Production of nonwoven fibrous webs including fibers with varying degrees of shrinkage
    1.
    发明授权
    Production of nonwoven fibrous webs including fibers with varying degrees of shrinkage 有权
    生产包括具有不同收缩程度的纤维的非织造纤维网

    公开(公告)号:US07504348B1

    公开(公告)日:2009-03-17

    申请号:US10214458

    申请日:2002-08-08

    IPC分类号: D04H1/00 D04H13/00 D04H5/00

    摘要: Nonwoven fibrous webs are formed including a first group and a second group of fibers, where fibers of the first group are imparted with a degree of shrinkage that differs from a degree of shrinkage imparted to fibers in the second group. During or after bonding of the web, the web may be subjected to heat treatment causing fibers in one of the groups to shrink a greater amount in comparison to fibers in the other group, resulting in nonwoven products with desired textures and other physical characteristics.

    摘要翻译: 形成非织造纤维网,其包括第一组和第二组纤维,其中第一组的纤维赋予与第二组中赋予纤维的收缩程度不同的收缩程度。 在幅材粘合期间或之后,纤维网可以进行热处理,导致其中一个组中的纤维与另一组中的纤维相比收缩更大的量,导致具有期望的纹理和其它物理特性的非织造产品。

    Swelling packer with overlapping petals
    2.
    发明授权
    Swelling packer with overlapping petals 有权
    膨胀封隔器与重叠的花瓣

    公开(公告)号:US07422071B2

    公开(公告)日:2008-09-09

    申请号:US11326212

    申请日:2006-01-05

    IPC分类号: E21B33/127

    CPC分类号: E21B33/1208

    摘要: A packer for downhole use features interacting elements of swelling material. Preferably the elements are in contact for relative movement from an initial diameter for run in. As the elements swell, they move with respect to each other to enlarge the diameter of the assembly so that a sealing contact is made. Each element exerts a residual force on the adjacent element to enhance the seal. Each element is preferably coated with a material that allows well fluids to reach the swelling material and then later to stiffen and become impervious from exposure to such fluids. The assembly can be covered for run in to delay the onset of expansion until the target depth is reached for the packer to be set.

    摘要翻译: 用于井下使用的封隔器具有膨胀材料的相互作用元件。 优选地,这些元件从用于移入的初始直径的相对运动接触。随着元件膨胀,它们相对于彼此移动以扩大组件的直径,从而形成密封接触。 每个元件在相邻元件上施加残余力以增强密封。 每个元件优选地涂覆有一种材料,其允许良好的流体到达膨胀材料,然后随后加强并且暴露于这种流体而变得不透水。 可以覆盖组件以延迟膨胀的开始,直到达到封隔器设定的目标深度。

    Singles carpet yarn
    5.
    发明授权
    Singles carpet yarn 失效
    单身地毯纱

    公开(公告)号:US4408446A

    公开(公告)日:1983-10-11

    申请号:US303655

    申请日:1981-09-18

    申请人: Arnold E. Wilkie

    发明人: Arnold E. Wilkie

    摘要: A bulky, heatset, tangled, twisted singles carpet yarn is provided having exceptional column strength and resistance to bending and untwisting. Cut pile produced therefrom has excellent tuft rigidity and endpoint definition. The yarn is produced by passing a bulked, twisted singles yarn through a chamber wherein the yarn is tangled and heatset with a heated fluid such as steam.

    摘要翻译: 提供了一种体积大,热固,缠结,扭曲的单纱地毯纱,具有卓越的柱强度和抗弯曲和解捻性能。 由此生产的切割绒头具有优异的绒头刚度和端点定义。 纱线是通过使一个膨化的扭曲的单纱穿过一个室,其中纱线被缠结并用加热的流体例如蒸汽加热。

    Melt spinning process for producing nylon 66 yarns
    6.
    发明授权
    Melt spinning process for producing nylon 66 yarns 失效
    用于生产尼龙66纱线的熔纺工艺

    公开(公告)号:US4228117A

    公开(公告)日:1980-10-14

    申请号:US11980

    申请日:1979-02-14

    IPC分类号: D01F6/60 B28B3/20

    CPC分类号: D01F6/60

    摘要: The productivity of the conventional melt spinning process for producing undrawn polyhexamethylene adipamide carpet and tire yarns is increased by utilizing a heat feed roll (e.g. 80.degree. C.) rather than an unheated feed roll and by eliminating the conventional steam conditioning of the yarn and the convergence guide(s) associated therewith.

    摘要翻译: 通过使用加热辊(例如80℃)而不是未加热的进料辊,并且通过消除常规的纱线的蒸汽调节和增加纱线的常规蒸汽调节,用于生产未拉伸聚己二酰己二胺地毯和轮胎纱线的常规熔融纺丝方法的生产率增加 与之相关的收敛指南。

    Methods and apparatus for controlling airflow in a fiber extrusion system
    7.
    发明授权
    Methods and apparatus for controlling airflow in a fiber extrusion system 有权
    用于控制纤维挤出系统中气流的方法和装置

    公开(公告)号:US07037097B2

    公开(公告)日:2006-05-02

    申请号:US10849495

    申请日:2004-05-20

    IPC分类号: D01D5/092

    CPC分类号: D01D5/092 D01D13/02 D04H3/02

    摘要: An apparatus for controlling airflow in a fiber extrusion process includes a fiber flow region between an inlet through which extruded fibers are received and an outlet through which the extruded fibers are discharged and at least one surface providing a boundary between the fiber flow region and another region, wherein the surface includes apertures permitting air to flow between the fiber flow region and the other region to control airflow at the outlet of the fiber flow region. The apparatus can include a housing which contains at least one chamber, with the surface forming a boundary between the fiber flow region and the chamber, such that the apertures permit air to flow between the fiber flow region and at the chamber. In a spunbond process, the airflow control device receives drawn filaments exiting an aspirator and deposits the filaments onto a web-forming surface with reduced air disturbance.

    摘要翻译: 用于控制纤维挤出方法中的气流的装置包括在挤出的纤维被容纳的入口和挤出的纤维被排出的出口之间的纤维流动区域和至少一个提供纤维流动区域和另一区域之间的边界的表面 ,其中所述表面包括允许空气在所述纤维流动区域和所述另一区域之间流动的孔以控制所述纤维流动区域的出口处的气流。 该装置可以包括壳体,该壳体包含至少一个腔室,该表面在纤维流动区域和腔室之间形成边界,使得孔口允许空气在纤维流动区域和腔室之间流动。 在纺粘工艺中,气流控制装置接收离开抽吸器的拉伸长丝,并将细丝沉积在具有降低的空气干扰的幅材形成表面上。

    Pigtail guide for staple spinning
    9.
    发明授权
    Pigtail guide for staple spinning 失效
    尾纤导丝用于短纤维纺纱

    公开(公告)号:US4604863A

    公开(公告)日:1986-08-12

    申请号:US695513

    申请日:1985-01-28

    IPC分类号: D01H13/04 D01H7/10

    CPC分类号: D01H13/04

    摘要: A specially designed pigtail balloon guide for use with ring spinning frames is provided. The guide improves the performance of such frames with respect to sliver breaks and/or sliver throughput. The guide has a single-looped coil through which the sliver is threaded. The coil is designed so that during operation of the frame the coil is tilted with respect to the path of the sliver.

    摘要翻译: 提供了一种专门设计的猪尾气球导轨,用于环锭纺纱机。 该指南改进了相对于条子断裂和/或条子吞吐量的这种框架的性能。 引导件具有单环线圈,纱线穿过线圈。 线圈被设计成使得在框架的操作期间线圈相对于条子的路径倾斜。

    Superconducting Wires and Cables and Methods for Producing Superconducting Wires and Cables
    10.
    发明申请
    Superconducting Wires and Cables and Methods for Producing Superconducting Wires and Cables 审中-公开
    超导电线和电缆及其生产超导电线和电缆的方法

    公开(公告)号:US20090258787A1

    公开(公告)日:2009-10-15

    申请号:US12413883

    申请日:2009-03-30

    IPC分类号: H01B12/02 H01L39/24 H01L39/00

    CPC分类号: H01L39/141 H01L39/2487

    摘要: A superconductor structure is manufactured by forming a channel within a substrate along a surface of the substrate, depositing a material within the channel of the substrate, where the material includes one of a superconductor material and a precursor for a superconductor material, and thermally treating the substance within the channel of the substrate so as to form an elongated superconductor wire formed as a single, cohesive structure. The substrate can further include a plurality of channels with superconductor wires formed within the channels. In addition, a cable is formed including a bundle of individual superconductor wires arranged at different spatial positions with respect to each other.

    摘要翻译: 通过沿衬底的表面在衬底内形成通道,在衬底的通道内沉积材料制造超导体结构,其中材料包括超导材料和超导体材料的前体之一,并且热处理 物质在衬底的通道内形成细长的超导线,其形成为单一的内聚结构。 衬底还可以包括多个通道,其中在通道内形成超导线。 此外,形成包括布置在彼此不同空间位置的单根超导体线束的电缆。