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    • 4. 发明授权
    • Ceiling fan display
    • 吊扇显示
    • US07374138B2
    • 2008-05-20
    • US10739080
    • 2003-12-19
    • John C. Marshall
    • John C. Marshall
    • F16M13/00
    • A47F7/00
    • The ceiling fan display comprises a stand having a vertical support with a horizontal support base extending from the bottom of the vertical support, and a horizontal support arm extending from the top of the vertical support. The ceiling fan is disposed at the distal end of the horizontal support arm. The horizontal support base is comprised of structural members that extend outward from the vertical support to form a “T” shaped outline. Boxes of the displayed ceiling fans may be stacked on the horizontal support base as a part of the sales display.
    • 吊扇显示器包括具有垂直支撑件的支架,其具有从垂直支撑件的底部延伸的水平支撑基座以及从垂直支撑件的顶部延伸的水平支撑臂。 吊扇设置在水平支撑臂的远端。 水平支撑基座由从垂直支撑件向外延伸以形成“T”形轮廓的结构构件组成。 显示的吊扇的盒可以作为销售显示的一部分堆叠在水平支撑基座上。
    • 9. 发明授权
    • Up-hole pump-in core barrel apparatus
    • 上钻泵芯机
    • US06425449B1
    • 2002-07-30
    • US09779258
    • 2001-02-08
    • John C. Marshall
    • John C. Marshall
    • E21B2502
    • E21B25/02E21B23/08
    • The drilling apparatus includes a wire line core barrel head assembly that has a latch body seatable on a drill string landing shoulder and retained in a latch seated position by a latch assembly spring urged to a latch seated position, fluid seals on the latch body to facilitate fluidly propelling the head assembly in an upward direction, valve mechanism in a latch body bypass channel to restrict fluid flow therethrough to provide a signal of the latch body seating on the landing shoulder and then opening together with being retractable to an open position by a latch retractor prior to the latch body being retracted and second valve mechanism to block axial outward flow in the bypass channel. The fluid seals are mounted to a latch body adaptor that may be removed to convert from an up-hole to a down-hole assembly.
    • 该钻孔装置包括一个线芯筒筒头组件,其具有可锁定在钻柱着陆台肩上的闩锁体,并且通过被推到闩锁就位位置的闩锁组件弹簧保持在闩锁就位位置,以便于锁闩本体上的流体密封 在头部组件向上方向上流动地推动头部组件,阀机构处于闩锁体旁路通道中,以限制流体流过其中,以提供锁定体位于着陆台肩上的信号,然后通过闩锁可伸缩到打开位置 在闩锁体缩回之前的牵开器和第二阀机构阻止旁路通道中的轴向向外流动。 流体密封件安装到闩锁体适配器,其可以被去除以从上孔转换成井下组件。