System and method for feedback control of an absorbent core manufacturing process
    1.
    发明授权
    System and method for feedback control of an absorbent core manufacturing process 有权
    吸收芯制造过程的反馈控制系统和方法

    公开(公告)号:US06689416B2

    公开(公告)日:2004-02-10

    申请号:US10054951

    申请日:2002-01-25

    CPC classification number: A61F13/15772 A61F13/15658

    Abstract: A system and a method for providing feedback control of the deposition of superabsorbent particles into an absorbent core at a specified rate are disclosed herein. A control system, such as a programmable logic control device, is used to receive feedback related to the operation of one or more elements of a vibratory feeder. Based on the feedback, the control system adjusts one or more elements of the vibratory feeder to synchronize the operation of the elements of the vibratory feeder. Particularly, the control system can be adapted to synchronize the deposition rate of superabsorbent particles into the absorbent core with the line speed of the absorbent core during ramp-up and ramp-down periods. Based on a predetermined line speed response during the ramp-up or ramp-down period, the control system can control one or more properties of the vibratory motion of a vibrator of the vibratory feeder in such a manner that the deposition rate of superabsorbent particles is proportional to the line-speed of the fibrous material being supplied so that a substantially uniform concentration of superabsorbent materials are deposited in the absorbent core during the ramp-up and ramp-down periods.

    Abstract translation: 本文公开了一种用于提供以特定速率将超吸收剂颗粒沉积到吸收芯中的反馈控制的系统和方法。 诸如可编程逻辑控制装置的控制系统用于接收与振动给料器的一个或多个元件的操作有关的反馈。 基于反馈,控制系统调整振动进料器的一个或多个元件以使振动进料器的元件的操作同步。 特别地,控制系统可适于使超吸收颗粒在吸收芯中的沉积速率与吸收芯的线速度在斜坡上升和下降时间段期间同步。 基于在斜坡上升或下降时段期间的预定的线速度响应,控制系统可以以这样的方式控制振动给料器的振动器的振动运动的一个或多个特性,使得超吸收颗粒的沉积速率为 与被供应的纤维材料的线速度成比例,使得在斜坡上升和下降时段期间,基本上均匀的超吸收材料的浓度沉积在吸收芯中。

    System and method for dry forming absorbent cores
    2.
    发明授权
    System and method for dry forming absorbent cores 有权
    干式成型吸收芯的系统和方法

    公开(公告)号:US06832905B2

    公开(公告)日:2004-12-21

    申请号:US10046279

    申请日:2002-01-16

    Abstract: An apparatus and method for dry forming absorbent cores are disclosed. The apparatus has a rotatable drum having a substantially cylindrical surface. A vacuum surface having one or more holes is located substantially circumferentially around at least a portion of the substantially cylindrical surface. A vacuum chamber is located within the rotatable drum. The vacuum chamber has one or more vacuum passages forming a vacuum zone subadjacent at least a portion of the vacuum surface. A first casing sheet is supplied to overlie the vacuum surface at a first location, and a fibrous material is supplied to overlie the first casing sheet at a second location. A supply of particulate matter is deposited onto the fibrous material at a third location, and a second casing sheet is supplied to overlie the first casing sheet, fibrous material and particulate matter at a fourth location, thereby forming an absorbent core composite.

    Abstract translation: 公开了一种用于干式成型吸收芯的设备和方法。 该设备具有一个具有基本圆柱形表面的可旋转滚筒。 具有一个或多个孔的真空表面基本上围绕基本上圆柱形表面的至少一部分设置。 真空室位于可旋转的滚筒内。 真空室具有一个或多个真空通道,其形成在真空表面的至少一部分下方的真空区域。 在第一位置处提供第一外壳片以覆盖真空表面,并且在第二位置处供应纤维材料以覆盖第一外壳片材。 颗粒物质的供应在第三位置被沉积到纤维材料上,并且第二壳体片被提供以覆盖第四位置处的第一外壳片,纤维材料和颗粒物质,从而形成吸收芯复合体。

    System and method for dry forming absorbent cores
    3.
    发明申请
    System and method for dry forming absorbent cores 审中-公开
    干式成型吸收芯的系统和方法

    公开(公告)号:US20050101217A1

    公开(公告)日:2005-05-12

    申请号:US10984867

    申请日:2004-11-10

    Abstract: An apparatus and method for dry forming absorbent cores are disclosed. The apparatus has a rotatable drum having a substantially cylindrical surface. A vacuum surface having one or more holes is located substantially circumferentially around at least a portion of the substantially cylindrical surface. A vacuum chamber is located within the rotatable drum. The vacuum chamber has one or more vacuum passages forming a vacuum zone subadjacent at least a portion of the vacuum surface. A first casing sheet is supplied to overlie the vacuum surface at a first location, and a fibrous material is supplied to overlie the first casing sheet at a second location. A supply of particulate matter is deposited onto the fibrous material at a third location, and a second casing sheet is supplied to overlie the first casing sheet, fibrous material and particulate matter at a fourth location, thereby forming an absorbent core composite.

    Abstract translation: 公开了一种用于干式成型吸收芯的设备和方法。 该设备具有一个具有基本上圆柱形表面的可旋转滚筒。 具有一个或多个孔的真空表面基本上围绕基本上圆柱形表面的至少一部分设置。 真空室位于可旋转的滚筒内。 真空室具有一个或多个真空通道,其形成在真空表面的至少一部分下方的真空区域。 在第一位置处提供第一外壳片以覆盖真空表面,并且在第二位置处供应纤维材料以覆盖第一外壳片材。 颗粒物质的供应在第三位置被沉积到纤维材料上,并且第二壳体片被提供以覆盖第四位置处的第一外壳片,纤维材料和颗粒物质,从而形成吸收芯复合体。

    Geometric folding of a web used in a disposable absorbent article
    4.
    发明授权
    Geometric folding of a web used in a disposable absorbent article 有权
    用于一次性吸收制品的网的几何折叠

    公开(公告)号:US06699166B2

    公开(公告)日:2004-03-02

    申请号:US10095096

    申请日:2002-03-12

    CPC classification number: A61F13/15634 A61F13/15747

    Abstract: A device is provided for folding a material web traveling in a machine direction. The device has a folding portion having a leading edge, a breaking wing attached to the folding portion, the breaking wing having a breaking edge, and a roller rotatably attached to the breaking wing and having a surface and a rotational axis. The rotational axis is along a transverse direction, the transverse direction being substantially perpendicular to the machine direction. The roller is for supporting a roller portion of the material web as the material web is fed to the folding portion, and the breaking wing is for supporting a wing portion of the material web as the material web is fed to the folding portion. The surface of the roller is positioned in the transverse direction at a first angle relative to the rotational axis, the breaking edge of the breaking wing is positioned in the transverse direction at a second angle relative to the rotational axis, and the first angle is different from the second angle.

    Abstract translation: 提供了用于折叠沿机器方向行进的材料幅材的装置。 该装置具有前缘的折叠部分,连接到折叠部分的断裂翼,具有断裂边缘的断裂翼和可旋转地附接到断裂翼上并具有表面和旋转轴线的辊。 旋转轴线沿着横向方向,横向方向基本上垂直于机器方向。 辊子用于当材料纤维网被供给到折叠部分时支撑材料幅材的辊部分,并且当材料纤维网被馈送到折叠部分时,断裂翼片用于支撑材料幅材的翼部分。 辊的表面相对于旋转轴线在第一角度处沿横向方向定位,断裂翼的断裂边缘相对于旋转轴线以第二角度位于横向方向上,并且第一角度不同 从第二个角度。

    Hitch Drawbar and Winch Accessory Mount
    5.
    发明申请
    Hitch Drawbar and Winch Accessory Mount 审中-公开
    牵引杆和绞车配件安装

    公开(公告)号:US20170015162A1

    公开(公告)日:2017-01-19

    申请号:US15208130

    申请日:2016-07-12

    Applicant: John Walter

    Inventor: John Walter

    CPC classification number: B60D1/185 B60D1/06 B60D1/46 B60D1/52

    Abstract: A hitch drawbar is provided that supports a hitch ball and a winch accessory mount for supporting a winch or similar accessory above the draw bar. The draw bar includes a first end and a second end. The first end is adapted to be received and secured by a vehicle hitch receiver. The second end supports a hitch ball therefrom. Along the draw bar length, the winch accessory mount extends upwards. The winch accessory mount supports a winch surface above the draw bar and substantially parallel thereto. Along the surface, a winch may be supported. In addition, the winch surface may support alternative accessories thereon. Several embodiments are disclosed, including slidable configurations of the hitch ball surface and slidable configurations of the winch accessory mount and winch surface. Overall, the present invention provides a new and novel draw bar and hitch accessory mount.

    Abstract translation: 提供了一种牵引杆,其支撑悬挂球和用于支撑牵引杆上方的绞盘或类似附件的绞盘附件支架。 牵引杆包括第一端和第二端。 第一端适于由车辆接头接收器接收和固定。 第二端支撑一个挂钩球。 沿着拉杆长度,绞车附件安装架向上延伸。 绞车附件安装件支撑在牵引杆上方并与其基本平行的绞盘表面。 表面上可能会支持绞盘。 此外,绞盘表面可以支撑其上的替代附件。 公开了几个实施例,包括悬挂球表面的可滑动构造和绞车附件安装件和绞盘表面的可滑动构造。 总体而言,本发明提供了一种新的和新颖的拉杆和搭接附件安装座。

    Method for efficient nonsynchronous lng production
    8.
    发明申请
    Method for efficient nonsynchronous lng production 有权
    高效非同步生产方法

    公开(公告)号:US20060283206A1

    公开(公告)日:2006-12-21

    申请号:US10569785

    申请日:2004-09-20

    Abstract: A drive system for a refrigeration compressor such as is used in a natural gas liquefaction plant, allowing the desired compressor speed and maximum turbine efficiency to be maintained throughout varying ambient temperature conditions. A gas turbine is used with an electric starter motor with drive-through capability located on a common drive shaft between the turbine and the compressor. A variable frequency drive (VFD) is connected between the electrical power grid and the electric motor for smooth startups, but also to allow excess turbine mechanical power to be converted to electrical power by the motor operating as a generator, and delivered to the grid at the grid frequency. Pulse width modulation technology may be used to reduce harmonic distortion in the VFD's output. The starter motor also functions as a helper motor when the turbine output is insufficient to drive the compressor at the rotational speed needed to meet throughput requirements.

    Abstract translation: 用于诸如用于天然气液化设备的制冷压缩机的驱动系统,允许在变化的环境温度条件下保持期望的压缩机速度和最大涡轮效率。 燃气轮机与电动起动电动机一起使用,其具有位于涡轮机和压缩机之间的公共驱动轴上的驱动能力。 变频驱动器(VFD)连接在电力电网和电动马达之间以便顺利启动,而且还允许通过作为发电机运行的电动机将多余的涡轮机械功率转换为电力,并将其传送到电网 电网频率。 脉宽调制技术可用于减少VFD输出中的谐波失真。 当涡轮机输出不足以以满足吞吐量要求所需的转速驱动压缩机时,起动马达也用作辅助马达。

    Method and apparatus for forming tow-based absorbent structures with a single casing sheet
    9.
    发明申请
    Method and apparatus for forming tow-based absorbent structures with a single casing sheet 有权
    用单个外壳板形成丝束型吸收结构的方法和装置

    公开(公告)号:US20050147711A1

    公开(公告)日:2005-07-07

    申请号:US11072957

    申请日:2005-03-07

    Abstract: An apparatus and method for forming tow-based absorbent structures having a single casing sheet are disclosed. The apparatus has a tow supply mechanism for providing tow material, a particulate matter supply mechanism for providing particulate matter, and a casing sheet supply mechanism for providing casing sheet material. The apparatus also has a vacuum draw roll having a foraminous center surface that has a width defined by a first edge and a second edge and is rotatable about a first axis. The vacuum draw roll is positioned to receive the tow material, the particulate matter and the casing sheet material to form a open core composite supply. The apparatus also has one or more angled surfaces positioned to create one or more obtuse angles in the open core composite supply, and one or more folders to further fold the one or more obtuse angles in the open core composite supply to form a folded core composite supply.

    Abstract translation: 公开了一种用于形成具有单个外壳片的丝束型吸收结构的装置和方法。 该装置具有用于提供丝束材料的丝束供给机构,用于提供颗粒物质的颗粒物质供给机构以及用于提供外壳片材料的外壳片供给机构。 该设备还具有一种具有多孔中心表面的真空拉伸辊,其具有由第一边缘和第二边缘限定的宽度,并且可围绕第一轴线旋转。 定位真空拉伸辊以接收丝束材料,颗粒物质和套管片材以形成开放的芯复合材料。 该设备还具有一个或多个成角度的表面,其定位成在开放的芯复合材料供应中产生一个或多个钝角,以及一个或多个折页夹,用于进一步折叠开放的芯复合材料供应中的一个或多个钝角以形成折叠的芯复合材料 供应。

    Modular static power converter connected in a multi-level, multi-phase,
multi-circuit configuration
    10.
    发明授权
    Modular static power converter connected in a multi-level, multi-phase, multi-circuit configuration 失效
    模块化静态功率转换器连接在多电平,多相,多电路配置中

    公开(公告)号:US5933339A

    公开(公告)日:1999-08-03

    申请号:US46076

    申请日:1998-03-23

    CPC classification number: H02M7/49 H02P27/16 H02M7/493

    Abstract: In the particular embodiments described, an unlimited voltage static power converter includes an array of multi-level phase drivers consisting of a plurality of H-bridge power modules connected in series. The midpoint node of the series-connected power semiconductors is connected to corresponding midpoint nodes in adjacent H-bridges to achieve a desired high output voltage using available power switch ratings. A three-dimensional multi-level, multi-phase, multi-circuit array of H-bridges permits the use of the static power converter for high power applications, while providing a high degree of power quality. The power semiconductor switches are operated in accordance with a two-dimensional interleaved pulse width modulation algorithm which produces a waveform with a switching frequency that can be more than an order of magnitude higher than the switching frequency of a single power switch. PWM complementary triangle carrier waves are used for individual PWM control of each H-bridge in each multi-level phase driver, resulting in a two-dimensional interleaved control algorithm. Injection of harmonic or non-harmonic content into the PWM reference waveform further reduces harmonic and non-harmonic content of the output voltage waveforms. Part-load efficiency is increased using unique load partitioning methods, five of which are described herein.

    Abstract translation: 在所描述的特定实施例中,无限电压静态功率转换器包括由串联连接的多个H桥功率模块组成的多电平相位驱动器阵列。 串联功率半导体的中点节点连接到相邻H桥中的相应中点节点,以使用可用功率开关额定值来实现期望的高输出电压。 H桥的三维多电平,多相,多电路阵列允许使用静态功率转换器用于高功率应用,同时提供高度的电力质量。 功率半导体开关根据二维交错脉冲宽度调制算法来操作,其产生具有比单个功率开关的开关频率高大一个数量级的开关频率的波形。 PWM互补三角载波用于每个多电平相位驱动器中每个H桥的单独PWM控制,导致二维交织控制算法。 将谐波或非谐波内容注入PWM参考波形进一步降低了输出电压波形的谐波和非谐波含量。 使用独特的负载分区方法增加部分负载效率,其中5个在此描述。

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