Polyethylene composition for large diameter pipe stability
    1.
    发明授权
    Polyethylene composition for large diameter pipe stability 有权
    聚乙烯组合物用于大直径管道稳定

    公开(公告)号:US09046196B2

    公开(公告)日:2015-06-02

    申请号:US13004315

    申请日:2011-01-11

    IPC分类号: D01F1/02 F16L9/127

    CPC分类号: F16L9/127

    摘要: Pipe articles and methods of forming the same are described herein. The methods generally include providing an ethylene based polymer; contacting the ethylene based polymer with a secondary stabilizer including a diphosphite to form a modified polyethylene; and forming the modified polyethylene into a pipe.

    摘要翻译: 本文描述了管件及其形成方法。 所述方法通常包括提供基于乙烯的聚合物; 使乙烯基聚合物与包含二亚磷酸酯的二级稳定剂接触以形成改性聚乙烯; 并将改性聚乙烯制成管。

    Amplification device utilizing thulium doped modified silicate optical fiber
    4.
    发明授权
    Amplification device utilizing thulium doped modified silicate optical fiber 失效
    利用掺doped改性硅酸盐光纤的放大器件

    公开(公告)号:US07245424B2

    公开(公告)日:2007-07-17

    申请号:US11151176

    申请日:2005-06-09

    IPC分类号: H01S3/00 H01S3/30 C03B37/075

    摘要: A device amplifies light at wavelengths in the vicinity of 1420-1530 nm, using thulium doped silica-based optical fiber. This wavelength band is of interest as it falls in the low-loss optical fiber telecommunications window, and is somewhat shorter in wavelength than the currently standard erbium doped silica fiber amplifier. The device thus extends the band of wavelengths which can be supported for long-distance telecommunications. The additional wavelength band allows the data transmission rate to be substantially increased via wavelength division multiplexing (WDM), with minimal modification to the standard equipment currently used for WDM systems. The host glass is directly compatible with standard silica-based telecommunications fiber. The invention also enables modified silicate based amplifiers and lasers on a variety of alternative transitions. Specifically, an S-band thulium doped fiber amplifier (TDFA) using a true silicate fiber host is described.

    摘要翻译: 器件利用ium掺杂的二氧化硅基光纤放大1420-1530nm附近波长的光。 该波长带在低损耗光纤通信窗口中是有意义的,并且其波长比当前标准的掺铒二氧化硅光纤放大器稍短。 因此,该装置延长了可被长距离通信支持的波长带。 附加波长带允许通过波分复用(WDM)大幅增加数据传输速率,对目前用于WDM系统的标准设备进行最小修改。 主机玻璃与标准的二氧化硅电信光纤直接兼容。 本发明还使得能够在各种替代转变上改性硅酸盐基放大器和激光器。 具体来说,描述了使用真硅酸盐纤维主体的S波段ium掺杂光纤放大器(TDFA)。

    SLEEVE ASSEMBLY
    5.
    发明申请
    SLEEVE ASSEMBLY 审中-公开

    公开(公告)号:US20070137976A1

    公开(公告)日:2007-06-21

    申请号:US11610756

    申请日:2006-12-14

    申请人: Brian Cole

    发明人: Brian Cole

    IPC分类号: F16D13/58

    摘要: A vehicle having a power unit and a drive train. The drive train is connected to the power unit. The drive train includes a transmission having a shaft and a clutch assembly connected to the transmission. The clutch assembly has a retaining structure and a sleeve. The sleeve is in contact with the retaining structure and the shaft extends through the sleeve. The sleeve includes a body and a ring removably attached to an outer surface of the body. The body has at least one internal substantially cylindrically shaped bearing surface. The body also has an outer surface and a first hardness. The ring has a second hardness different from the first hardness.

    摘要翻译: 具有动力单元和传动系的车辆。 传动系连接到动力单元。 传动系包括具有轴和与变速器连接的离合器组件的变速器。 离合器组件具有保持结构和套筒。 套筒与保持结构接触并且轴延伸穿过套筒。 套筒包括主体和可移除地附接到主体的外表面的环。 主体具有至少一个内部基本上圆柱形的轴承表面。 身体还具有外表面和第一硬度。 该环具有与第一硬度不同的第二硬度。

    Hollow core photonic band gap infrared fibers
    6.
    发明申请
    Hollow core photonic band gap infrared fibers 有权
    空心光子带隙红外光纤

    公开(公告)号:US20050025965A1

    公开(公告)日:2005-02-03

    申请号:US10632210

    申请日:2003-08-01

    摘要: This invention pertains to a hollow core photonic band gap chalcogenide optical glass fiber and to a fabrication method for making the fiber. The fiber, which is 80-1000 microns in outside diameter, is characterized by a solid glass circumferential region and a structured region disposed centrally within the solid region, the structured region includes a hollow core of 1 micron to several hundreds of microns in diameter surrounded by a plurality of parallel hollow capillaries extending parallel to the core, the core being centrally and longitudinally located within the fiber. Ratio of open space to glass in the structured region is 30-99%. The fabrication method includes the steps of providing a mold, placing chalcogenide micro-tubes around the mold, stacking chalcogenide micro-canes around the stacked micro-tubes, fusing the micro-tubes and the micro-canes to form a preform, removing the mold and drawing the preform to obtain the fiber. In an alternative fabrication method, the fiber is made by extruding flowing chalcogenide glass through suitably made plate to form a preform and then drawing the preform to form the fiber.

    摘要翻译: 本发明涉及中空光子带隙硫族化物光学玻璃纤维及其制造方法。 外径为80-1000微米的纤维的特征在于固体玻璃圆周区域和设置在固体区域中心的结构区域,该结构区域包括直径为1微米至几百微米的中空芯体 通过平行于芯部延伸的多个平行的中空毛细管,芯部居中并且纵向位于纤维内。 结构区域的开放空间与玻璃的比例为30-99%。 该制造方法包括以下步骤:提供模具,将硫族化物微管放置在模具周围,在堆叠的微管周围堆放硫族化物微型手杖,将微管和微型手杖融合以形成预成型件,移除模具 并拉制预制件以获得纤维。 在替代的制造方法中,纤维通过将流动的硫族化物玻璃通过适当制成的板挤出以形成预成型件然后拉伸预制件以形成纤维而制成。

    Apparatus for exercising the muscles of the lumbar region of the back
    7.
    发明授权
    Apparatus for exercising the muscles of the lumbar region of the back 失效
    用于锻炼背部腰部区域的肌肉的装置

    公开(公告)号:US06746384B2

    公开(公告)日:2004-06-08

    申请号:US09835633

    申请日:2001-04-16

    IPC分类号: A63B2100

    摘要: An apparatus for exercising the muscles of the lumbar region of a subject's back includes a seat, a vertical support member to which the back end of the seat is attached so that the centerline extending from the from the front to the back of the seat forms an angle with the vertical member in the range of 65 to 75 degrees and with the front end of the seat being inclined downward to the surface on which the vertical support member stands, a base attached to the bottom end of the vertical support member, a cylindrical roller pad that is rotatably mounted to the vertical support member at a position above the seat, a knob that is adjustably mounted to the vertical support member, and a hand-held weight which the subject grasps and holds near the subject's body while performing the strengthening exercises. In a first embodiment, these entail the subject sitting on the seat and assuming a first position with subject's upper torso bent over so as to be proximate the thighs and a hand-held weight grasped and held near the subject's chest. The subject then moves to a second position by raising the upper torso while continuing to hold the hand-held weight near the subject's chest and keeping the pelvis and sacrum in contact with the pad. A preferred angular range of motion of the subject's back while so exercising is approximately seventy-two degrees. In a second embodiment, the exercises entail the subject standing with a hand-held weight near the hip and with the sacrum against the knob so as to keep the hips and pelvis from moving while the subject does lateral, upper body bending exercises.

    摘要翻译: 用于锻炼受试者背部的腰部区域的肌肉的装置包括座椅,垂直支撑构件,座椅的后端附接到座椅,使得从座椅的前部延伸到后座的中心线形成一个 与垂直构件的角度在65至75度的范围内,并且座椅的前端向下倾斜到垂直支撑构件所在的表面,附接到垂直支撑构件的底端的基部,圆柱形 滚轮垫,其可旋转地安装在垂直支撑构件上方的座位上方,可调节地安装在垂直支撑构件上的手柄和手持重物,该对象在被检体的身体附近被抓住并保持,同时进行加强 练习 在第一实施例中,这些要求使被摄体坐在座位上,并且假设第一位置,其中被检体的上身弯曲以便靠近大腿,并且握持并保持在被检者胸部附近的手持重物。 然后通过抬起上身进行主体移动到第二位置,同时继续将手持重物保持在被检者胸部附近并保持骨盆和骶骨与垫接触。 受试者背部运动的优选角度范围大约为七十二度。 在第二实施例中,练习需要用臀部附近的手持重物和骶骨抵靠旋钮站立,以保持臀部和骨盆不移动,同时受试者进行横向,上身弯曲锻炼。

    Multi heating zone apparatus and process for making core/clad glass fibers
    9.
    发明授权
    Multi heating zone apparatus and process for making core/clad glass fibers 有权
    多层加热区设备及制造核心/复合玻璃纤维的工艺

    公开(公告)号:US07197899B2

    公开(公告)日:2007-04-03

    申请号:US10339255

    申请日:2003-01-06

    IPC分类号: C03B37/075

    摘要: A process includes the steps of disposing a solid core glass rod at a point removed from hot temperature that can cause crystallization in the core glass rod, disposing a solid clad glass rod at a point removed from the core glass rod; softening to the flowing condition the solid clad glass rod, transferring the softened clad glass to a lower point, the softened clad glass having a central void therethrough, heating the softened clad glass above its crystallization temperature, cooling the softened clad glass to a draw temperature, transferring the solid core glass rod into the central void in the softened glad glass, softening to the flowing condition the solid core glass rod with the heat from the softened and cooled clad glass, and drawing the core/clad, glass fiber by allowing the clad and core glasses to flow in the form of a fiber.

    摘要翻译: 一种方法包括以下步骤:将固体芯玻璃棒放置在可以在芯玻璃棒中引起结晶的热温度的位置处,将固体包覆玻璃棒设置在从芯玻璃棒上移除的点上; 软化到流动条件下的固体包覆玻璃棒,将软化的包覆玻璃转移到较低点,软化的包覆玻璃具有通过其中心的空隙,将软化的包覆玻璃加热到其结晶温度以上,将软化的包覆玻璃冷却至拉伸温度 将固体芯玻璃棒转移到软化玻璃中的中心空隙中,用软化和冷却的复合玻璃的热量将固体芯玻璃棒软化成流动状态,并通过允许将芯/玻璃纤维 包芯和芯玻璃以纤维的形式流动。