知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

43 records (took 0.015 seconds)

    Umbrella handle
    1.
    发明授权
    Umbrella handle 失效
    伞柄

    公开(公告)号：US5080118A

    公开(公告)日：1992-01-14

    申请号：US494230

    申请日：1990-03-15

    Applicant: James H. Allen

    Inventor： James H. Allen

    IPC: A45B9/02

    CPC classification number: A45B9/02

    Abstract: An umbrella with a carrying strap retractable interiorly of the umbrella's handle to a storage position when use of the strap is not desired, and extendable exteriorly of the handle into a use position when it is desired to carry the umbrella with aid of the strap.

    Abstract translation: 在不期望使用带的情况下，将伞把手的内部伸缩到收纳位置的伞带，并且当需要借助于带子而携带伞时，能够在把手的外部伸展到使用位置。

    Large diameter drill bit
    5.
    发明授权
    Large diameter drill bit 失效
    大直径钻头

    公开(公告)号：US4105083A

    公开(公告)日：1978-08-08

    申请号：US804881

    申请日：1977-06-09

    Applicant: James H. Allen

    Inventor： James H. Allen

    IPC: E21B10/18 ,  E21B10/44 ,  E21B12/06 ,  E21C13/02

    CPC classification number: E21B12/06 ,  E21B10/18 ,  E21B10/44

    Abstract: A drill bit is disclosed for drilling large diameter shafts. The drill bit comprises a main bit body having a plurality of rolling cutters rotatively mounted thereon. The cutters function to contact and disintegrate the earth formations at the bottom of the shaft thereby creating rock chips or cuttings. Water or drilling mud is pumped down the shaft and across the face of the main bit body for cooling the drill bit and for flushing the chips away from the shaft bottom. An auxiliary flow enhancer is attached beneath the main bit body for increasing the radial flow velocity of the drilling mud across the face of the bit body in order to remove the chips more efficaciously. The flow enhancer comprises a shaft mounted impeller such as a screw conveyor, a spiral brush, or a paddle-blade configuration. The shaft of each device is attached radially on the main bit body with each shaft having a drive wheel mounted thereon adjacent the bit body periphery. A radial flexible skirt extending to the hole bottom is attached beneath the main bit body on the trailing side of the flow enhancer in order to create a channel for the fluid flow. The drive wheel is adapted to contact and ride on the shaft bottom in order to drivingly rotate the conveyor, brush or paddle-blade, which in turn imparts a driving force on the drilling fluid along the flow channel.

    Abstract translation: 公开了一种用于钻出大直径轴的钻头。 钻头包括具有可旋转地安装在其上的多个滚动切割器的主钻头体。 切割器的功能是在轴的底部接触和分解地层，从而产生岩石碎屑或碎屑。 水或钻井泥浆沿着轴和主钻头体的表面被泵送，用于冷却钻头并将芯片从​​轴底部冲出。 辅助流动增强器附接在主钻头主体下面，以增加钻头泥浆穿过钻头体的表面的径向流速，以更有效地移除切屑。 流动增强器包括轴安装的叶轮，例如螺旋输送机，螺旋刷或桨叶构造。 每个装置的轴径向地附接在主钻头体上，每个轴具有安装在其上的钻头体周边上的驱动轮。 延伸到孔底部的径向柔性裙部连接在流动增强器的后侧上的主钻头体的下方，以便形成用于流体流动的通道。 驱动轮适于接触和骑在轴底部，以便驱动地旋转输送机，刷子或桨叶，其又沿着流动通道对钻井液施加驱动力。

    Big hole bit
    10.
    发明授权
    Big hole bit 失效
    大洞位

    公开(公告)号：US4125167A

    公开(公告)日：1978-11-14

    申请号：US803700

    申请日：1977-06-06

    Applicant: Robert F. Evans ,  James H. Allen

    Inventor： Robert F. Evans ,  James H. Allen

    IPC: E21B12/00 ,  E21B27/00 ,  E21B31/06 ,  E21C9/00 ,  E21C7/06

    CPC classification number: E21B31/06 ,  E21B12/00 ,  E21B27/00

    Abstract: A large diameter drill bit having a plurality of rolling cutters is provided with permanent magnets mounted on flexible flaps to collect magnetic debris on the bottom of a drill hole. A flap carrying a permanent magnet is mounted adjacent each cutter, or flaps carrying magnets are formed in a radially extending row to sweep the bottom of the hole as the bit rotates. In another form, magnets are included in wheels which roll on the bottom of the hole to collect the magnetic debris.

    Abstract translation: 具有多个滚动切割器的大直径钻头设置有安装在柔性翼片上的永磁体，以在钻孔的底部上收集磁性碎屑。 在每个切割器附近安装携带永磁体的翼片，或者在径向延伸的行中形成承载磁体的翼片，以在钻头旋转时扫过孔的底部。 在另一种形式中，磁体包括在滚轮的底部的孔中以收集磁性碎片。

Patent Agency Ranking