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    • 8. 发明申请
    • Drill bit having an improved seal and lubrication method using same
    • 钻头采用改进的密封和润滑方法
    • US20050109544A1
    • 2005-05-26
    • US10717742
    • 2003-11-20
    • Thomas RayJames Boyce
    • Thomas RayJames Boyce
    • E21B10/22E21B10/25E21B10/00
    • E21B10/25
    • A drill bit (100) for drilling a wellbore that traverses subterranean formations includes a drill bit body (106) having a plurality of journal pins (112), each having a bearing surface (128), and a rotary cutter (104) rotatably mounted on each journal pin (112), each rotary cutter (104) including a bearing surface (126). A pressure-compensated reservoir (130) is in fluid communication with the bearing surfaces (126, 128) and has a lubricant therein. A seal element (144) is positioned between each journal pin (112) and rotary cutter (104) and retains the lubricant in the bearing surfaces (126, 128). The seal element (144) is formed from a nanocomposite material including a polymer host material and a plurality of nanostructures.
    • 用于钻穿穿过地下地层的井筒的钻头(100)包括钻头体(106),钻头体(106)具有多个轴颈销(112),每个轴承销具有支承表面(128)和旋转切割器(104) 在每个轴颈销(112)上,每个旋转切割器(104)包括轴承表面(126)。 压力补偿储存器(130)与支承表面(126,128)流体连通并且在其中具有润滑剂。 密封元件(144)定位在每个轴颈销(112)和旋转切割器(104)之间,并将润滑剂保持在轴承表面(126,128)中。 密封元件(144)由包括聚合物主体材料和多个纳米结构的纳米复合材料形成。
    • 10. 发明申请
    • Radiation-shielding container
    • 防辐射容器
    • US20070129591A1
    • 2007-06-07
    • US11296242
    • 2005-12-07
    • Paul YankeMatthew MacurBrian SchaberThomas Ray
    • Paul YankeMatthew MacurBrian SchaberThomas Ray
    • G21F9/00G21F1/00A61M5/32
    • A61M5/1785G21F5/018G21Y2002/30G21Y2004/30
    • A radiation-shielding container for storing a syringe includes a body assembly and a cap assembly securable to the body assembly such that first and second chamber portions define a chamber for storing the syringe. The body assembly includes a body shield formed of radiation shielding material, a body shell that defines a first cavity having an open end for receiving the body shield and defines a first chamber portion for receiving a portion of the syringe, wherein an inner wall of the body shell separates the first cavity and the first chamber portion, and a body plug secured to the body shell to cover the open end of the first cavity and retain the body shield within the first cavity. The cap assembly includes a cap shield formed of radiation shielding material, a cap shell that defines a second cavity having an open end for receiving the cap shield and defines a second chamber portion for receiving a portion of the syringe, wherein an inner wall of the cap shell separates the second cavity and the second chamber portion, and a cap plug secured to the cap shell to cover the open end of the second cavity and retain the cap shield within the second cavity.
    • 用于存储注射器的辐射屏蔽容器包括主体组件和可组装到主体组件上的盖组件,使得第一和第二室部分限定用于存储注射器的腔室。 身体组件包括由辐射屏蔽材料形成的身体护罩,身体壳体,其限定具有用于接收身体护罩的开口端的第一腔体,并且限定用于容纳注射器的一部分的第一腔室部分,其中, 主体壳体分离第一腔体和第一腔室部分,以及主体塞子,其固定到主体壳体以覆盖第一腔体的开口端并将身体护罩保持在第一腔体内。 盖组件包括由辐射屏蔽材料形成的盖屏蔽,帽壳限定具有用于接收盖罩的开口端的第二腔,并限定用于容纳注射器的一部分的第二腔室部分,其中, 帽壳分离第二腔体和第二腔室部分,以及帽塞,其固定到盖壳体以覆盖第二腔体的开口端并将盖罩保持在第二腔体内。