-27
申请号：US16502313
申请日：2019-07-03
Applicant: Massachusetts Institute of Technology
Inventor： Brian L. Wardle , Anastasios John Hart , Enrique J. Garcia , Alexander H. Slocum
IPC: B32B37/02 , C01B32/162 , C01B32/18 , B82B1/00 , B82Y30/00 , B82Y40/00 , C08J5/00 , D01F9/127 , D01F9/133
Abstract: The present invention provides methods for uniform growth of nanostructures such as nanotubes (e.g., carbon nanotubes) on the surface of a substrate, wherein the long axes of the nanostructures may be substantially aligned. The nanostructures may be further processed for use in various applications, such as composite materials. For example, a set of aligned nanostructures may be formed and transferred, either in bulk or to another surface, to another material to enhance the properties of the material. In some cases, the nanostructures may enhance the mechanical properties of a material, for example, providing mechanical reinforcement at an interface between two materials or plies. In some cases, the nanostructures may enhance thermal and/or electronic properties of a material. The present invention also provides systems and methods for growth of nanostructures, including batch processes and continuous processes.
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公开(公告)号：US20200023397A1
公开(公告)日：2020-01-23
申请号：US16212153
申请日：2018-12-06
Applicant: Massachusetts Institute of Technology
Inventor： Anastasios John Hart , Justin Douglas Beroz , Henry Merrow
Abstract: A particle can be discretely ejected from an orifice in a controlled manner to form a product.
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18.发明授权公开(公告)号：US10525632B2
公开(公告)日：2020-01-07
申请号：US15636502
申请日：2017-06-28
Applicant: Massachusetts Institute of Technology
Inventor： Ryan Wade Penny , Anastasios John Hart
IPC: B29C64/40 , B33Y40/00 , B22F5/00 , B22F3/24 , B22F3/105 , B33Y80/00 , G05B19/4099 , B33Y50/02 , B29C64/386 , B29C64/393
Abstract: Methods, systems, and devices for precision locating additively manufactured components for assembly and/or post processing manufacturing are provided for herein. In some embodiments, at least one component can be additively manufactured to include one or more kinematic features on one or more surfaces of the component. The kinematic feature(s) can be configured to engage complementary kinematic feature(s) formed in a second component so the two components can form an assembly. Alternatively, the kinematic feature(s) can be configured to engage complementary kinematic feature(s) associated with a post-processing machine such that the one or more post-processing actions can be performed on the component after the component is precisely located with respect to the machine by way of the kinematic features of the component and associated with the machine. A variety of systems and methods that utilize kinematic features are also provided.
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公开(公告)号：US20190232557A1
公开(公告)日：2019-08-01
申请号：US16261535
申请日：2019-01-29
Applicant: Massachusetts Institute of Technology
Inventor： Anastasios John Hart , Justin Douglas Beroz , Alvin Thong Lip Tan
IPC: B29C64/165 , C09D5/22 , C09D1/00 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B29C64/20 , B29C64/393 , B33Y70/00
CPC classification number: B29C64/165 , B29C64/20 , B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B33Y70/00 , C09D1/00 , C09D5/22
Abstract: Disclosed are methods for building colloidal solids by precipitation from a liquid bridge using a needle through which a colloidal particle suspension is dispensed onto a substrate in a temperature-controlled environment. The substrate can rest on a motion-controlled stage, and freeform shapes can be built by coordinating the motion of the stage with the rate of dispense of colloidal particle suspension. Aspects include a scaling law that governs the rate of assembly and a direct-write colloidal assembly process that combines self-assembly with direct-write 3D printing, and can be used to build exemplary freestanding structures using a diverse materials, such as polystyrene, silica and gold particles. Additionally, disclosed are methods for predicting and eliminating cracking by a geometric relationship between particle size and structure dimensions, enabling the production of macroscale, crack-free colloidal crystals.
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公开(公告)号：US20160324206A1
公开(公告)日：2016-11-10
申请号：US14707167
申请日：2015-05-08
Applicant: Massachusetts Institute of Technology
Inventor： Kristine A. Bunker , Jamison Go , Anastasios John Hart , Kyle N. Hounsell , Donghyun Kim
CPC classification number: A23G9/28 , A23G9/20 , A23G9/44 , A23P20/20 , A23P2020/253 , B29C64/106 , B33Y10/00 , B33Y30/00 , B33Y70/00
Abstract: Fused deposition model printer system. The system prints cold slurry substances and includes a source of a cold slurry substance with a print platform supported for at least three axes of motion under computer control. An extruder head system including a nozzle extrudes a stream of the cold slurry substance from the source onto the print platform, the extruder head including a heater. A cryogen line is provided having a perforated section for surrounding the continuous stream of the cold slurry substance to spray a cryogen onto the cold slurry substance to cool it upon extrusion. A chilled compartment or freezer is provided in which the print platform, extruder head system, and cryogen line are contained to maintain those components at a selected temperature whereby the cold slurry substance is printed to form a desired three dimensional shape.
Abstract translation: 熔融沉积模型打印机系统。 该系统印刷冷浆物质，并且包括冷浆物质源，其中打印平台在计算机控制下支撑至少三个运动轴。 包括喷嘴的挤出机头系统将来自源的冷浆物质流挤出到打印平台上，挤出机头包括加热器。 提供了一种制冷剂管线，其具有用于围绕冷浆料物质的连续流的穿孔部分，以将冷冻剂喷雾到冷的浆料上，以便在挤压时将其冷却。 提供了一种冷藏室或冷冻室，其中包含印刷平台，挤出机头系统和冷冻剂管线，以将这些组分保持在选定的温度，由此冷浆料被打印以形成所需的三维形状。
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