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29 条记录 (耗时 0.032 秒)

    Process for removing loose powder particles from interior passages of a body
    3.
    发明授权
    Process for removing loose powder particles from interior passages of a body 失效
    从身体内部通道去除松散粉末颗粒的方法

    公开(公告)号：US5490882A

    公开(公告)日：1996-02-13

    申请号：US983156

    申请日：1992-11-30

    申请人： Emanuel M. Sachs ,  Michael J. Cima ,  James F. Bredt ,  Satbir Khanuja

    发明人： Emanuel M. Sachs ,  Michael J. Cima ,  James F. Bredt ,  Satbir Khanuja

    IPC分类号： B08B3/10 ,  B08B3/12 ,  B08B5/04 ,  B08B7/00 ,  B08B9/00 ,  B08B9/08 ,  B22C9/18 ,  B22C23/02 ,  B22F3/00 ,  B24B1/04 ,  B29C33/56

    CPC分类号： B22F3/008 ,  B08B3/10 ,  B08B3/12 ,  B08B5/04 ,  B08B7/00 ,  B08B9/00 ,  B22C9/18 ,  B24B1/04 ,  B29C33/56

    摘要： A technique for removing loose powder from the interior surfaces of ceramic molds made using layer manufacturing processes, such as three dimensional printing processes. The interior of a mold can be filled with liquid, such as water, which is boiled by applying microwave energy of a frequency selected to heat the liquid. The particles are entrained in the flow caused by the boiling liquid. Alternatively, fine particles are introduced into the mold and the mold is agitated to dislodge the particles and the powder so that they can be poured out of the mold. Such technique tends also to remove the surface finish of the mold. Any of the particles which remain can be dissolved in a liquid and removed in the liquid from the mold. Further, the surface finish of the mold can be improved by casting a slip of fine particles onto the surface to form a generally level, and preferably non-conformal, coating on the surfaces.

    摘要翻译： 从使用层制造工艺（例如三维印刷工艺）制成的陶瓷模具的内表面去除松散粉末的技术。 模具的内部可以充满液体，例如水，其通过施加频率选择的加热液体的微波能量来煮沸。 颗粒被夹带在由沸腾液体引起的流中。 或者，将细颗粒引入模具中并搅拌模具以移除颗粒和粉末，使得它们可以从模具中倒出。 这种技术也可以去除模具的表面光洁度。 残留的任何颗粒都可以溶解在液体中并从模具中移出液体。 此外，可以通过将表面上的微细颗粒滑移到表面上以形成表面上的大致水平的，优选非保形的涂层来改善模具的表面光洁度。

    Enhanced methods for fabricating solar cells with textured surfaces
    5.
    发明授权
    Enhanced methods for fabricating solar cells with textured surfaces 有权
    用于制造具有纹理表面的太阳能电池的增强方法

    公开(公告)号：US08569099B2

    公开(公告)日：2013-10-29

    申请号：US13595404

    申请日：2012-08-27

    申请人： Emanuel M. Sachs ,  James F. Bredt

    发明人： Emanuel M. Sachs ,  James F. Bredt

    IPC分类号： H01L21/00

    CPC分类号： H01L31/02363 ,  C23C18/1607 ,  C23C18/1608 ,  C23C18/161 ,  C23C18/1635 ,  C23C18/1653 ,  C23C18/1692 ,  C23C18/1893 ,  C25D5/006 ,  C25D5/02 ,  C25D5/022 ,  C25D7/126 ,  H01L31/02168 ,  H01L31/022425 ,  Y02E10/50

    摘要： Semiconductor photovoltaic cells have surfaces that are textured for processing and photovoltaic reasons. The absorbing regions may have grooves that reduce loss of solar energy that would otherwise be lost by reflection. One form of texturing has grooves and ridges. The cell also includes metallizations for collecting generated electrical carriers and conducting them away, which may be channels. The topography is considered during production, using a process that takes advantage of the topography to govern what locations will receive a specific processing, and which locations will not. Liquids are treated directly into zones. They migrate throughout a zone and act upon the locations contacted. They do not migrate to other zones, due to impediments to flow, such as edges, walls and ridges. Liquid may also be deposited and migrate within a zone, to block or mask a subsequent activity, such as etching.

    摘要翻译： 半导体光伏电池具有纹理的表面用于处理和光伏原因。 吸收区域可以具有凹槽，其减少否则将被反射损失的太阳能损失。 纹理的一种形式有凹槽和脊。 电池还包括用于收集生成的电载体并将其导出的金属化，其可以是通道。 在生产中考虑地形，使用利用地形来处理哪些位置将接收特定处理的过程，以及哪些位置不会。 液体被直接处理进入区域。 他们迁移到整个区域，并对所联系的地点采取行动。 由于阻碍流动，例如边缘，墙壁和脊，它们不会迁移到其他区域。 液体也可以沉积并在区域内迁移，以阻挡或掩蔽随后的活动，例如蚀刻。

    SOLAR CELLS WITH TEXTURED SURFACES
    6.
    发明申请
    SOLAR CELLS WITH TEXTURED SURFACES 有权
    带有纹理表面的太阳能电池

    公开(公告)号：US20110045627A1

    公开(公告)日：2011-02-24

    申请号：US12526438

    申请日：2008-02-15

    申请人： Emanuel M. Sachs ,  James F. Bredt

    发明人： Emanuel M. Sachs ,  James F. Bredt

    IPC分类号： H01L31/18

    CPC分类号： H01L31/02363 ,  C23C18/1607 ,  C23C18/1608 ,  C23C18/161 ,  C23C18/1635 ,  C23C18/1653 ,  C23C18/1692 ,  C23C18/1893 ,  C25D5/006 ,  C25D5/02 ,  C25D5/022 ,  C25D7/126 ,  H01L31/02168 ,  H01L31/022425 ,  Y02E10/50

    摘要： Semiconductor photovoltaic cells have surfaces that are textured for processing and photovoltaic reasons. The absorbing regions may have parallel grooves that reduce loss of solar energy that would otherwise be lost by reflection. One form of texturing has parallel grooves and ridges. The cell also includes regions of metallization for collecting the generated electrical carriers and conducting them away, which may be channels. The topography is considered during production, using a process that takes advantage of the topography to govern what locations upon will receive a specific processing, and which locations will not receive such a processing. Liquids are treated directly into zones of the cell. They migrate throughout a zone and act upon the locations contacted. They do not migrate to other zones, due to impediments to fluid flow that are features of the surface texture, such as edges, walls and ridges. Blocking liquid may also be deposited and migrate within a zone, to block or mask a subsequent activity, such as etching.

    摘要翻译： 半导体光伏电池具有纹理的表面用于处理和光伏原因。 吸收区域可以具有平行的沟槽，其减少否则将被反射损失的太阳能损失。 一种形式的纹理具有平行的凹槽和脊。 电池还包括金属化区域，用于收集所产生的电载体并使其远离，这可以是通道。 在生产期间考虑地形，使用利用地形的过程来管理将接收特定处理的位置，以及哪些位置将不会接收到这样的处理。 将液体直接处理到细胞的区域。 他们迁移到整个区域，并对所联系的地点采取行动。 它们不会迁移到其他区域，因为阻碍流体流动，这是表面纹理的特征，例如边缘，壁和脊。 封闭液体也可以沉积并在区域内迁移，以阻挡或掩盖随后的活动，例如蚀刻。

    Binder composition for use in three dimensional printing
    8.
    发明授权
    Binder composition for use in three dimensional printing 失效
    用于三维印刷的粘合剂组合物

    公开(公告)号：US5660621A

    公开(公告)日：1997-08-26

    申请号：US581319

    申请日：1995-12-29

    申请人： James F. Bredt

    发明人： James F. Bredt

    IPC分类号： B29C41/00 ,  B29C67/00 ,  B41M3/16 ,  C04B22/06 ,  C09D1/00 ,  C09D1/04 ,  C09D7/12

    CPC分类号： B41M3/16 ,  B29C41/003 ,  B29C67/0077 ,  Y10S264/72

    摘要： A binder composition for three dimensional printing of parts is disclosed which is stable during storage and passage through a printhead, yet able to gel under the conditions existing in a powder bed. The binder composition comprises colloidal silica, a catalyst able to promote gelation of the composition when the composition is below a predetermined pH value, and a base able to maintain the pH of the composition above the predetermined value at which the composition gels. Preferably, the catalyst is polyethylene glycol or another ethylene oxide-derived polymer, and the base is triethanolamine. Upon impact with a powder bed, the pH of the binder composition is reduced, as by adding an acid such as citric acid to the powder, thereby causing the binder to gel in the powder.

    摘要翻译： 公开了用于三维印刷部件的粘合剂组合物，其在储存和通过打印头期间是稳定的，但是能够在存在于粉末床中的条件下凝胶化。 粘合剂组合物包括胶体二氧化硅，当组合物低于预定pH值时能够促进组合物凝胶化的催化剂，以及能够将组合物的pH保持在组合物凝胶凝固的预定值以上的碱。 优选地，催化剂是聚乙二醇或另一种环氧乙烷衍生的聚合物，碱是三乙醇胺。 当与粉末床撞击时，通过向粉末中加入酸如柠檬酸，粘合剂组合物的pH降低，从而使粘合剂在粉末中凝胶化。