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    • 2. 发明授权
    • Sheet material lifts
    • 板材升降机
    • US08480058B2
    • 2013-07-09
    • US12826573
    • 2010-06-29
    • William Matthews
    • William Matthews
    • B66F19/00B23P19/04
    • E04F21/1894E04G21/167
    • Sheet material lifts including an elongate body extending along a longitudinal axis between a first end and a second end, a foot extending transverse the longitudinal axis from the second end of the elongate body, a support element disposed on the foot distal the elongate body, a base defining a fulcrum coupled to the foot, and an arm extending transverse the longitudinal axis from the elongate body at a position intermediate the first end and the second end. In some examples, the arm includes a sleeve, and a shaft slidingly mounted within the sleeve, the shaft being configured to slide along a path between a retracted position proximate the elongate body and an extended position distal the elongate body.
    • 板材升降机,包括沿第一端和第二端之间的纵向轴线延伸的细长主体,从该细长主体的第二端横向于纵向轴线延伸的脚,在该细长体上远端设置的支撑元件, 基部,其限定了联接到所述脚的支点,以及在所述第一端和所述第二端的中间位置处从所述细长主体横向延伸的臂。 在一些示例中,臂包括套筒和滑动地安装在套筒内的轴,该轴构造成沿着靠近细长主体的缩回位置和远离细长主体的延伸位置之间的路径滑动。
    • 3. 发明申请
    • CONSTRUCTION PANEL POSITIONING AND SUPPORT SYSTEM AND TOOLS
    • 建筑面板定位和支持系统和工具
    • US20120222386A1
    • 2012-09-06
    • US13094653
    • 2011-04-26
    • William Matthews
    • William Matthews
    • E04G21/16
    • E04F21/185E04B9/003
    • A construction panel support tool includes a suspension frame having a mounting member to mount the tool to a ceiling joist adjacent a construction panel installation site and a guide member coupled thereto. An elongate support member movably supported on the guide member is movable relative thereto between a deployed position in which a distal portion of the support member extends beneath the panel installation site, and a standby position. The tool may include a locking member selectively engageable to retain the support member in a desired position, such as a deployed position, and may optionally include a biasing member selectively engageable to bias the distal portion of the support member toward the panel installation site.
    • 建筑板支撑工具包括具有安装构件的悬挂框架,该安装构件将工具安装到邻近施工板安装位置的天花板托梁和与其连接的导向构件。 可移动地支撑在引导构件上的细长支撑构件能够在支撑构件的远侧部分在面板安装位置下方延伸的展开位置与待机位置之间相对于其移动。 工具可以包括可选择性地接合以将支撑构件保持在期望位置(例如展开位置)中的锁定构件,并且可以可选地包括偏置构件,其可选择性地接合以将支撑构件的远侧部分朝向面板安装位置偏置。
    • 8. 发明申请
    • Gas-phase polymerization process to achieve a high particle density
    • 气相聚合工艺达到高颗粒密度
    • US20070078239A1
    • 2007-04-05
    • US11243406
    • 2005-10-04
    • Ping CaiWilliam Matthews
    • Ping CaiWilliam Matthews
    • C08F2/00
    • C08F210/16Y10S526/901C08F2/34C08F210/08C08F2500/12C08F2500/18C08F2500/24
    • A process for increasing a granular particle density of a polymeric product using at least one particle density promoting agent is described. The process includes passing a gaseous stream comprising at least one monomer through a fluidized bed reactor in the presence of a catalyst to form a polymeric product having a first granular particle density of less than or equal to about 850 kg/m3, contacting the polymeric product with at least one particle density promoting agent to increase the granular particle density of the polymeric product by at least 2%, withdrawing the polymeric product having an increased granular particle density and a recycle stream comprised of unreacted monomers, and cooling and reintroducing the recycle stream into the fluidized bed reactor with sufficient additional monomer to replace the monomer polymerized and withdrawn as the polymeric product.
    • 描述了使用至少一种颗粒密度促进剂来增加聚合物产品的颗粒密度的方法。 该方法包括在催化剂存在下使包含至少一种单体的气流通过流化床反应器,以形成具有小于或等于约850kg / m 3的第一粒度密度的聚合产物, 使聚合物与至少一种颗粒密度促进剂接触,以使聚合产物的颗粒密度增加至少2%,取出具有增加的颗粒密度的聚合产物和由未反应单体组成的循环流 ,并且将足够的另外的单体冷却并再循环到流化床反应器中以替代作为聚合物产物聚合和取出的单体。
    • 10. 发明申请
    • Method for sonic cleaning of reactor with reduced acoustic wave cancellation
    • 声波消除声波清洗方法
    • US20060130870A1
    • 2006-06-22
    • US11247372
    • 2005-10-11
    • Ping CaiWilliam Matthews
    • Ping CaiWilliam Matthews
    • B08B3/12B08B9/00
    • B08B9/08B08B7/02C08F10/00C08F210/16C08F2/34C08F2/002C08F210/06C08F2500/12C08F210/14
    • In some embodiments, a method for sonically cleaning a reactor (for example, a fluidized bed reactor useful for the production of polyolefins) using a set of sonic sources, including by varying the operating mode of the set of sources to reduce or prevent cleaning problems that would otherwise result from weak spots if the operating mode were not so varied. Other embodiments are methods for determining positions and operating parameters (e.g., duty cycle and output acoustic wave frequency) of each source of a set of sonic sources to be used for sonically cleaning a reactor, and methods including the steps of determining a position (relative to a reactor) of each source of a set of sonic sources, positioning each said source in the determined position, and then sonically cleaning a surface of the reactor including by varying the operating mode of the set of sources to reduce or prevent cleaning problems that would otherwise result from weak spots if the operating mode were not so varied.
    • 在一些实施方案中,使用一组声源对声波清洗反应器(例如,可用于生产聚烯烃的流化床反应器)的方法,包括通过改变该组源的操作模式以减少或防止清洁问题 否则如果操作模式不是如此变化,则会由弱点导致。 其他实施例是用于确定用于声波清洁反应堆的一组声源的每个源的位置和操作参数(例如,占空比和输出声波频率)的方法,以及包括以下步骤的方法:确定位置(相对 一组声源的每个源的反射器,将每个所述源定位在确定的位置,然后通过改变所述源组的操作模式来超声波清洁反应器的表面,以减少或防止清洁问题, 否则会导致弱点,如果操作模式不是如此变化。