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    Length-based liquid-liquid extraction of carbon nanotubes using a phase transfer catalyst
    1.
    发明授权
    Length-based liquid-liquid extraction of carbon nanotubes using a phase transfer catalyst 失效
    使用相转移催化剂的基于长度的液 - 液萃取碳纳米管

    公开(公告)号：US07578941B2

    公开(公告)日：2009-08-25

    申请号：US11289000

    申请日：2005-11-29

    申请人： Kirk J. Ziegler ,  Daniel J. Schmidt ,  Robert H. Hauge ,  Richard E. Smalley ,  Irene Morin Marek, legal representative

    发明人： Kirk J. Ziegler ,  Daniel J. Schmidt ,  Robert H. Hauge ,  Richard E. Smalley

    IPC分类号： B01D11/02

    CPC分类号： B82Y30/00 ,  B82Y10/00 ,  B82Y40/00 ,  C01B32/172 ,  C01B32/174 ,  C01B2202/02 ,  C01B2202/28 ,  Y10S977/75 ,  Y10S977/845 ,  Y10S977/847

    摘要： The present invention is generally directed to new liquid-liquid extraction methods for the length-based separation of carbon nanotubes (CNTs) and other 1-dimensional nanostructures. In some embodiments, such methods are directed to separating SWNTs on the basis of their length, wherein such methods comprise the steps of: (a) functionalizing SWNTs to form functionalized SWNTs with ionizable functional moieties; (b) dissolving said functionalized SWNTs in a polar solvent to form a polar phase; (c) dissolving a substoichiometric (relative to the amount of ionizable functional moieties present on the SWNTs) amount of a phase transfer agent in a non-polar solvent to form a non-polar phase; (d) combining the polar and non-polar phases to form a bi-phase mixture; (e) adding a cationic donor species to the bi-phase mixture; and (f) agitating the bi-phase mixture to effect the preferential transport of short SWNTs into the non-polar phase such that the non-polar phase is enriched in short SWNTs and the polar phase is enriched in longer SWNTs. In other embodiments, analogous methods are used for the length-based separation of any type of CNT, and more generally, for any type of 1-dimensional nanostructure.

    摘要翻译： 本发明一般涉及用于碳纳米管（CNT）和其它一维纳米结构的基于长度的分离的新的液 - 液萃取方法。 在一些实施方案中，这样的方法涉及基于其长度分离SWNT，其中此类方法包括以下步骤：（a）使SWNT官能化形成具有可离子化功能部分的官能化SWNT; （b）将所述官能化的单壁碳纳米管溶解在极性溶剂中以形成极性相; （c）在非极性溶剂中将相转移剂的亚化学计量（相对于存在于SWNT上的可离子化官能团的量）量溶解以形成非极性相; （d）组合极性和非极性相以形成双相混合物; （e）向双相混合物中加入阳离子供体物质; 和（f）搅拌双相混合物以实现短的单壁碳纳米管优先转运到非极性相中，使得非极性相富集在短的单壁碳纳米管中，极性相富集较长的单壁碳纳米管。 在其它实施方案中，类似的方法用于任何类型的CNT的长度分离，更通常地，对于任何类型的一维纳米结构。

    Constant velocity joint retainer
    3.
    发明授权
    Constant velocity joint retainer 失效
    恒速接头保持架

    公开(公告)号：US6042479A

    公开(公告)日：2000-03-28

    申请号：US89680

    申请日：1998-06-03

    申请人： Michael Walter Hopson ,  Daniel J. Schmidt ,  Richard Seidel

    发明人： Michael Walter Hopson ,  Daniel J. Schmidt ,  Richard Seidel

    IPC分类号： F16D3/223 ,  F16D3/16

    CPC分类号： F16D3/223 ,  F16D2003/22303 ,  Y10S464/906

    摘要： A retaining ring and method of installation are provided to maintain the relative position of an inner joint to an outer joint in a constant velocity joint. The outer joint has an open end, a generally spherical internal surface with a plurality of ball grooves, and an annular groove formed in the internal surface near the open end of the outer joint. An annular ring with a radially extending tab is aligned within one of the ball grooves to axially align the tab with the annular groove. The annular ring is then rotatable within the annular groove to align the tab between two of the ball grooves. The annular ring is rotationally retained within the annular groove.

    摘要翻译： 提供保持环和安装方法以将内接头的相对位置保持在等速万向节中的外接头。 外接头具有开口端，具有多个球槽的大致球形的内表面和在外接头的开口端附近的内表面中形成的环形槽。 具有径向延伸突片的环形环在一个球槽内对齐，以使突片与环形槽轴向对准。 然后环形环可在环形槽内旋转，以将突片对准两个球槽之间。 环形圈旋转地保持在环形槽内。

    Helmet visor support apparatus
    4.
    发明授权
    Helmet visor support apparatus 失效
    头盔护目镜支架

    公开(公告)号：US5177816A

    公开(公告)日：1993-01-12

    申请号：US805281

    申请日：1991-12-10

    申请人： Daniel J. Schmidt ,  John D. Jacks

    发明人： Daniel J. Schmidt ,  John D. Jacks

    IPC分类号： A42B3/22

    CPC分类号： A42B3/221 ,  Y10S2/909

    摘要： Helmet visor support apparatus is provided which can move the visor between raised and a lowered position by the operation of one hand. The apparatus comprises a visor support arm pivotally attached to the helmet at a pivot point for moving the visor between the raised and lowered positions. A positioning means is attached to the helmet at the pivot point and has at least two bores corresponding to the raised and lowered visor positions. A locking pin retractably engages either one of the bores in the positioning means to lock the visor support arm in position. A spring coiled around the locking pin normally biases the locking pin in engagement with one of the bores. A manually activatable retracting means is attached to the locking pin for retracting the locking pin from the one of the bores upon being manually activated, thereby allowing the visor support arm to pivot. The retracting means is supported on the visor support arm between the two ends thereof and is positioned to be activated by manual movement away from the pivot point and towards the visor.

    摘要翻译： 提供了一种头戴护目镜支撑装置，其可以通过一只手的操作使遮阳板在升高和降低位置之间移动。 该装置包括在枢轴点处枢转地附接到头盔的护目镜支撑臂，用于在升高和降低位置之间移动遮阳板。 定位装置在枢轴点处附接到头盔，并且具有对应于升高和降低的遮阳板位置的至少两个孔。 锁定销可缩回地接合定位装置中的任一个孔以将面罩支撑臂锁定在适当位置。 围绕锁定销盘绕的弹簧通常将锁定销偏压与其中一个孔接合。 可手动激活的收回装置附接到锁定销，用于在手动启动时将锁定销从孔中的一个回缩，从而允许护目镜支撑臂枢转。 收缩装置支撑在其两端之间的面罩支撑臂上，并且通过手动移动远离枢转点并朝向遮阳板定位。