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    • 4. 发明授权
    • Splice joint and process for joining a microstructured optical fiber and a conventional optical fiber
    • 用于接合微结构光纤和常规光纤的接头接头和工艺
    • US06652163B2
    • 2003-11-25
    • US10004375
    • 2001-10-31
    • James C. FajardoMichael T. GallagherQi Wu
    • James C. FajardoMichael T. GallagherQi Wu
    • G02B6255
    • G02B6/2551G02B6/02347
    • An optical splice joint and splicing process are provided for joining an end portion of a microstructured optical fiber having a microstructure formed from an array of holes, and a conventional optical fiber. The optical splice joint is formed from a fused portion of opposing end portions of the microstructured optical fiber and optical fiber, wherein the microstructured optical fiber is surrounded by a jacket that is at least 1.6 times thicker along its radius than the microstructure, and has a tensile strength of at least 30 Kpsi with an optical loss of less than 0.30 dB, and relatively little shrinkage (i.e., about 30%) of the holes forming the microstructure. The splice joint is formed by aligning end portions of the microstructured optical fiber and the optical fiber, in a fusion splicer, and applying fusion heat to the fiber ends in a two step process with a low current arc that is offset with respect to the end of the microstructured optical fiber.
    • 提供了一种光接头接合和接合方法,用于连接具有由孔阵列形成的微结构的微结构光纤的端部和常规的光纤。 光接头由微结构化光纤和光纤的相对端部的熔融部分形成,其中微结构化光纤被围绕其半径大于微结构的1.6倍的护套包围,并具有 拉伸强度至少为30Kpsi,光损耗小于0.30dB,形成微结构的孔的收缩率相对较小(即约30%)。 接合接头通过将微结构化光纤和光纤的端部对准在熔接机中形成,并且以两步法对光纤端部施加融合热,该电流电弧相对于端部偏移 的微结构光纤。
    • 8. 发明授权
    • Constant displacement dual position cam stop assembly
    • 恒定位置双位置凸轮停止组件
    • US4714235A
    • 1987-12-22
    • US873005
    • 1986-06-16
    • Cal R. BrownMichael T. GallagherPeter C. Williams
    • Cal R. BrownMichael T. GallagherPeter C. Williams
    • F16K35/00F16K5/06F16K37/00F16K51/00
    • F16K5/0647Y10T74/2063Y10T74/2101Y10T74/2102
    • A dual position handle and cam stop assembly is provided which is adapted for limiting rotational movement of an associated valve sealing element such as a ball for a ball valve. However, the assembly is applicable to other types of valves such as butterfly and plug valves. The assembly comprises a cam disc and a valve handle having associated first and second handle stop and direction indicators. The indicators are disposed relative to the cam disc for engagement against the disc at first and second handle stop limit locations, respectively. The locations are selectively positionable by rotation of the cam disc while maintaining a constant relative angular spacing for limiting the rotational movement of the valve handle to the constant relative angular spacing. The cam disc has a cardioid-like contour about its peripheral wall for a constant angular displacement of the stop limit locations per a unit degree of cam rotation. The handle stop and direction indicators preferably comprise a symmetrical flat-faced cam follower.
    • 提供了一种双位置手柄和凸轮停止组件,其适于限制相关联的阀密封元件(例如用于球阀的球)的旋转运动。 然而,该组件适用于其他类型的阀,例如蝶阀和旋塞阀。 组件包括凸轮盘和具有关联的第一和第二手柄止动件和方向指示器的阀手柄。 指示器相对于凸轮盘布置,用于分别在第一和第二手柄停止极限位置处与盘接合。 这些位置可以通过凸轮盘的旋转选择性地定位,同时保持恒定的相对角度间隔,以将阀把手的旋转运动限制为恒定的相对角度间隔。 凸轮盘围绕其周围壁具有心形状轮廓,用于每单位凸轮旋转程度的停止极限位置的恒定角位移。 手柄停止和方向指示器优选地包括对称的平面凸轮从动件。
    • 9. 发明授权
    • Ball valve and seat assembly
    • 球阀和座椅总成
    • US4660591A
    • 1987-04-28
    • US876513
    • 1986-06-26
    • Cal R. BrownMichael T. GallagherRichard F. WozniakPeter C. Williams
    • Cal R. BrownMichael T. GallagherRichard F. WozniakPeter C. Williams
    • F16K5/06F16K23/00
    • F16K5/0678Y10T137/5762
    • A ball valve is disclosed having an improved seat ring particularly adapted for sealing a ball member in an end-loaded or top-loaded valve body. The ball is mounted for selective rotation and limited axial movement in a valve body passageway. The seat rings are disposed on diametrically opposite sides of the ball about valve inlet and outlet openings. Frusto-conical disc springs interposed between each seat ring and an associated valve body shoulder urge the seat rings into engagement with the ball. A rigid reinforcing ring is disposed intermediate of the flexible seat ring for integral movement with the seat ring and for reinforcing the seat ring against collapse under pressure. The reinforcing ring is received in an annular channel about the periphery of the seat ring and preferably comprises a split metal ring in a stressed and expanded condition.
    • 公开了一种具有改进的座环的球阀,特别适用于在端部装载或顶装阀体中密封球构件。 球安装成用于选择性旋转并且在阀体通道中限制轴向运动。 座圈围绕阀入口和出口开口设置在球的径向相对侧上。 插入在每个座圈和相关联的阀体肩部之间的截头圆锥形弹簧推动座圈与球接合。 刚性加强环设置在柔性座环的中间,用于与座圈一体地运动,并用于在压力下抵抗塌陷来加强座圈。 加强环被容纳在围绕座环的周边的环形通道中,并且优选地包括处于应力和膨胀状态的裂开的金属环。