Retrievable oil and or gas well blowout preventer
    2.
    发明授权
    Retrievable oil and or gas well blowout preventer 失效
    可回收的油气井防喷器

    公开(公告)号:US07431079B1

    公开(公告)日:2008-10-07

    申请号:US11121725

    申请日:2005-08-01

    申请人: Manuel Chavez

    发明人: Manuel Chavez

    IPC分类号: E21B33/12

    CPC分类号: E21B34/063 E21B33/06

    摘要: A well blowout prevention apparatus that can be inserted into the well bore of a subterranean well, to confine fluid in the well when the fluid experiences or exerts a pressure surge, is described. Methods of using the well blowout prevention apparatus are also described. The apparatus is adapted to be manipulated from above by a pipe-string or other instrument, to readily disengage from the inner well casing wall, and to be retrievable from inside the well bore.

    摘要翻译: 描述了一种可以插入地下井的井眼中的井喷预防装置,以在流体经历或施加压力波动时将流体限制在井中。 还描述了使用井喷防止装置的方法。 该装置适于通过管柱或其他仪器从上方操纵,以便容易地从内井套管壁脱离,并可从井眼内部回收。

    ELEVATED PASSENGER SEATS FOR VEHICLES
    6.
    发明公开

    公开(公告)号:US20240217395A1

    公开(公告)日:2024-07-04

    申请号:US18219653

    申请日:2023-07-08

    IPC分类号: B60N2/01 B60N3/06 B60R7/04

    CPC分类号: B60N2/01 B60N3/063 B60R7/043

    摘要: An elevated seat structure for a row of rear passengers in a vehicle, the elevated seat structure includes a rigid support structure designed to be fastened to a floor of a vehicle and a passenger seat assembly to be attached to the top of the rigid support structure. A height of the rigid support structure is predetermined to provide an elevated rear passenger seat that is elevated relative to a passenger seat located in front of a row of rear passengers, the elevated rear passenger seat thereby providing a rear passenger a forward view through a front windshield of the vehicle that is elevated relative to a passenger sitting in front of the rear passenger.