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52 条记录 (耗时 0.04 秒)

    Chemically specific patterning on solid surfaces using surface immobilized enzymes
    24.
    发明授权
    Chemically specific patterning on solid surfaces using surface immobilized enzymes 失效
    使用表面固定化酶在固体表面上进行化学特异性图案化

    公开(公告)号：US06001587A

    公开(公告)日：1999-12-14

    申请号：US841966

    申请日：1997-04-08

    申请人： David C. Turner ,  Bruce P. Gaber

    发明人： David C. Turner ,  Bruce P. Gaber

    IPC分类号： C12N11/00 ,  C12N11/02 ,  C12N11/14 ,  C12P1/00 ,  C12N11/08

    CPC分类号： C12N11/00 ,  C12N11/02 ,  C12N11/14 ,  Y10S977/857

    摘要： An immobilized substrate surface is chemically modified by manipulating annzyme which is immobilized to a solid surface. Modifications include (1) chemical dissection of a substrate surface such as by chemical hydrolysis, (2) chemical synthesis on a substrate surface, and (3) chemical patterning of a substrate surface. The enzyme may be coupled to colloidal beads or particles, locally flat solid surfaces including planar, textured planar, cylindrical and spherical surfaces or arbitrary predefined shapes, or scanning probe microscope probes. In the patterning applications, colloidal particles containing the enzyme can be confined to desired regions of the substrate surface by various techniques which control the movement of the particles. The particles can be confined to tunnels or channels in a patterned polymer mold on top of the substrate surface. The enzyme can also be immobilized onto the surface of a raised pattern and this patterned surface can then be placed in contact with the immobilized substrate.

    摘要翻译： 通过操作固定在固体表面上的酶来化学修饰固定的底物表面。 修饰包括（1）通过化学水解对基底表面进行化学解剖，（2）在基底表面上的化学合成，以及（3）基底表面的化学图案化。 酶可以与胶体珠或颗粒偶联，局部平坦的固体表面包括平面，纹理化的平面，圆柱形和球形表面或任意预定形状，或扫描探针显微镜探针。 在图案化应用中，含有酶的胶体颗粒可以通过控制颗粒运动的各种技术被限制在基材表面的所需区域中。 颗粒可以限制在衬底表面顶部上的图案化聚合物模具中的隧道或通道中。 该酶也可以固定在凸起图案的表面上，然后将该图案化的表面放置成与固定的基底接触。

    Circuit breaker with positive off protection
    25.
    发明授权
    Circuit breaker with positive off protection 失效
    断路器带正极保护

    公开(公告)号：US5296664A

    公开(公告)日：1994-03-22

    申请号：US976636

    申请日：1992-11-16

    申请人： Ronald W. Crookston ,  Douglas C. Marks ,  David C. Turner ,  Richard E. White, III ,  Steven Castelein

    发明人： Ronald W. Crookston ,  Douglas C. Marks ,  David C. Turner ,  Richard E. White, III ,  Steven Castelein

    IPC分类号： H01H71/50 ,  H01H23/00

    CPC分类号： H01H71/501 ,  Y10S200/42

    摘要： A positive off mechanism for a circuit breaker includes a pair of positive off levers slideable in slots in the side plates and extendable into the path of the operating handle to prevent movement of the handle to the off position when the contacts are welded closed. The positive off levers are actuated by positive off links pivotally mounted to the side plates and coupled to the positive off levers by "dog bone" connections. The positive off links in turn are actuated by the toggle mechanism of the circuit breaker which collapses to open the contacts during normal circuit breaker operation, but which remains erect when the contacts are welded closed.

    摘要翻译： 用于断路器的正断开机构包括一对可在侧板中的槽中滑动的正断开杆，并且可延伸到操作手柄的路径中以防止当触头被焊接封闭时手柄移动到关闭位置。 正向离合杆由枢转地安装到侧板的正断开连杆致动，并通过“狗骨”连接联接到正向离合杆。 正向断路器又由断路器的肘节机构致动，该断路器在正常的断路器操作期间塌缩以打开触点，但是当触头被焊接闭合时其保持直立。