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    • 4. 发明授权
    • Torque wrench apparatus and method for making and breaking joints
    • 扭力扳手装置及接头断裂方法
    • US09546526B2
    • 2017-01-17
    • US14840919
    • 2015-08-31
    • Xuejun LiChen LiuJie Cui
    • Xuejun LiChen LiuJie Cui
    • E21B19/16
    • E21B19/163
    • A torque wrench apparatus comprises a top wrench, a bottom wrench, and a middle wrench. The top and bottom wrenches are configured such that either one of them rotates a first joint in a first direction, and the middle wrench is configured to rotate a second joint in a second direction opposite the first direction; or the top and bottom wrenches are configured such that either one of them immobilizes a first joint, and the middle wrench is configured to rotate a second joint in a first direction; or the middle wrench is configured to immobilize a first joint, and the top and bottom wrenches are configured such that either one of them rotates a second joint in a second direction opposite the first direction. A method for making and breaking joints with the apparatus is also introduced.
    • 扭矩扳手装置包括顶扳手,底扳手和中间扳手。 顶部和底部扳手构造成使得它们中的任一个在第一方向上旋转第一接头,并且中间扳手构造成沿与第一方向相反的第二方向旋转第二接头; 或者顶部和底部扳手构造成使得它们中的任一个固定第一接头,并且中间扳手构造成沿第一方向旋转第二接头; 或所述中间扳手被构造成固定第一接头,并且所述顶部和底部扳手构造成使得它们中的任一个在与第一方向相反的第二方向上旋转第二接头。 还介绍了一种用于制造和断开该装置的接头的方法。
    • 9. 发明申请
    • Safety needle holder
    • 安全针架
    • US20070060937A1
    • 2007-03-15
    • US11213758
    • 2005-08-30
    • Chen Liu
    • Chen Liu
    • A61B17/34
    • A61M37/0076
    • A safety needle holder for eye or body tattooing purpose that provides reliable operation of the needle, prevents the needle from falling out of its place, and avoids backflow of colorant is comprised of an upper holder containing a transmission shaft, a lower holder containing a needle, and a central holder connecting both of the upper and the lower holders; two flat sections being each made at where approaching both ends of the needle; two resilient members being each inserted to where above and beneath both flat sections; a sleeve being inserted to the lower end of the lower holder; and the needle being exposed out of the sleeve.
    • 用于眼睛或身体纹身目的的安全针保持器,其提供针的可靠操作,防止针脱离其位置,并且避免着色剂回流由包含传动轴的上保持器,包含针的下保持器 和连接两个上部和下部支架的中心支架; 在接近针的两端处的两个平面部分; 两个弹性构件各自插入到两个平坦部分的上方和下方; 套筒被插入到下支架的下端; 针头露出套筒。