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    Expandable centralizer for expandable pipe string
    11.
    发明授权
    Expandable centralizer for expandable pipe string 有权
    可扩展管柱的可扩展扶正器

    公开(公告)号：US08196654B2

    公开(公告)日：2012-06-12

    申请号：US13019084

    申请日：2011-02-01

    申请人： Jean Buytaert ,  Eugene Edward Miller ,  Donald Elwin McDowell

    发明人： Jean Buytaert ,  Eugene Edward Miller ,  Donald Elwin McDowell

    IPC分类号： E21B17/10

    CPC分类号： E21B17/10 ,  E21B17/1028

    摘要： A close-tolerance expandable bow spring centralizer 8 having a first expandable collar 10A coupled to and spaced apart from a second expandable collar 10B through a plurality of bow springs 30 wherein expandable collars 10A, 10B comprise a plurality of slidably coupled links 16 that separate to expand the diameter of the collars 10A, 10B, e.g., upon expansion of an expandable pipe string 80 on which the centralizer 8 is received. Expandable bow spring centralizer 8 may grip the expandable pipe string 80 when in the collapsed configuration to eliminate the need for a stop collar. Additionally or alternatively, a fin 32 may be connected to each bow spring 30, and then connected to one or more adjacent fins 32 upon collapse of the bow springs 30 to form a restraining band 39 that may be ruptured, e.g., upon expansion of the expandable pipe string 80.

    摘要翻译： 具有通过多个弓形弹簧30联接到第二可膨胀轴环10B并与第二可膨胀轴环10B间隔开的第一可膨胀轴环10A的紧公差可伸缩弓形弹簧对中器8，其中可伸缩轴环10A，10B包括多个可滑动连接的连杆16， 扩大套环10A，10B的直径，例如，在其上接收有扶正器8的可膨胀管柱80的膨胀时。 可膨胀的弓形弹簧扶正器8可在处于折叠构型时夹紧可膨胀管柱80，以消除对止动环的需要。 附加地或替代地，翅片32可以连接到每个弓形弹簧30，然后在弓形弹簧30折叠时连接到一个或多个相邻的翅片32，以形成可能破裂的限制带39，例如在膨胀时 可膨胀管柱80。

    Armature for a receiver
    20.
    发明授权
    Armature for a receiver 有权
    接收器的电枢

    公开(公告)号：US08027492B2

    公开(公告)日：2011-09-27

    申请号：US12237731

    申请日：2008-09-25

    申请人： Thomas Edward Miller

    发明人： Thomas Edward Miller

    IPC分类号： H04R25/00 ,  H04R9/08

    CPC分类号： H04R11/02 ,  H04R25/00 ,  H04R31/00 ,  H04R2209/024

    摘要： An armature for a receiver comprising a first and a second leg portion each having a thickness and a width and connected to each other, and a connection portion in communication with the first and second leg portions. The connection portion has a width greater than the width of the first and second leg portions individually. The connection portion reduces the stiffness of the armature and minimizes magnetic reluctance of the connection between the first and second leg portions. According to one aspect of the invention, the first and second leg portions are integrally formed with the connection portion and the connection portion includes a least a portion having a thickness less than the thickness of the first and second leg portions individually to reduce the stiffness of the armature. According to another aspect of the invention, the first and second leg portions are separately formed and attached to the connection portion in a way that reduces the stiffness of the armature.

    摘要翻译： 一种用于接收器的电枢，包括每个具有厚度和宽度并彼此连接的第一和第二腿部，以及与第一和第二腿部连通的连接部分。 连接部分具有大于第一和第二腿部的宽度的宽度。 连接部分减小电枢的刚度并使第一和第二腿部之间的连接的磁阻最小化。 根据本发明的一个方面，第一和第二腿部与连接部分一体地形成，并且连接部分包括至少一个具有小于第一和第二腿部的厚度的厚度的部分，以减小刚度 电枢。 根据本发明的另一方面，第一和第二腿部分别形成并以降低电枢刚度的方式附接到连接部分。